GPL87108A数据手册Generalplus中文资料规格书

描述 Description

GPL87108A, a CMOS 8-bit microprocessor by Generalplus, offers one of the highest cost/performance ratio LCD integrated circuits in the industry, equipping RAM, ROM, I/Os, an interrupt controller, and an automatic display controller/driver in a small device.  Its extraordinary features include capability of operating in low voltage range from 1.2V ~ 3.6V as well as under a low power condition that is suitable for solar cell environment.  It also builds in an internal power switch for a two-way power source automatically and facilitates using solar cell and battery co-operation in applications.  This device is applicable for products such as low power calculator and products requiring either only one solar cell or one battery application, or even two-way power source.

特性 Features

• Built-in 8-bit processor
• 2432-byte SRAM
• 64K-byte ROM(include 2KB test code ROM size)
• 88-byte DPRAM
• Built-in 225K/500K/1000K/1800KHz RC oscillator for system operation

• Adjustable CPU clock speed: 1, 1/2, 1/4, 1/8, 1/16 for ROSC
• 1000K/1800KHz CPU clock speed can only be used at operating voltage 1.8V ~ 3.6V
• Built-in 30.72kHz RC oscillator & 32768Hz Crystal oscillator circuit for timebase
• Low operating voltage: 1.2 V – 1.8 V@0～70℃                                   
                        1.8 V – 3.6 V@-20～70℃
• Low standby current, ISTBY < 1uA @3.6V, 25℃
• 18 general I/O pins.

• PD[5:0](PD[5:3] share with SEG[57:59]; PD[1:0] share with 2 buzzers)
• PC[3:0](shared with SEG[53:56])
• PE[7:0]
• Built-in  2 x  RFC function (PD2 used as input, PD[5:3] used as output)
• LCD configurations: 11 coms x 60 segs (MAX) , 3x60, 4x60, 5x60, 6x60, 8x60, 9x60, 10x60, 4x64
• LCD 1/3 ,1/4 bias; 1/3, 1/4, 1/5, 1/6, 1/8, 1/9, 1/10, 1/11 duty
• One 16-bit reloadable timer/counter
• Watchdog mode (~2 seconds)
• Six interrupt sources:
   TMBB, TMBA, 128Hz, 2KHz, Timer, EXT(PD2)
• Power down mode
   Wake-up sources: key input, TMBB, TMBA,128Hz, Timer
• Built_in power switch for two way power source

• 15uA @ 3.6V, FCPU = 225KHz for operating mode
• 3 uA @ 3.6V, FCPU = 225KHz for halt mode
• I stby < 1uA @ 1.5V
• Built_in internal regulator for LCD operation, 5-level contrast control
• Built_in internal regulator for system operation
• Built_in Low voltage reset to prevent unusual system operation low voltage
Note1: TMBB: 4KHz, 1KHz, 128Hz, 64Hz, 32Hz, 16Hz, 8Hz or 4HzNote2: TMBA: 2Hz or 1Hz