MLC822A

MLC822A 8-Bit micro-controller with 660 dots LCD Driver Features • Single chip 8-bit micro-controller • Operating voltage: 2.4V to 5.5V • Memory : ♦ ♦ ♦ ♦ Internal R-type VLCD divider 10 level programmable frame rate from 56.7Hz to 113.8Hz Program ROM: 48*1024 Bytes Data RAM (stack RAM included) : 3072 Bytes • Two re-loadable 8-bit timers • Two dividers One 14-bit divider with the clock source from sub-oscillator to generate a 2-Hz interrupt One 7-bit divider with the clock source from main oscillator ♦ LCD RAM : 88 Bytes • 10 input/output pins: ♦ ♦ Dedicated I/O pins: P0[5:0] Share pin I/O: ! P0[7:6]/(UART TX, RX) ! P1[0:1]/(SCLK, SDIO) • Build-in dual oscillation circuit: ♦ Ring oscillator up to 5MHz at 3.6V – 5.5V 4MHZ at 2.4V – 3.4V for main oscillator (Fosc) • Half duplex UART function • Build-in Megawin E-flash interface • Dedicated SPK pin for tone output • LCD driver output: ♦ ♦ ♦ 32768Hz crystal oscillator for sub-oscillator (Fx32) Max 60 segment × 11 common 1/11, 1/10, 1/9 duty and 1/4, 1/5 bias driving mode • Build-in 8-level battery-low detector circuit This document contains information on a new product under development by MEGAWIN. MEGAWIN reserves the right to change or discontinue this product without notice.  MEGAWIN Technology Co., Ltd. 2004 All rights reserved. 2003/01/19 version A4 MEGAWIN General Description MLC822A is a cost effective, high performance 8-bit micro-controller of MEGAWIN. It be used to system link with other devices. An e-flash interface is useful for the external memory application. The MLC822A provides a build-in oscillator as clock source. It is suitable for data bank product, hand-held game, toy controllers and other products’ applications. integrates an 8-bit pipeline CPU core, 48KB ROM, 3072B RAM, two 8-bit timers, 660 dots LCD driver, 10 I/O pins and other system control circuits into a single chip. MLC822A build in an UART interface circuit, which could 2 MLC822A Technical Summary MEGAWIN