W77C516 Datasheet (Winbond) - 8-BIT Microcontroller

W77C516, 8-BIT Microcontroller

The W77C516 is a fast 8051 compatible microcontroller with a redesigned processor core without wasted clock and memory cycles.

As a result, it executes every 8051 instruction faster than the original 8051 for the same crystal speed.

Typically, the instruction executing time of W77C516 is 1.5 to 3 ti

W77C516 Features

* 8-bit CMOS microcontroller

* High speed architecture of 4 clocks/machine cycle runs up to 40 MHz

* Pin compatible with standard 80C52

* Instruction-set compatible with MCS-51

* 64KB on-chip Mask-ROM

* Four 8-bit I/O Ports

* One extra 4-bit I/