器件名称: W742C811
功能描述: 4-BIT MICROCONTROLLER
文件大小: 23.36KB 共2页
简 介:W742C(E)811 4-BIT MICROCONTROLLER
1. GENERAL DESCRIPTION
The W742C(E)811 [W742C811 is mask type, W742E811 is MTP(Multiple Time Program) type] is a high-performance 4-bit microcontroller (C) that built in 640-dot LCD driver. The device contains a 4-bit ALU, two 8-bit timers, two dividers in dual-clock operation, a 40 × 16 LCD driver, ten 4-bit I/O ports (including 1 output port for LED driving), multiple frequency output, and one channel DTMF generator. There are also eleven interrupt sources and 16-level stack buffer. The W742C(E)811 operates on very low current and has three power reduction modes, hold mode, stop mode and slow mode, which help to minimize power dissipation.
2. FEATURES
Operating
voltage - 2.4V - 6.0V for mask type - 2.4V - 4.8V for MTP type Dual-clock operation Main oscillator - 3.58MHz or 400khz can be selected by code option crystal or RC oscillator can be selected by code option Sub-oscillator Connect to 32.768KHz crystal only Memory 16384(16K) x 16 bit program ROM (including 64K x 4 bit look-up table) 5120(5K) x 4 bit data RAM (including 16 nibbles x 16 pages working registers)
40 x 16 LCD data RAM 40 input/output pins Port for input only: 3 ports/12 pins Input/output ports: 3 ports/12 pins High sink current output port for LED driving: 1 port /4 pins Port for output only: 1 port/ 4 pins DC output port: 2 ports/ 8 pins (selected by code option) Power-down mode Hold mode: no operation (main oscillator and sub-oscillator still operate)……
