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W742C81A

Winbond
Part Number W742C81A
Manufacturer Winbond
Description 4-BIT MICROCONTROLLER
Published Apr 17, 2005
Detailed Description Preliminary W742E81A/W742C81A 1. GENERAL DESCRIPTION 4-BIT MICROCONTROLLER The W742E81A/W742C81A is a high-performanc...
Datasheet PDF File W742C81A PDF File

W742C81A
W742C81A

Overview
Preliminary W742E81A/W742C81A 1.
GENERAL DESCRIPTION 4-BIT MICROCONTROLLER The W742E81A/W742C81A is a high-performance 4-bit microcontroller (µC) 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 W742E81A/W742C81A 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.
2.
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