4 Bit Microcontroller

The W742S81A is a high-performance 4-bit Microcontroller (C) that provides an LCD Driver The device contains a 4-bit ALU, two 8-bit Timers two dividers (for two oscillators) in dual-clock operation, a 40 4 LCD Driver six 4-bit I/O ports (including 1 output port for LED driving), and one channel DTMF generator. There are also five interrupt sources and 16-levels subroutine nesting for interrupt applications. The W742S81A operates on very low current and has two power reduction modes, that is the dual-clock slow operation and STOP mode, which help to minimize power dissipation. By Winbond Electronics Corp America
W742S81A 's PackagesW742S81A 's pdf datasheet

W742S81A Pinout, Pinouts
W742S81A pinout,Pin out
This is one package pinout of W742S81A,If you need more pinouts please download W742S81A's pdf datasheet.

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