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August 2000
Specifications subject to change without notice,contact your sales representatives for the most recent information.
3/16
Ver 1.0
PID 2958 08/00
SyncMOS Technologies Inc.
SM2958
Timer 2
Timer 1
Timer 0
Stack
Pointer
Decoder &
Register
256
bytes RAM
Block Diagram
Reset
Circuit
Power
Circuit
Interrupt
Circuit
Timing
Generator
XTAL2
XTAL1
#EA
ALE
#PSEN
RES
Vdd
Vss
to pertinent blocks
to whole chip
to pertinent blocks
to whole system
Acc
Buffer2
Buffer1
ALU
PSW
Buffer
DPTR
PC
Incrementer
Program
Counter
Register
32K
bytes
Flash
Memory
Port 0
Latch
Port 1
Latch
Port 2
Latch
Port 3
Latch
Port 0
Driver & Mux
Port 1
Driver & Mux
Port 2
Driver & Mux
Port 3
Driver & Mux
8
8
8
8
Instruction
Register