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Электронный компонент: K9Sxx08V0x

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K9S2808V0C/B
1
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Revision No
0.0
0.1
0.2
0.3
History
Initial issue
1. Explain how pointer operation works in detail.
2. Updated operation for tRST timing
- If reset command(FFh) is written at Ready state, the device goes
into Busy for maximum 5us.
1. Renamed the 17th pin from Vcc to LVD(Low Voltage Detect)
-The LVD is used to electrically detect the proper supply voltage.
By connecting this pin to Vss through a pull-down resister, it is pos-
sible to distinguish 3.3V product from 5V product. When 3.3V is
applied as Vcc to pins 12 and 22, a 'High' level can be detected
on the system side if the device is a 3.3V product, and 'Low' level
for 5V product.
1.Powerup sequence is added
Recovery time of minimum 1
s is required before internal circuit gets
ready for any command sequences
2. AC parameter tCLR(CLE to RE Delay, min 50ns) is added.
3. AC parameter tAR1 value : 100ns --> 20ns
Draft Date
July 17th 2000
Nov. 20th 2000
Mar. 2th 2001
Sep. 7th 2001
Remark
Advanced
Information
Preliminary
Final
Document Title
SmartMedia
TM
Card
Revision History
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the
right to change the specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions about device. If you
have any questions, please contact the SAMSUNG branch office near your office.
Note : For more detailed features and specifications including FAQ, please refer to Samsung's Flash web site.
http://www.samsung.com/Products/Semiconductor/Flash/TechnicalInfo/datasheets.htm
V
CC
WP
High
~ 2.5V
~ 2.5V
WE
1
s
K9S2808V0C/B
2
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Revision No
0.4
History
1. Unified access timing parameter definition for multiple operating modes
- Changed AC characteristics (Before)
- AC characteristics (After)
. Deleted t
RSTO,
t
CSTO
and t
READID
/ Added
t
CLR,
t
CEA
Parameter
Symbol
Min
Max
Unit
ALE to RE Delay (ID read)
t
AR1
100
-
ns
ALE to RE Delay (Read cycle)
t
AR2
100
-
RE Low to Status Output
t
RSTO
-
35
CE Low to Status Output
t
CSTO
-
45
RE access time(Read ID)
t
READID
-
35
Parameter
Symbol
Min
Max
Unit
ALE to RE Delay (ID read)
t
AR1
50
-
ns
ALE to RE Delay (Read cycle)
t
AR2
50
-
CLE to RE Delay
t
CLR
10
CE Access Time
t
CEA
-
45
Draft Date
Sep. 7th 2001
Remark
Final
Revision History
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the
right to change the specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions about device. If you
have any questions, please contact the SAMSUNG branch office near your office.
Note : For more detailed features and specifications including FAQ, please refer to Samsung Flash web site.
http://www.samsung.com/Products/Semiconductor/Flash/TechnicalInfo/datasheets.htm
CE
CLE
I/O
0
~
7
ALE
RE
WE
90h
00h
ECh
Address. 1cycle
Maker code
tCEA
tAR
tREA
tWHR
CE
CLE
I/O
0
~
7
ALE
RE
WE
90h
00h
ECh
Address. 1cycle
Maker code
tCR
tAR
tREA
K9S2808V0C/B
3
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
History
1. Eliminated the duplicated AC parameter.
- AC characteristics (Before)
. Replaced t
AR1,
t
AR2
with t
AR
- AC characteristics (After)
Parameter
Symbol
Min
Max
Unit
ALE to RE Delay (ID read)
t
AR1
50
-
ns
ALE to RE Delay (Read cycle)
t
AR2
50
-
CLE to RE Delay
t
CLR
10
CE Access Time
t
CEA
-
45
Parameter
Symbol
Min
Max
Unit
ALE to RE Delay
t
AR
10
-
ns
CLE to RE Delay
t
CLR
10
CE Access Time
t
CEA
-
45
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the
right to change the specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions about device. If you
have any questions, please contact the SAMSUNG branch office near your office.
Revision History
Revision No
0.5
Remark
Final
Draft Date
Feb. 9th 2002
CE
WE
CLE
RE
I/O
0
~
7
70h
Status Output
tCLS
tCLH
tCS
tWP
tCH
tDS
tDH
tRSTO
tIR
tRHZ
tCHZ
tWHR
tCSTO
tCLS
CE
WE
CLE
RE
I/O
0
~
7
70h
Status Output
tCLS
tCLH
tCS
tWP
tCH
tDS
tDH
tREA
tIR
tRHZ
tCHZ
tWHR
tCEA
tCLS
K9S2808V0C/B
4
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
SmartMedia
TM
Card
Using Nand flash memory, SmartMedia provides the most cost-
effective solution for the solid state mass storage market. A pro-
gram operation is implemented by the single page of 528 bytes
in typical 200
s and an erase operation is done by the single
block of 16K bytes (K9S6408V0X: 8K bytes) in typical 2ms.
Data in a page can be read out at 50ns cycle time per byte. The
I/O pins serve as ports for address and data inputs/outputs as
well as command inputs. The on-chip writing controller auto-
mates all program and erase functions including pulse repeti-
tion, where required, and internal verification and margining of
data. Even the write-intensive systems can take advantage of
the SmartMeida
s extended reliability of 100K program/erase
cycles by providing ECC(Error Correcting Code) with real time
mapping-out algorithm. (*Endurance varies according to its
density. please refer to Features). SmartMedia is an optimum
solution for data storage applications such as solid state file
storage, digital voice recorder, digital still camera and other por-
table applications requiring non-volatility.
GENERAL DESCRIPTION
FEATURES
Single 2.7V~3.6V Supply
Organization
- Memory Cell Array :
8MB(K9S6408V0X) : ( 8M + 256K)bit x 8bit
16MB(K9S2808V0X) : (16M + 512K)bit x 8bit
32MB(K9S5608V0X) : (32M + 1,024K)bit x 8bit
- Data Register : (512 + 16)bit x8bit
Automatic Program and Erase
- Page Program : (512 + 16)Byte
- Block Erase
32MB, 16MB(K9S56/2808V0X) : (16K + 512)Byte
8MB (K9S6408V0X) : (8K + 256)Byte
528-Byte Page Read Operation
- Random Access : 10
s(Max.)
* K9S6408V0B/A : 7
s(Max.)
* K9S6408V0C : 10
s(Max.)
- Serial Page Access : 50ns(Min.)
Fast Write Cycle Time
- Program Time : 200
s(Typ.)
- Block Erase Time : 2ms(Typ.)
Command/Address/Data Multiplexed I/O Port
Hardware Data Protection
- Program/Erase Lockout During Power Transitions
Reliable CMOS Floating-Gate Technology
- Endurance : 100K Program/Erase Cycles
* K9S6408V0X : 1Million Program/Erase Cycles
- Data Retention : 10 years
Command Register Operation
22pad SmartMedia
TM
(SSFDC)
Unique ID for Copyright Protection
SmartMedia
TM
CARD(SSFDC)
NOTE : Connect all V
CC
and V
SS
pins of each device to common power supply outputs and do not leave V
CC
or V
SS
disconnected.
PIN DESCRIPTION
Pin Name
Pin Function
I/O0 ~ I/O7
Data Input/Outputs
CLE
Command Latch Enable
ALE
Address Latch Enable
CE
Chip Enable
RE
Read Enable
WE
Write Enable
WP
Write Protect
LVD
Low Voltage Detect
GND
Ground
R/B
Ready/Busy output
V
CC
Power
V
SS
Ground
N.C
No Connection
12
22
11
1
12
13
14
15
16
17
18
19
20
21
22
V
CC
I/O
4
I/O
5
I/O
6
I/O
7
LVD
GND
R/B
RE
CE
V
CC
11
10
9
8
7
6
5
4
3
2
1
V
SS
V
SS
I/O
3
I/O
2
I/O
1
I/O
0
WP
WE
ALE
CLE
V
SS
22 PAD SmartMedia
TM
ID 32MB
PIN DESCRIPTION
Device
Unique ID Support
K9S2808V0X
K9S5608V0X
K9S6408V0C
O
K9S6408V0A/M
X
The pin 17(LVD) is used to detect 5V or 3.3V product electrically. Please, refer to the SmartMedia Application note for detail.
K9S2808V0C/B
5
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Figure 1. FUNCTIONAL BLOCK DIAGRAM
V
CC
X-Buffers
Command
I/O Buffers & Latches
Latches
& Decoders
Y-Buffers
Latches
& Decoders
Register
Control Logic
& High Voltage
Generator
Global Buffers
Output
Driver
V
SS
A
9
- A
24
A
0
- A
7
Command
CE
RE
WE
WP
I/0 0
I/0 7
V
CC
V
SS
A
8
CLE ALE
NAND Flash
ARRAY
Y-Gating
Page Register & S/A
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0X : 128M + 4M Bit
K9S6408V0X : 64M + 2M Bit
K9S5608V0X : 256M + 8M Bit
K9S2808V0X :
(512 + 16)Byte x 32,768
K9S6408V0X :
(512 + 16)Byte x 16,384
K9S5608V0X :
(512 + 16)Byte x 65,536
K9S2808V0C/B
6
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
512B Byte
16 Byte
Figure 2. ARRAY ORGANIZATION
NOTE : Column Address : Starting Address of the Register.
00h Command(Read) : Defines the starting address of the 1st half of the register.
01h Command(Read) : Defines the starting address of the 2nd half of the register.
A
22
: K9S6408V0X should be designated up to A
22
, addresse A
23 to
A
24
must be set to "Low"
.
A
23
: K9S2808V0X should be designated up to A
23
, address A
24
must be set to "Low".
A
24
: K9S5608V0X should be designated up to A
24
.
* A
8
is set to "Low" or "High" by the 00h or 01h Command.
* The device ignores any additional input of address cycles than reguired.
I/O 0
I/O 1
I/O 2
I/O 3
I/O 4
I/O 5
I/O 6
I/O 7
1st Cycle
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
2nd Cycle
A
9
A
10
A
11
A
12
A
13
A
14
A
15
A
16
3rd Cycle
A
17
A
18
A
19
A
20
A
21
A
22
A
23
A
24
1st half Page Register
(=256 Bytes)
2nd half Page Register
(=256 Bytes)
Pages
512 Byte
8 bit
16 Byte
I/O 0 ~ I/O 7
Page Register
ARRAY ORGANIZATION
1 Page
1 Block
1 Device
K9S6408V0X
528 Byte
528 Bytes x 16 Pages
528 Byte x 16Pages x 1024 Blocks
K9S2808V0X
528Byte
528Bytes x 32 Pages
528Byte x 32Pages x 1024 Blocks
K9S5608V0X
528 Byte
528 Byte x 32 Pages
528Bytes x 32Pages x 2048 Blocks
Column Address
Row Address
(Page Address)
(8MB) : 1block=16pages
(16MB/32MB) : 1block=32pages
K9S2808V0C/B
7
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
PRODUCT INTRODUCTION
The SmartMeida has the memory organization as following Table1. Spare sixteen columns are located from column address of 512
to 527. A 528-byte data register is connected to memory cell arrays and is accommodating data-transfer between the I/O buffers and
memory cell arrays during page read and page program operations. The memory array is made up of 16 cells that are serially con-
nected to form a NAND structure. Each of the 16 cells resides in a different page. A block consists of the 32 pages formed by two 16
cell memory array. The array organization is shown in Figure 2. The program and the read operations are executed on a page basis,
while the erase operation is executed on a block basis.
The SmartMedia has addresses multiplexed into 8 I/O's. This scheme dramatically reduces pin counts and allows system upgrade to
future densities by maintaining consistency in system board design. Command, address and data are all written through I/O's by
bringing WE to low while CE is low. Data is latched on the rising edge of WE. Command Latch Enable(CLE) and Address Latch
Enable(ALE) are used to multiplex command and address respectively, via the I/O pins. All commands require one bus cycle except
for Block Erase and Page Program commands which require two cycles: one cycle for a setup and another for an execution. The
physical space of the SmartMedia varies according to its density and from 8MB to 32MB SmartMedia require three cycles for byte-
level addressing; column address, row address, in that order. Page Read and Page Program need the same three address cycles fol-
lowing the required command input. In Block Erase operation, however, only the two row address cycles are used. Device operations
are selected by writing specific commands into the command register. Table 2. defines the specific commands of the SmartMedia.
Table 1.MEMORY ORGANIZATION
Memory Organization
Number of rows(Pages)
Number of columns
K9S6408V0X
66Mbit (69,206,016 bit)
16,384 rows
528 columns
K9S2808V0X
132Mbit (138,412,032 bit)
32,768 rows
528 columns
K9S5608V0X
264Mbit (276,824,064 bit)
65,536 rows
528 columns
Table 2. COMMAND SETS
NOTE: 1. The 00h command defines starting address of the 1st half of registers.The 01h command defines starting address of the 2nd half of registers.
After data access on the 2nd half of register by the 01h command, address pointer is automatically moved to the 1st half register(00h) on the
next cycle.
Caution : Any undefined command inputs are prohibited except for above command sets of Table2.
Function
1st. Cycle
2nd. Cycle
Acceptable Command during Busy
Read 1
00h/01h
(1)
-
Read 2
50h
-
Read ID
90h
-
Reset
FFh
-
O
Page Program
80h
10h
Block Erase
60h
D0h
Read Status
70h
-
O
K9S2808V0C/B
8
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
PIN DESCRIPTION
Command Latch Enable(CLE)
The CLE input controls the path activation for commands sent to the command register. When active high, commands are latched
into the command register through the I/O ports on the rising edge of the WE signal.
Address Latch Enable(ALE)
The ALE input controls the activating path for address to the internal address registers. Addresses are latched on the rising edge of
WE with ALE high.
Chip Enable(CE)
The CE input is the device selection control. When CE goes high during a read operation the device is returned to standby mode.
However, when the device is in the busy state during program or erase, CE high is ignored and does not return the device to standby
mode.
Write Enable(WE)
The WE input controls writing to the I/O port. Commands, address and data are latched on the rising edge of the WE pulse.
Read Enable(RE)
The RE input is the serial data-out control, and when active drives the data onto the I/O bus.
I/O Port : I/O 0 ~ I/O 7
The I/O pins are used to input command, address and data, and to output data during read operations. The I/O pins float to high-z
when the chip is deselected or when the outputs are disabled.
Write Protect(WP)
The WP pin provides inadvertent write/erase protection during power transitions. The internal high voltage generator is reset when
the WP pin is active low.
Ready/Busy(R/B)
The R/B output indicates the status of the device operation. When low, it indicates that a program, erase or random read operation is
in process and returns to high state upon completion. It is an open drain output and does not float to high-z condition when the chip
is deselected or when outputs are disabled.
Low Voltage Detect(LVD)
The LVD is used to detect the proper supply voltage electrically. By connecting this pin to Vss through a pull-down resister, it is pos-
sible to distinguish 3.3V product from 5V product. When 3.3V is applied as Vcc to pins 12 and 22, a 'High' level can be detected on
the system side if the device is a 3.3V product, and 'Low' level for 5V product.
K9S2808V0C/B
9
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
DC AND OPERATING CHARACTERISTICS
(Recommended operating conditions otherwise noted.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Operating
Current
Sequential Read
I
CC
1
tRC=50ns, CE=V
IL
, I
OUT
=0mA
-
10
20
mA
Program
I
CC
2
-
-
10
20
Erase
I
CC
3
-
-
10
20
Stand-by Current(TTL)
I
SB
1
CE=V
IH
, WP=0V/V
CC
-
-
1
Stand-by Current(CMOS)
I
SB
2
CE=V
CC
-0.2, WP=0V/V
CC
-
10
50
A
Input Leakage Current
I
LI
V
IN
=0 to 3.6V
-
-
10
Output Leakage Current
I
LO
V
OUT
=0 to 3.6V
-
-
10
Input High Voltage, All inputs
V
IH
-
2.0
-
V
CC
+0.3
V
Input Low Voltage, All inputs
V
IL
-
-0.3
-
0.8
Output High Voltage Level
V
OH
I
OH
=-400
A
2.4
-
-
Output Low Voltage Level
V
OL
I
OL
=2.1mA
-
-
0.4
Output Low Current(R/B)
I
OL
(R/B)
V
OL
=0.4V
8
10
-
mA
ABSOLUTE MAXIMUM RATINGS
NOTE :
1. Minimum DC voltage is -0.3V on input/output pins. During transitions, this level may undershoot to -2.0V for periods <30ns.
Maximum DC voltage on input/output pins is V
CC
+0.3V which, during transitions, may overshoot to V
CC
+2.0V for periods <20ns.
2. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the conditions
as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Parameter
Symbol
Rating
Unit
Voltage on any pin relative to V
SS
V
IN
-0.6 to + 4.6
V
V
CC
-0.6 to + 4.6
Temperature Under Bias
T
BIAS
-10 to +65
C
Storage Temperature
T
STG
-20 to +65
C
RECOMMENDED OPERATING CONDITIONS
(Voltage reference to GND, T
A
=0 to 55
C)
Parameter
Symbol
Min
Typ.
Max
Unit
Supply Voltage
V
CC
2.7
3.3
3.6
V
Supply Voltage
V
SS
0
0
0
V
K9S2808V0C/B
10
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
MODE SELECTION
NOTE : 1. X can be V
IL
or V
IH.
2. WP should be biased to CMOS high or CMOS low for standby.
CLE
ALE
CE
WE
RE
WP
Mode
H
L
L
H
X
Read Mode Command Input
L
H
L
H
X
Address Input(3clock)
H
L
L
H
H
Write Mode Command Input
L
H
L
H
H
Address Input(3clock)
L
L
L
H
H
Data Input
L
L
L
H
X
sequential Read & Data Output
X
X
L
X
X
X
During Read(Busy)
X
X
X
X
X
H
During Program(Busy)
X
X
X
X
X
H
During Erase(Busy)
X
X
(1)
X
X
X
L
Write Protect
X
X
H
X
X
0V/V
CC
(2)
Stand-by
CAPACITANCE
(
T
A
=25
C, V
CC
=3.3V, f=1.0MHz)
NOTE : Capacitance is periodically sampled and not 100% tested.
Item
Symbol
Test Condition
Min
Max
Unit
Input/Output Capacitance
C
I/O
V
IL
=0V
-
10
pF
Input Capacitance
C
IN
V
IN
=0V
-
10
pF
VALID BLOCK
NOTE :
1. The
K9SXX08V0X
may include invalid blocks when first shipped. Additional invalid blocks may develop while being used. The number of valid
blocks is presented with both cases of invalid blocks considered. Invalid blocks are defined as blocks that contain one or more bad bits
. Do not
erase or program factory-marked bad blocks.
Refer to the attached technical notes for an appropriate management of invalid blocks.
2. Per the specification of the physical format version 1.2 by SSFDC forum, minimum 1,000 vaild blocks are guaranteed for each 16MB memory space.
(Refer to the attached technical notes)
Parameter
Symbol
Min
Typ.
Max
Unit
Valid Block Number
K9S6408V0X
N
VB
1,014
1,020
1,024
Blocks
K9S2808V0X
1,004
-
1,024
K9S5608V0X
2013
-
2048
Program/Erase Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
Program Time
t
PROG
-
200
500
s
Number of Partial Program Cycles
in the Same Page
Main Array
Nop
-
-
2
cycles
Spare Array
3
cycles
Block Erase Time
t
BERS
-
2
3
ms
AC TEST CONDITION
(T
A
=0 to 55
C, V
CC
=2.7V~3.6V unless otherwise noted)
Parameter
Value
Input Pulse Levels
0.4V to 2.4V
Input Rise and Fall Times
5ns
Input and Output Timing Levels
1.5V
Output Load (3.0V +/-10%)
1 TTL GATE and CL=50pF
Output Load (3.3V +/-10%)
1 TTL GATE and CL=100pF
K9S2808V0C/B
11
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
AC Characteristics for Operation
NOTE : 1. The time to Ready depends on the value of the pull-up resistor tied R/B pin.
2. To break the sequential read cycle, CE must be held high for longer time than tCEH.
3. If reset command(FFh) is written at Ready state, the device goes into Busy for maximum 5us.
Parameter
Symbol
Min
Max
Unit
Data Transfer from Cell to Register
t
R
-
10
s
CLE to RE Delay
t
CLR
10
-
ns
ALE to RE Delay
t
AR
10
-
ns
Ready to RE Low
t
RR
20
-
ns
RE Pulse Width
t
RP
30
-
ns
WE High to Busy
t
WB
-
100
ns
Read Cycle Time
t
RC
50
-
ns
RE Access Time
t
REA
-
35
ns
RE High to Output Hi-Z
t
RHZ
15
30
ns
CE High to Output Hi-Z
t
CHZ
-
20
ns
RE High Hold Time
t
REH
15
-
ns
Output Hi-Z to RE Low
t
IR
0
-
ns
Last RE High to Busy (at sequential read)
t
RB
-
100
ns
CE High to Ready (in case of interception by CE at read)
t
CRY
-
50 +tr(R/B)
(1)
ns
CE High Hold Time(at the last serial read)
(2)
t
CEH
100
-
ns
WE High to RE Low
t
WHR
60
-
ns
Device Resetting Time(Read/Program/Erase)
t
RST
-
5/10/500
(3)
s
AC Timing Characteristics for Command / Address / Data Input
NOTE : 1. If tCS is set less than 10ns, tWP must be minimum 35ns, otherwise, tWP may be minimum 25ns.
Parameter
Symbol
Min
Max
Unit
CLE setup Time
t
CLS
0
-
ns
CLE Hold Time
t
CLH
10
-
ns
CE setup Time
t
CS
0
-
ns
CE Hold Time
t
CH
10
-
ns
WE Pulse Width
t
WP
25
(1)
-
ns
ALE setup Time
t
ALS
0
-
ns
ALE Hold Time
t
ALH
10
-
ns
Data setup Time
t
DS
20
-
ns
Data Hold Time
t
DH
10
-
ns
Write Cycle Time
t
WC
50
-
ns
WE High Hold Time
t
WH
15
-
ns
K9S2808V0C/B
12
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
SmartMedia Technical Notes
Identifying Invalid Block(s)
Invalid Block(s)
Invalid blocks are defined as blocks that contain one or more invalid bits whose reliability is not guaranteed by Samsung. The infor-
mation regarding the invalid block(s) is so called as the invalid block information. An invalid block(s) does not affect the performance
of valid block(s) because it is isolated from the bit line and the common source line by a select transistor. The system design must be
able to mask out the invalid block(s) via address mapping.
SSFDC Forum specifies the logical format and physical format to ensure compatibility of SmartMedia. Samsung pre-formats Smart-
Media in the Forum-compliant format prior to shipping. The physical format standard by SSFDC Forum specifies that invalid block
information is written at the 6th byte of spare area in invalid blocks with two or more "0" bits, while valid blocks are erased(FFh). Since
the invalid block information is also erasable in most cases, it is impossible to recover the information once it has been erased. There-
fore, the system must be able to recognize the invalid block(s) based on the original invalid block information and create the invalid
block table via the following suggested flow chart(Figure 3). Any intentional erasure of the original invalid block information is prohib-
ited.
*
Check "FFh" at the column address 517
Figure 3. Flow chart to create invalid block table.
Start
Set Block Address = 0
Check "FFh" ?
Increment Block Address
Last Block ?
End
No
Yes
Yes
Create (or update)
No
Invalid Block(s) Table
of the first page in the block
K9S2808V0C/B
13
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
SmartMedia Technical Notes
(Continued)
Program Flow Chart
Start
I/O 6 = 1 ?
Write 00h
I/O 0 = 0 ?
No
*
If ECC is used, this verification
Write 80h
Write Address
Write Data
Write 10h
Read Status Register
Write Address
Wait for tR Time
Verify Data
No
Program Completed
or R/B = 1 ?
Program Error
Yes
No
Yes
*
Program Error
Yes
: If program operation results in an error, map out
the block including the page in error and copy the
target data to another block.
*
operation is not needed.
Error in write or read operation
Over its life time, the additional invalid blocks may be developed during its use. Refer to the qualification report for the actual data.The
following possible failure modes should be considered to implement a highly reliable system. In the case of status read failure after
erase or program, block replacement should be done. Because program status failure during a page program does not affect the data
of the other pages in the same block, block replacement can be executed with a page-sized buffer by finding an erased empty block
and reprogramming the current target data and copying the rest data of the replaced block. To improve the efficiency of memory
space, it is recommended that the read or verification failure due to single bit error be reclaimed by ECC without any block replace-
ment. The said additional block failure rate does not include those reclaimed blocks.
Failure Mode
Detection and Countermeasure sequence
Write
Erase Failure
Status Read after Erase --> Block Replacement
Program Failure
Status Read after Program --> Block Replacement
Read back ( Verify after Program) --> Block Replacement
or ECC Correction
Read
Single Bit Failure
Verify ECC -> ECC Correction
ECC
: Error Correcting Code --> Hamming Code etc.
Example) 1bit correction & 2bit detection
K9S2808V0C/B
14
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Erase Flow Chart
Start
I/O 6 = 1 ?
I/O 0 = 0 ?
No
*
Write 60h
Write Block Address
Write D0h
Read Status Register
or R/B = 1 ?
Erase Error
Yes
No
: If erase operation results in an error, map out
the failing block and replace it with another block.
*
Erase Completed
Yes
Read Flow Chart
Start
Verify ECC
No
Write 00h
Write Address
Read Data
ECC Generation
Reclaim the Error
Page Read Completed
Yes
SmartMedia Technical Notes
(Continued)
Block Replacement
* Step1
When an error happens in the nth page of the Block 'A' during the program operation.
* Step2
Copy the nth page data of the Block 'A' in the buffer memory to the nth page of another free block. (Block 'B')
* Step3
Then, copy the data in the 1st ~ (n-1)th page of the Block 'A' to the same location of the Block 'B'.
* Step4
Do not erase or program to Block 'A' by creating an 'invalid Block' table or using other appropriate scheme.
Buffer memory of the controller.
1st
Block A
Block B
(n-1)th
nth
(page)
1
2
{
1st
(n-1)th
nth
(page)
{
an error occurs.
K9S2808V0C/B
15
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Samsung NAND Flash has three address pointer commands as a substitute for the two most significant column addresses. '00h'
command sets the pointer to 'A' area(0~255byte), '01h' command sets the pointer to 'B' area(256~511byte), and '50h' command sets
the pointer to 'C' area(512~527byte). With these commands, the starting column address can be set to any of a whole
page(0~527byte). '00h' or '50h' is sustained until another address pointer command is inputted. '01h' command, however, is effective
only for one operation. After any operation of Read, Program, Erase, Reset, Power_Up is executed once with '01h' command, the
address pointer returns to 'A' area by itself. To program data starting from 'A' or 'C' area, '00h' or '50h' command must be inputted
before '80h' command is written. A complete read operation prior to '80h' command is not necessary. To program data starting from
'B' area, '01h' command must be inputted right before '80h' command is written.
00h
(1) Command input sequence for programming 'A' area
Address / Data input
80h
10h
00h
80h
10h
Address / Data input
The address pointer is set to 'A' area(0~255), and sustained
01h
(2) Command input sequence for programming 'B' area
Address / Data input
80h
10h
01h
80h
10h
Address / Data input
'B', 'C' area can be programmed.
It depends on how many data are inputted.
'01h' command must be rewritten before
every program operation
The address pointer is set to 'B' area(256~512), and will be reset to
'A' area after every program operation is executed.
50h
(3) Command input sequence for programming 'C' area
Address / Data input
80h
10h
50h
80h
10h
Address / Data input
Only 'C' area can be programmed.
'50h' command can be omitted.
The address pointer is set to 'C' area(512~527), and sustained
'00h' command can be omitted.
It depends on how many data are inputted.
'A','B','C' area can be programmed.
Pointer Operation of the SmartMedia
Destination of the pointer
Command
Pointer position
Area
00h
01h
50h
0 ~ 255 byte
256 ~ 511 byte
512 ~ 527 byte
1st half array(A)
2nd half array(B)
spare array(C)
"A" area
256 Byte
(00h plane)
"B" area
(01h plane)
"C" area
(50h plane)
256 Byte
16 Byte
"A"
"B"
"C"
Internal
Page Register
Pointer select
commnad
(00h, 01h, 50h)
Pointer
Figure 4. Block Diagram of Pointer Operation
K9S2808V0C/B
16
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
System Interface Using CE don't-care.
CE
WE
t
WP
t
CH
t
CS
(Min. 10ns)
Start Add.(3Cycle)
80h
Data Input
CE
CLE
ALE
WE
I/O
0
~
7
Data Input
CE don't-care
10h
For an easier system interface, CE may be inactive during the data-loading or sequential read as shown below. The internal 528byte
page registers are utilized as separate buffers for this operation and the system design gets more flexible. In addition, for voice or
audio applications which use slow cycle time on the order of u-seconds, de-activating CE during the data-loading and reading would
provide significant savings in power consumption.
Start Add.(3Cycle)
00h
CE
CLE
ALE
WE
I/O
0
~
7
Data output (Sequential)
CE don't-care
R/B
t
R
RE
t
CEA
out
t
REA
(Max. 45ns)
CE
RE
I/O
0
~
7
Figure 5. Program Operation with CE don't-care.
Figure 6. Read Operation with CE don't-care.
Must be held
low during tR.
K9S2808V0C/B
17
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Command Latch Cycle
CE
WE
CLE
ALE
I/O
0
~
7
Command
Address Latch Cycle
t
CLS
t
CS
t
CLH
t
CH
t
WP
t
ALS
t
ALH
t
DS
t
DH
CE
WE
CLE
ALE
I/O
0
~
7
A
0
~A
7
t
CLS
t
CS
t
WC
t
WP
t
ALS
t
DS
t
DH
t
ALH
t
ALS
t
WH
A
9
~A
16
t
WC
t
WP
t
DS
t
DH
t
ALH
t
ALS
t
WH
A
17
~A
24
t
WP
t
DS
t
DH
t
ALH
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
18
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Input Data Latch Cycle
CE
CLE
WE
I/O
0
~
7
DIN 0
DIN 1
DIN 511
ALE
t
ALS
t
CLH
t
WC
t
CH
t
DS
t
DH
t
DS
t
DH
t
DS
t
DH
t
WP
t
WH
t
WP
t
WP
Serial Access Cycle after Read
(CLE=L, WE=H, ALE=L)
RE
CE
R/B
I/O
0
~
7
Dout
Dout
Dout
t
RC
t
REA
t
RR
t
RHZ
t
REA
t
REH
t
REA
t
CHZ
t
RHZ
NOTES : Transition is measured
200mV from steady state voltage with load.
This parameter is sampled and not 100% tested.
t
RP
K9S2808V0C/B
19
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
READ1 OPERATION
(READ ONE PAGE)
CLE
R/B
I/O
0
~
7
WE
ALE
RE
Busy
00h or 01h A
0
~ A
7
A
9
~ A
16
A
17
~ A
24
Dout N
Dout N+1 Dout N+2
Dout N+3
Column
Address
Page(Row)
Address
t
WB
t
AR
t
R
t
RC
t
RHZ
t
RR
t
CHZ
Dout 527
t
RB
t
CRY
t
WC

Status Read Cycle
CE
WE
CLE
RE
I/O
0
~
7
70h
Status Output
t
CLR
t
CLH
t
CS
t
WP
t
CH
t
DS
t
DH
t
REA
t
IR
t
RHZ
t
CHZ
t
WHR
t
CEA
t
CLS
CE
t
CEH
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
20
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
READ1 OPERATION
(INTERCEPTED BY CE)
CE
CLE
R/B
I/O
0
~
7
WE
ALE
RE
Busy
00h or 01h
A
0
~ A
7
A
9
~ A
16
A
17
~ A
24
Dout N
Dout N+1 Dout N+2
Dout N+3
Page(Row)
Address
Address
Column
t
WB
t
AR
t
CHZ
t
R
t
RR
t
RC
READ2 OPERATION
(READ ONE PAGE)
CE
CLE
R/B
I/O
0
~
7
WE
ALE
RE
50H
A
0
~ A
7
A
9
~ A
16
A
17
~ A
24
Dout
Dout 527
M Address
511+M
Dout
511+M+1
t
AR
t
R
t
WB
t
RR
A
0
~A
3
: Valid Address
A
4
~A
7
: Don
t care
Selected
Row
Start
address M
512
16
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
21
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
PAGE PROGRAM OPERATION
CE
CLE
R/B
I/O
0
~
7
WE
ALE
RE
80h
70h
I/O
0
Din
N
Din
Din
10h
527
N+1
A
0
~ A
7
A
17
~ A
24
A
9
~ A
16
Sequential Data
Input Command
Column
Address
Page(Row)
Address
1 up to 528 Byte Data
Serial Input
Program
Command
Read Status
Command
I/O
0
=0 Successful Program
I/O
0
=1 Error in Program
t
PROG
t
WB
t
WC
t
WC
t
WC
SEQUENTIAL ROW READ OPERATION
(Within a block especially for 64Mb-Cdie and 128Mb Bdie)
CE
CLE
R/B
I/O
0
~
7
WE
ALE
RE
00h
A
0
~ A
7
Busy
M
Output
A
9
~ A
16
A
17
~ A
24
Dout
N
Dout
N+1
Dout
N+2
Dout
527
Dout
0
Dout
1
Dout
2
Dout
527
Busy
M+1
Output
N
Ready

A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
22
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
BLOCK ERASE OPERATION
(ERASE ONE BLOCK)
CE
CLE
R/B
I/O
0
~
7
WE
ALE
RE
60h
A
17
~ A
24
A
9
~ A
16
Auto Block Erase
Erase Command
Read Status
Command
I/O
0
=1 Error in Erase
DOh
70h
I/O 0
Busy
t
WB
t
BERS
I/O
0
=0 Successful Erase
Page(Row)
Address
t
WC
Setup Command
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
23
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
MANUFACTURE & DEVICE ID READ OPERATION
CE
CLE
I/O 0 ~ 7
WE
ALE
RE
90h
Read ID Command
Maker Code
Device Code
00h
ECh
75h
Address. 1cycle
NOTE :
The 3rd byte of device IDs represents whether there is Unigue ID or not. If A5h is read out, that means that the Smart Media has the Unigue ID.
UniqueID Code
A5
1st
2nd
3rd
t
REA
t
AR
t
CLR
ID Definition Table
90 ID : Access command = 90H
READ ID (1)
Value
Description
1
st
Byte
2
nd
Byte
3
rd
Byte
ECh
*75h
A5h
Maker Code
Device Code
Unique1D code
K9S6408V0X : E6h
K9S2808V0X : 73h
K9S5608V0X : 75h
NOTE :
*Device Code : K9S6408V0X : E6h , K9S2808V0X : 73h , K9S5608V0X: 75h
K9S2808V0C/B
24
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
DEVICE OPERATION
PAGE READ
Upon initial device power up, the device defaults to Read1 mode. This operation is also initiated by writing 00h to the command regis-
ter along with three address cycles. Once the command is latched, it does not need to be written for the following page read opera-
tion. Three types of operations are available : random read, sequential read and sequential row read.
The random read mode is enabled when the page address is changed. The 528 bytes of data within the selected page are transferred
to the data registers in less than 10
s(t
R
). The system controller can detect the completion of this data transfer(tR) by monitoringing
the output of R/B pin. Once the data in a page is loaded into the registers, they may be read out in 50ns cycle time by pulsing RE
sequentially. High to low transitions of the RE clock output the data starting from the selected column address up to the last column
address.
After the data of the last column address is clocked out, the next page is automatically selected for sequential row read.
Waiting 10
s again allows reading the selected page. The sequential row read operation is terminated by bringing CE high. The way
the Read1 and Read2 commands work is like a pointer set to either the main area or the spare area. The spare area of bytes 512 to
527 may be selectively accessed by writing the Read2 command. Addresses A
0
to A
3
set the starting address of the spare area while
addresses A
4
to A
7
are ignored. Unless the operation is aborted, the page address is automatically incremented for sequential row
read as in Read1 operation and spare sixteen bytes of each page may be sequentially read. The Read1 command(00h/01h) is
needed to move the pointer back to the main area. Figures 7 through 10 show typical sequence and timings for each read operation.
Figure 7. Read1 Operation
Start Add.(3Cycle)
00h
A
0
~ A
7
& A
9
~ A
24
Data Output (Serial Access)
(00h Command)
Data Field
Spare Field
CE
CLE
ALE
R/B
WE
I/O
0
~
7
RE
t
R
* After data access on 2nd half array by 01h command, the start pointer is automatically moved to 1st half
array (00h) at next cycle.
(01h Command)*
Data Field
Spare Field
1st half array
2st half array
1st half array
2st half array
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
25
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Figure 8. Read2 Operation
50h
A
0
~ A
3
& A
9
~ A
24
Data Output(Serial Access)
Spare Field
CE
CLE
ALE
R/B
WE
Data Field
Spare Field
Start Add.(3Cycle)
(A
4
~ A
7
:
Don
t Care)
I/O
0
~
7
RE
Figure 9. Sequential Row Read1 Operation
00h
01h
A
0
~ A
7
& A
9
~ A
24
I/O
0
~
7
R/B
Start Add.(3Cycle)
Data Output
Data Output
Data Output
1st
2nd
Nth
(528 Byte)
(528 Byte)
t
R
t
R
t
R
t
R
The Sequential Read 1 and Read 2 operations are allowed only within a block and after the last page of a block
is readout, the sequential read operation must be terminated by bringing CE high. When the page address
moves onto the next block, read command and address must be given.
(00h Command)
1st half array 2nd half array
Data Field
Spare Field
1st
2nd
(01h Command)
Data Field
Spare Field
Nth
1st half array 2nd half array
1st
2nd
Nth
Block
1st half array 2nd half array
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
26
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Figure 10. Sequential Row Read2 Operation
PAGE PROGRAM
The device is programmed basically on a page basis, however it does allow multiple partial page programing of a byte or consecutive
bytes up to 528, in a single page program cycle. The number of consecutive partial page programming operation within the same
page without an intervening erase operation has the limit by its density. (See the Table of Program/Erase Characteristics) It is advis-
able not to program more often than recommend. It might cause failures due to disturbance when it exceeds its limits. The failure
mode could be that data "1" of the erased cell might be changed into data"0"of the programmed cell.
The addressing may be done in any random order in a block. A page program cycle consists of a serial data loading period in which
up to 528 bytes of data may be loaded into the page register, followed by a non-volatile programming period where the loaded data is
programmed into the appropriate cell. Serial data loading can be started from the 2nd half array by moving pointer. About the pointer
operation, please refer to the attached technical notes.The serial data loading period begins by inputting the Serial Data Input com-
mand(80h), followed by the three cycle address input and then serial data loading. The bytes other than those to be programmed do
not need to be loaded.The Page Program confirm command(10h) initiates the programming process. Writing 10h alone without previ-
ously entering the serial data will not initiate the programming process. The internal write-controller automatically executes the algo-
rithms and timings necessary for program and verify, thereby freeing the system controller for other tasks. Once the program process
starts, the Read Status Register command may be entered, with RE and CE low, to read the status register. The system controller
can detect the completion of a program cycle by monitoring the R/B output, or the Status bit(I/O 6) of the Status Register. Only the
Read Status command and Reset command are valid while programming is in progress. When the Page Program is completed, the
Write Status Bit(I/O 0) may be checked(Figure 11). The internal write verify detects only errors for "1"s that are not successfully pro-
grammed to "0"s. The command register remains in Read Status command mode until another valid command is written to the com-
mand register.
50h
A
0
~ A
3
& A
9
~ A
24
I/O
0
~
7
R/B
Start Add.(3Cycle)
Data Output
Data Output
Data Output
2nd
Nth
(16Byte)
(16Byte)
1st
Figure 11. Program & Read Status Operation
80h
A
0
~ A
7
& A
9
~ A
24
I/O
0
~
7
R/B
Address & Data Input
I/O
0
Pass
528 Byte Data
10h
70h
Fail
t
R
t
R
t
R
t
PROG
(A
4
~ A
7
:
Don
t Care)
Data Field
Spare Field
1st
Block
Nth
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
27
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Figure 12. Block Erase Operation
BLOCK ERASE
The Erase operation is done on a block(16K Byte) basis. Block address loading is accomplished in two cycles initiated by an Erase
Setup command(60h). Only address A
14
to (A
22
: K9S6408V0X, A
23
: K9S2808V0X, A
24
: K9S5608V0X
)
is valid while A
9
to A
13
is
ignored. The Erase Confirm command(D0h) following the block address loading initiates the internal erasing process. This two-step
sequence of setup followed by execution command ensures that memory contents are not accidentally erased due to external noise
conditions.
At the rising edge of WE after the erase confirm command input, the internal write controller handles erase and erase-verify. When
the erase operation is completed, the Write Status Bit(I/O 0) may be checked. Figure 12 details the sequence.
60h
Block Add. : A
9
~ A
24
I/O
0
~
7
R/B
Address Input(2Cycle)
I/O
0
Pass
D0h
70h
Fail
t
BERS
READ STATUS
The device contains a Status Register which may be read to find out whether program or erase operation is completed, and whether
the program or erase operation is completed successfully. After writing 70h command to the command register, a read cycle outputs
the content of the Status Register to the I/O pins on the falling edge of CE or RE, whichever occurs last. This two line control allows
the system to poll the progress of each device in multiple memory connections even when R/B pins are common-wired. RE or CE
does not need to be toggled for updated status. Refer to Table3 for specific Status Register definitions. The command register
remains in Status Read mode until further commands are issued to it. Therefore, if the status register is read during a random read
mode, a read command(00h or 50h) should be given before the sequential read cycle.
Read Status Register Definition
I/O #
Status
Definition
I/O 0
Program / Erase
"0" : Successful Program / Erase
"1" : Error in Program / Erase
I/O 1
Reserved for Future
Use
"0"
I/O 2
"0"
I/O 3
"0"
I/O 4
"0"
I/O 5
"0"
I/O 6
Device Operation
"0" : Busy "1" : Ready
I/O 7
Write Protect
"0" : Protected "1" : Not Protected
A
22
: K9S6408V0X
A
23
: K9S2808V0X
A
24
: K9S5608V0X
K9S2808V0C/B
28
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
READ ID
The device contains a product identification mode, initiated by writing 90h to the command register, followed by an address input of
00h. Three read cycles sequentially output the manufacture code(ECH), the device code (
K9S6408V0X : E6h , K9S2808V0X : 73h ,
K9S5608V0X: 75h
), the UniqueID code(A5h) respectively. The command register remains in Read ID mode until further commands are
issued to it. Figure 13 shows the operation sequence.
CE
CLE
I/O
0
~
7
ALE
RE
WE
90h
00h
Address. 1cycle
t
CEA
t
AR
t
REA
ECh
Maker code
75h
Device code
A5h
UniqueID code
t
CLR
t
WHR
K9S6408V0X : E6h
K9S2808V0X : 73h
K9S5608V0X : 75h
Figure 14. RESET Operation
Table 4. Device Status
After Power-up
After Reset
Operation Mode
Read 1
Waiting for next command
FFh
I/O
0
~
7
R/B
t
RST
RESET
The device offers a reset feature, executed by writing FFh to the command register. When the device is in Busy state during random
read, program or erase mode, the reset operation will abort these operations. The contents of memory cells being altered are no
longer valid, as the data will be partially programmed or erased. The command register is cleared to wait for the next command, and
the Status Register is cleared to value C0h when WP is high. Refer to Table 4 for device status after reset operation. If the device is
already in reset state a new reset command will not be accepted by the command register. The R/B pin transitions to low for tRST
after the Reset command is written. Reset command is not necessary for normal operation. Refer to Figure 14 below.
Figure 13. Read ID Operation
K9S2808V0C/B
29
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
V
CC
R/B
open drain output
Device
GND
where I
L
is the sum of the input currents of all devices tied to the R/B pin.
Rp
t
r
,
t
f

[
s
]
I
b
u
s
y

[
A
]
Rp(ohm)
Figure 15. Rp vs tr ,tf & Rp vs ibusy
Ibusy
tr
Rp value guidance
Rp(max) is determined by maximum permissible limit of tr
ibusy
Rp(min) =
V
CC
(Max.) - V
OL
(Max.)
I
OL
+
I
L
=
3.2V
8mA
+
I
L
Busy
Ready Vcc
@ Vcc = 3.3V, Ta = 25
C , C
L
= 100pF
2.0V
tf
tr
1K
2K
3K
4K
100n
200n
300n
3m
2m
1m
96
tf
189
290
381
4.2
4.2
4.2
4.2
3.3
1.65
1.1
0.825
0.8V
READY/BUSY
The device has a R/B output that provides a hardware method of indicating the completion of a page program, erase and random
read operations. The R/B pin is normally high but transitions to low after program or erase command is written to the command regis-
ter or random read is started after address loading. It returns to high when the internal controller has finished the operation. The pin is
an open-drain driver thereby allowing two or more R/B outputs to be Or-tied. Because pull-up resistor value is related to tr(R/B) and
current drain during busy(ibusy) , an appropriate value can be obtained with the following reference chart(Figure 15). Its value can be
determined by the following guidance.
K9S2808V0C/B
30
SmartMedia
TM
K9S5608V0C/B
K9S6408V0C/B
Data Protection & Power up Sequence
The device is designed to offer protection from any involuntary program/erase during power-transitions. An internal voltage detector
disables all functions whenever Vcc is below about 2V. WP pin provides hardware protection and is recommended to be kept at V
IL
during power-up and power-down as shown in Figure 16. The two step command sequence for program/erase provides additional
software protection.
Figure 16. AC Waveforms for Power Transition
V
CC
WP
High
~ 2.5V
~ 2.5V
WE
1
s
SmartMedia Dimensions
31
SmartMedia
TM
DIMENSIONS
Unit:mm
0.15
0.05
22 PAD SOLID STATE FLOPPY DISK CARD (3.3V)
2
7
.
5
2
2
.
1
(
M
a
x
)
SOLID STATE PRODUCT OUTLINE
Contact Area
0.76
0.08
(+0.1mm package body surface)
1.5
0.1
27.0
0.5mm Chamfer
(3.3V Card)
4.2(Min)
5.0
33.0
0.2
45.0
0.1
4
.
5
(
M
i
n
)
37.0
0.1
5.0
0.2
Index Label Area
10.0
0.2
Write Protect Area
v
c
c
C
E
R
E
R
/
B
G
N
D
I
/
O
7
I
/
O
6
I
/
O
5
I
/
O
4
v
c
c
v
S
S
C
L
E
A
L
E
W
E
W
P
I
/
O
0
I
/
O
1
I
/
O
2
I
/
O
3
v
S
S
1
2
.
7
0
0
6.500
7.900
8.650
1
0
.
1
6
0
7
.
6
2
0
5
.
0
8
0
2
.
5
4
0
0
.
0
0
0
1
2
.
7
0
0
6.500
7.900
8.650
1
0
.
1
6
0
7
.
6
2
0
5
.
0
8
0
2
.
5
4
0
0
.
0
0
0
12
2.140 TYP
0.400 TYP
0.000
11
22
1
L
V
D