Description
The MVI MSU2051 series product is an 8 - bit single chip microcontroller. 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 64 K byte external memory either for program or for data or mixed.
A serial input / output port is provided for I/O expansion, Inter - processor communications, and full duplex UART.

Features
■ Working voltage : L series at 2.7V through 4.5V while S & C series at 4.5 V through 5.5 V
■ General 80C51 family compatible
■ 64 K byte External Memory Space
■ 4 K byte ROM
■ 128 byte data RAM
■ Two 16 bit Timers/Counters
■ Four 8-bit I/O ports
■ Full duplex serial channel
■ Bit operation instructions
■ Page free jumps
■ 8 - bit Unsigned Division
■ 8 - bit Unsigned Multiply
■ BCD arithmatic
■ Direct Addressing
■ Indirect Addressing
■ Nested Interrupt
■ Two priority level interrupt
■ A serial I/O port
■ Power save modes: Idle mode and Power down mode
■ Working at 16/25/40 MHz Clock