描述 Description

GPL87220A, a special designed 8-bit CMOS microprocessor, offers one of the best cost/performance ratio LCD controllers in the industry.? It embeds RAM, ROM, I/Os, an interrupt controller, and an automatic display controller/driver in a small device. Its extraordinary features is the capability of operating in low voltage range from 1.1V ~ 3.6V and also operating under low power. ?This device is applicable for many application fields such as low power watch and other LCD related products.

特性 Features

? Built-in 8-bit processor
? 6048/2464/2464 -byte SRAM
? 160K/128K/64K -byte ROM(include 2KB test code ROM size)
? 384/256/192 -byte DPRAM
? Built-in 225k/500k/1000k/1800k/4000KHz RC oscillator for system operation
- adjustable CPU clock speed : 1, 1/2, 1/4, 1/8, 1/16 for Rosc- 1000k/1800k/4000kHz CPU clock speed only can be used at operation voltage 1.8V~3.6V
? Built-in 30.72kHz RC oscillator & 32768 Crystal oscillator circuit for timebase.
? Low operating voltage: 1.1 V – 3.6 V
? Low standby current, ISTBY < 1uA @3.6V@25℃
? 36 general I/O pins.
PA[3:0] (PA[3:2]shared with SEG[94:95] @GPL87220A)PB[7:0] (shared with COM[16:23])PC[7:0] (shared with COM[24:31] @GPL87220A/GPL87216A)PD[7:0] (PD6 can be used as EXT2INT, PD2 can be used as EXTINT, PD[1:0] shared with 2 Buzzer)PE[7:0]- Built-in 2x RFC function ( PD2 or PE3 as input, PD[5:3] or PE[2:0] as output)
? LCD configurations:
? 32 coms x 96 segs (MAX), 24X94, 16X94, 11X64, 10X64, 9X64, 8X64, 6X64, 5X64, 4X64, 3X64, 2X64 @GPL87220A;
? 32 coms x 64 segs (MAX), 24X64, 16X64, 11X64, 10X64, 9X64, 8X64, 6X64, 5X64, 4X64, 3X64, 2X64 @GPL87216A;
? 24 coms x 64 segs (MAX), 16X64, 11X64, 10X64, 9X64, 8X64, 6X64, 5X64, 4X64, 3X64, 2X64 @GPL87208A;
? LCD 1/2, 1/3, 1/4, 1/5 bias; 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/9, 1/10, 1/11, 1/16, 1/24, 1/32 duty
? One 16-bit reloadable timer/counter(Timer0), Two 8-bit reloadable timer/counter（Timer1,Timer2）
? Serial Peripheral Interface(SPI)
-?? SPI CSN/SCK/SDI/SDO pin shared with SEG[93:90]
? 4-channel PWMIO output
-?? PWM output pin shared with PA[3:0]
? EL light driver
-?? ELC, ELP pin share with PA[1:0]
? Watchdog mode (~2 sec)
? 12 interrupt sources
? IRQ controller-? 2Khz for RTC-? 128Hz-? TMBB（4Hz/8Hz/16Hz/32Hz/64Hz/128Hz/1KHz/4KHz）-? TMBA（1Hz/2Hz）-? EXTINT(PD2)-? EXT2INT(PD6)-? Timer0 overflow-? Timer1 overflow-? Timer2 overflow-? Low battery voltage detection (1.2V/2.0V/2.2V/2.5V)-? DMA-? SPI
? Power down mode
? (wake-up source: key input, TMBB, TMBA, 128Hz, Timer0, Timer1, Timer2)
? Low power consumption:
? 30uA @ 1.5V, Fcpu = 225KHz for operating mode
? 8 uA @ 1.5V, Fcpu = 225KHz for halt mode
? I stby < 1uA @ 1.5V
? Built_in internal regulator for LCD operation, 16 level contrast control
? Built_in internal regulator for system operation
? Built_in 1.2V/2.0V/2.2V/2.5V low voltage detector
? Built_in Low voltage reset to avoid system runaway at low voltage