3UHOLPLQDU\
CS8954
General Purpose 8051 MCU 64K Flash Type with ISP
Myson Century, Inc.
Taiwan:
No. 2, Industry East Rd. III,
Science-Based Industrial Park, Hsin-Chu, Taiwan
Tel: 886-3-5784866 Fax: 886-3-5784349
sales@myson.com.tw
www.myson.com.tw
Rev. 0.4 April 2003
page 1 of 21
USA:
4020 Moorpark Avenue Suite 115
San Jose, CA, 95117
Tel: 408-243-8388 Fax: 408-243-3188
GENERAL DESCRIPTIONS
The CS8954 micro-controller is an 8051 CPU core
embedded device especially tailored for consumer
and/or general purpose applications. It includes an
8051 CPU core, 768-byte SRAM, 4 channels of 6-bit
ADC, 6 channels of PWM DAC, and a 64K-byte
internal program Flash-ROM memory in 40-pin PDIP,
44-pin PLCC or PQFP package.
FEATURES
8051 core, 12MHz operating frequency with
single/double CPU clock option
0.35um process
3.3V power supply
768-byte RAM
64K-byte program Flash memory
Maximum 6 channels of PWM DAC
Watchdog timer with programmable interval
Single/double frequency clock output
Hardware In system programming (ISP) without
boot code
Two external interrupts
Maximum 4 channels of 6-bit ADC
Flash-ROM code protection selection
40-pin PDIP, 44-pin PLCC or PQFP package
BLOCK DIAGRAM
AUXRAM
P0.0-7
P2.0-3
RD
WR
ALE
INT1
8051
CORE
P1.0-7
P3.0-2
P3.4
RST
X1
X2
ADC
AD0-3
PWM DAC
DA0-5
XFR
P0.0-7
P2.0-7
RD
WR
ALE
INT1
P6.0-7
P5.0-6
AUX
I/O
P7.6-7
CKO
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