SM8958B Datasheet, PDF (7/49 Pages) SyncMOS Technologies,Inc – 256 bytes SRAM as standard 8052

Block Diagram
SM8958B
8-Bit Micro-controller
32KB Flash
& 1KB RAM embedded
P2.0 ~ P2.7
P0.0 ~ P0.7
Port2 Driver
Port0 Driver
RAM ADDR
Register
RAM256
Port2 Latch
Port0 Latch
B Register
ACC
Stack Pointer
TMP2
TMP1
ALU
PSW
WDT
Timer0/1
Timer2
UART
#PSEN
ALE
#EA
RESET
Control
Unit
Port1 Latch
Port3 Latch
Port4 Latch
Port1 Driver
Port3 Driver
Port4 Driver
XTAL1
XTAL2
P1.0 ~ P1.7
P3.0 ~ P3.7
P4.0 ~ P4.3
Flash ROM
Address
Generator
Program
Counter
DPTR
AUXRAM
(768 byte)
TWSI
( I2C )
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M085
Ver D SM8958B 08/07/2015
-7-