General Description
The SM8951B series product is an 8-bits single chip micro controller with 4KB flash embedded. It provides hardware features and a powerful instruction set, necessary to make it a versatile and cost effective controller for those applications demand up to 32 I/O pins or need up to 4KB flash memory either for program or for data or mixed. To program the flash block, a commercial programmer is cap-able to do it.

Feature
● Working voltage: 3.0V ~ 3.6V For L Version
● 4.5V ~ 5.5V For C Version
● General 8051 family compatible
● 12 clocks per machine cycle
● 4KB internal flash memory
● 128 bytes data RAM
● Two 16 bit timers/counters
● Four 8-bit I/O ports
● Full duplex serial channel
● Bit operation instruction
● Industrial Level
● 8-bit unsigned division
● 8-bit unsigned multiply
● BCD arithmetic
● Direct addressing
● Indirect addressing
● Nested interrupt
● Two priority level interrupt
● A serial I/O port
● Power save modes:
● Idle mode and power down mode
● Code protection function
● Strong Noise immunity
● One watch dog timer (WDT)
● Reduce EMI (inhibit ALE)