2005 Fairchild Semiconductor Corporation
DS500494
www.fairchildsemi.com
July 2001
Revised January 2005
NC7NZ34 T
i
nyLo
gic
UHS T
r
i
p
le Buff
er
NC7NZ34
TinyLogic
UHS Triple Buffer
General Description
The NC7NZ34 is a triple buffer from Fairchild's Ultra High
Speed Series of TinyLogic
in the space saving US8 pack-
age. The device is fabricated with advanced CMOS tech-
nology to achieve ultra high speed with high output drive
while maintaining low static power dissipation over a very
broad V
CC
operating range. The device is specified to
operate over the 1.65V to 5.5V V
CC
range. The inputs and
outputs are high impedance when V
CC
is 0V. Inputs toler-
ate voltages up to 7V independent of V
CC
operating volt-
age.
Features
s
Space saving US8 surface mount package
s
MicroPak
Pb-Free leadless package
s
Ultra High Speed: t
PD
2.4 ns Typ into 50 pF at 5V V
CC
s
High Output Drive:
24 mA at 3V V
CC
s
Broad V
CC
Operating Range: 1.65V to 5.5V
s
Power down high impedance inputs/outputs
s
Overvoltage tolerant inputs facilitate 5V to 3V translation
s
Patented noise/EMI reduction circuitry implemented
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
Logic Symbol
IEEE/IEC
Pin Descriptions
Function Table
Y
=
A
H
=
HIGH Logic Level
L
=
LOW Logic Level
Connection Diagrams
(Top View)
Pin One Orientation Diagram
AAA represents Product Code Top Mark - see ordering code
Note: Orientation of Top Mark determines Pin One location. Read the top
product code mark left to right, Pin One is the lower left pin (see diagram).
Pad Assignments for MicroPak
(Top Thru View)
TinyLogic
is a registered trademark of Fairchild Semiconductor Corporation.
MicroPak
is a trademark of Fairchild Semiconductor Corporation.
Product
Package Description
Supplied As
Order
Package
Code
Number
Number
Top Mark
NC7NZ34K8X
MAB08A
7NZ34
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
NC7NZ34L8X
MAC08A
P9
Pb-Free 8-Lead MicroPak, 1.6 mm Wide
5k Units on Tape and Reel
Pin Names
Description
A
1
, A
2
, A
3
Data Inputs
Y
1
, Y
2
, Y
3
Output
Input
Output
A
Y
L
L
H
H
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2
N
C
7NZ34
Absolute Maximum Ratings
(Note 1)
Recommended Operating
Conditions
(Note 2)
Note 1: Absolute maximum ratings are DC values beyond which the device
may be damaged or have its useful life impaired. The datasheet specifica-
tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari-
ables. Fairchild does not recommend operation outside datasheet specifi-
cations.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Supply Voltage (V
CC
)
-
0.5V to
+
7.0V
DC Input Voltage (V
IN
)
-
0.5V to
+
7.0V
DC Output Voltage (V
OUT
)
-
0.5V to
+
7.0V
DC Input Diode Current (I
IK
)
V
IN
<
0V
-
50 mA
DC Output Diode Current (I
OK
)
V
OUT
<
0V
-
50 mA
DC Output Source/Sink Current (I
OUT
)
50 mA
DC V
CC
/GND Current (I
CC
/I
GND
)
100 mA
Storage Temperature (T
STG
)
-
65
C to
+
150
C
Junction Temperature under Bias (T
J
)
150
C
Junction Lead Temperature (T
L
)
(Soldering, 10 seconds)
260
C
Power Dissipation (P
D
) @
+
85
C
250 mW
Supply Voltage
Operating (V
CC
)
1.65V to 5.5V
Data Retention
1.5V to 5.5V
Input Voltage (V
IN
)
0V to 5.5V
Output Voltage (V
OUT
)
0V to V
CC
Input Rise and Fall Time (t
r
, t
f
)
V
CC
=
1.8V, 2.5V
0.2V
0 to 20 ns/V
V
CC
=
3.3V
0.3V
0 to 10 ns/V
V
CC
=
5.5V
0.5V
0 to 5 ns/V
Operating Temperature (T
A
)
-
40
C to
+
85
C
Thermal Resistance (
JA
)
250
C/W
Symbol
Parameter
V
CC
T
A
=
+
25
C
T
A
=
-
40
C to
+
85
C
Units
Conditions
(V)
Min
Typ
Max
Min
Max
V
IH
HIGH Level Control
1.8
0.15
0.75 V
CC
0.75 V
CC
V
Input Voltage
2.3 to 5.5
0.7 V
CC
0.7 V
CC
V
IL
LOW Level Control
1.8
0.15
0.25 V
CC
0.25 V
CC
V
Input Voltage
2.3 to 5.5
0.3 V
CC
0.3 V
CC
V
OH
HIGH Level Control
1.65
1.55
1.65
1.55
V
V
IN
=
V
IH
I
OH
=
-
100
A
Output Voltage
2.3
2.2
2.3
2.2
3.0
2.9
3.0
2.9
4.5
4.4
4.5
4.4
1.65
1.29
1.52
1.29
I
OH
=
-
4 mA
2.3
1.9
2.14
1.9
I
OH
=
-
8 mA
3.0
2.4
2.75
2.4
I
OH
=
-
16 mA
3.0
2.3
2.62
2.3
I
OH
=
-
24 mA
4.5
3.8
4.13
3.8
I
OH
=
-
32 mA
V
OL
LOW Level Control
1.65
0.0
0.1
0.1
V
V
IN
=
V
IL
I
OL
=
100
A
Output Voltage
2.3
0.0
0.1
0.1
3.0
0.0
0.1
0.1
4.5
0.0
0.1
0.1
1.65
0.08
0.24
0.24
I
OL
=
4
mA
2.3
0.10
0.3
0.3
I
OL
=
8
mA
3.0
0.16
0.4
0.4
I
OL
=
16 mA
3.0
0.24
0.55
0.55
I
OL
=
24 mA
4.5
0.25
0.55
0.55
I
OL
=
32 mA
I
IN
Input Leakage Current
0 to 5.5
0.1
1.0
A
0
V
IN
5.5V
I
OFF
Power Off Leakage Current
0.0
1.0
10
A
V
IN
or V
OUT
=
5.5V
I
CC
Quiescent Supply Current
1.65 to 5.5
1.0
10
A
V
IN
=
5.5V, GND
3
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NC7NZ34
AC Electrical Characteristics
Note 3: C
PD
is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
CCD
) at no output
loading and operating at 50% duty cycle. (See Figure 2.) C
PD
is related to I
CCD
dynamic operating current by the expression:
I
CCD
=
(C
PD
)(V
CC
)(f
IN
)
+
(I
CC
static).
Dynamic Switching Characteristics
AC Loading and Waveforms
C
L
includes load and stray capacitance
Input PRR
=
1.0 MHz; t
W
=
500 ns
FIGURE 1. AC Test Circuit
Input
=
AC Waveform; t
r
=
t
f
=
1.8 ns;
PRR
=
10 MHz; Duty Cycle
=
50%
FIGURE 2. I
CCD
Test Circuit
FIGURE 3. AC Waveforms
Symbol
Parameter
V
CC
T
A
=
+
25
C
T
A
=
-
40
C to
+
85
C
Units
Conditions
Figure
(V)
Min
Typ
Max
Min
Max
Number
t
PLH
Propagation Delay
1.8
0.15
1.8
4.6
8.0
1.8
8.8
ns
Figures
1, 3
t
PHL
2.5
0.2
1.0
3.0
5.2
1.0
5.8
C
L
=
15 pF,
3.3
0.3
0.8
2.3
3.6
0.8
4.0
R
L
=
1 M
5.0
0.5
0.5
1.8
2.9
0.5
3.2
t
PLH
Propagation Delay
3.3
0.3
1.2
3.0
4.6
1.2
5.1
ns
C
L
=
50 pF,
Figures
1, 3
t
PHL
5.0
0.5
0.8
2.4
3.8
0.8
4.2
R
L
=
500
C
IN
Input Capacitance
0
2.5
pF
C
PD
Power Dissipation
3.3
9
pF
(Note 3)
Figure 2
Capacitance
5.0
11
Symbol
Parameter
Conditions
V
CC
T
A
=
25
C
Unit
(V)
Typical
V
OLP
Quiet Output Dynamic Peak V
OL
C
L
=
50pF, V
IH
=
5.0V, V
IL
=
0V
5.0
0.8
V
V
OLV
Quiet Output Dynamic Valley V
OL
C
L
=
50pF, V
IH
=
5.0V, V
IL
=
0V
5.0
-
0.8
V
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4
N
C
7NZ34
Tape and Reel Specification
TAPE FORMAT for US8
TAPE DIMENSIONS inches (millimeters)
TAPE FORMAT for MicroPak
TAPE DIMENSIONS inches (millimeters)
Package
Tape
Number
Cavity
Cover Tape
Designator
Section
Cavities
Status
Status
Leader (Start End)
125 (typ)
Empty
Sealed
K8X
Carrier
3000
Filled
Sealed
Trailer (Hub End)
75 (typ)
Empty
Sealed
Package
Tape
Number
Cavity
Cover Tape
Designator
Section
Cavities
Status
Status
Leader (Start End)
125 (typ)
Empty
Sealed
K8X
Carrier
3000
Filled
Sealed
Trailer (Hub End)
75 (typ)
Empty
Sealed
5
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NC7NZ34
Tape and Reel Specification
(Continued)
REEL DIMENSIONS inches (millimeters)
Tape
Size
A
B
C
D
N
W1
W2
W3
8 mm
7.0
0.059
0.512
0.795
2.165
0.331
+
0.059/
-
0.000
0.567
W1
+
0.078/
-
0.039
(177.8)
(1.50)
(13.00)
(20.20)
(55.00)
(8.40
+
1.50/
-
0.00)
(14.40)
(W1
+
2.00/
-
1.00)
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6
N
C
7NZ34
Physical Dimensions
inches (millimeters) unless otherwise noted
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
Package Number MAB08A
7
www.fairchildsemi.com
NC7NZ34 T
i
nyLo
gic
UHS T
r
i
p
le Buff
er
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
Pb-Free 8-Lead MicroPak, 1.6 mm Wide
Package Number MAC08A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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