SyncMOS Technologies Inc.
May 2001
SM89516
Block Diagram
Decoder &
Register
Stack
1024 bytes
RAM
Timer 1
Timer 2
Timer 0
Pointer
Buffer
DPTR
WDT
to pertinent blocks
to whole chip
RES
Reset
Circuit
Acc
Vdd
Vss
PC
Power
Circuit
Incrementer
Buffer2
Buffer1
to pertinent blocks
to whole system
Program
Counter
Interrupt
Circuit
ALU
Register
PSW
XTAL2
XTAL1
#EA
ALE
Timing
Generator
#PSEN
Instruction
Register
64K
bytes
Flash
Memory
Port 2
Latch
Port 4
Latch
Port 3
Latch
Port 1
Latch
Port 0
Latch
Port 2
Port 4
Port 1
Port 0
Driver & Mux
Port 3
Driver & Mux Driver & Mux
Driver & Mux Driver & Mux
8
8
8
4
8
Specifications subject to change without notice,contact your sales representatives for the most recent information.
3/19
Ver 1.3
PID 89516 05/01
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
