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)