W742C81A - Winbond

W742C81A 4-BIT MICROCONTROLLER

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 ar.

Features

• Operating voltage: 2.4V−3.8V
• Dual-clock operation or single-clock operation (By option)
• Main-oscillator − Connect to 3.58 MHz crystal or 400 KHz that can be selected by option code − Crystal or RC oscillator can be selected by code option (W742E81A) − Connect to 2 MHz typical RC.