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| 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 x 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 |
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