器件名称: W541E260
功能描述: 4-BIT FLASH EPROM MICROCONTROLLER
文件大小: 75.91KB 共11页
简 介:Preliminary W541E260
4-BIT FLASH EPROM MICROCONTROLLER
GENERAL DESCRIPTION
The W541E260 is fully compatible with W741E260 in terms of pin assignment and IC function. It is a high-performance 4-bit microcontroller (C) that provides an LCD driver and the flash EEPROM for the program memory. The device contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation, a 32 × 4 LCD driver, and five 4-bit I/O ports (including 1 output port for LED driving). There are also five interrupt sources and a 8-level subroutine nesting for interrupt applications. The W541E260 operates on very low current and has three power reduction modes, hold mode and stop mode in single-clock operation and the dual-clock slow operation, which help to minimize power dissipation. This chip is available for W541C250 and W541C260 bodies, which can be selected by option code. The W541E260 is suitable for end product manufacturer engineering testing and earlier samples before mass production.
FEATURES
Operating voltage: 2.4V to 5.5V (LCD drive voltage: 3.0V, or 4.5V) Crystal/Ceramic oscillator: up to 4 MHz RC oscillator: up to 4 MHz Dual-clock operation is selected by code option Main oscillator
Crystal or RC oscillation circuit can be selected by code option In crystal mode, high-frequency (400 KHz to 4 MHz) or low-frequency (32.768 KHz) oscillation should be selected by code option In RC mode, attention must be paid to the high/low frequency oscillation option, be……
