MLC650A 8-bit micro-controller with 512 dots LCD driver Features • 65C02-base single chip 8-bit micro-controller • Operating voltage: 3.6V to 5.5V • Memory : ♦ Program ROM : 224K Bytes ♦ Data RAM : 256 Bytes ♦ LCD display RAM : 64 Bytes • 32 input/output pins: ♦ 24 I/O pins (P0, P1 and P2) for key input with wak-up and interrupt function ♦ 2 I/O pins (P3.0, P3.1) can switch as sub-oscillator external connection pins ♦ fixed 3.0V VLCD for LCD driver • Two current DAC output for voice synthesizer • Dual-channel melody with programmable envelope • Programmable sample rate for voice/melody function • Three re-loadable 16-bit timers • One serial input port built in • Build-in dual oscillation circuit: ♦ oscillator 6 output pins (P3.2~P3.7) can switch as LCD common pins (COM15~COM11) • LCD driver output: ♦ Max 32 segment × 16 common ♦ 1/10 or 1/16 duty 1/5 bias driving mode ♦ Build-in voltage regulator to generate Ring oscillator up to 6MHz for main ♦ 32768Hz crystal oscillator for sub-oscillator ♦ Single or dual clock operation selectable by control register • Build-in battery low detector circuit Application Field Hand-held LCD game Education toy Toy piano with LCD driver 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. 2002 All rights reserved. 2002/11 version A2 MEGAWIN General Description The MLC650A is performance 8-bit a low cost, micro-controller high two build-in oscillators to compose dual or of single clock mode. User can arrange the MEGAWIN, which integrate an 8-bit pipeline clock mode to minimize the power CPU core, ROM, RAM, timers, LCD driver, consumption. It is suitable for hand-held I/O ports, D/A and system control circuits. LCD game, education toy controller, LCD The ROM can store voice, melody, data toy controllers, and other products. table and program. MLC650A can provide 2 MLC650A Technical Summary MEGAWIN