Datasheet Summary
72KB LCD CONTROLLER/DRIVER
1. GENERAL DESCRIPTION
The GPL15B1 is a CMOS 8-bit single chip microprocessor which contains RAM, ROM, I/Os, interrupt controller, 8-bit PWM audio output and automatic display controller/driver for LCD. For power saving, a software controllable standby switch is also built-in. This chip is implemented with advanced design and process technology. It is very suitable for LCD type handheld products. The ROM space of this chip can be used to store program or audio data. (The speech data is about 18 seconds at 7KHz sampling rate by using 4bit-ADPCM)
2. BLOCK DIAGRAM
ROSC X32I X32O
8-BIT RISC PROCESSOR
OSC GEN TIME BASE
& INTERRUPT
LOGIC
72K BYTES ROM
128...