Products - GPL873P12A (OTP)

General Description

GPL873P12A, a CMOS 8-bit microprocessor, combines RAM, External ROM, I/Os, an interrupt controller, and an automatic display controller/driver in a small device.  The extraordinary features allow system to operate under a voltage range from 1.1V ~ 1.8V. This device is applicable for many application fields such as low power watch and other LCD related products.

Features

• 8-bit processor
• 256-byte SRAM
• 12K-byte OTP ROM
• 32-byte DPRAM
• 1000KHz RC oscillator for system operation

- adjustable CPU clock speed: 1, 1/2, 1/4, 1/8, 1/16 for ROSC

• 32768Hz RC oscillator & 32768Hz Crystal oscillator circuit for timebase function
• Low operating voltage: 1.1 V – 1.8 V
• Low standby current, I_STBY < 1uA @1.5V@25℃
• 27 general I/O pins.

PB7 (used as RFCIN0 or EXTIN0)

PB6 (shared with SEG26)

PB[5:4] (used as RFCOUTIN0)

PC[7:6] (shared with [X32I, X32O])

PC[5:4] (shared with /SEG[25:24])

PC[3:2] (used as Buzzer out)

PD[7:0] (shared with SEG[15:8])

PE[7:0] (shared with SEG[23:16])

PF0 (shared with SEG27)

• RFC function (PB7 as input, PB[6:4] as output)
• LCD configurations:
• 6 coms x 28 segs (MAX),
• LCD 1/2, 1/3 bias; 1/3, 1/4, 1/5, 1/6 duty
• Two 16-bit reloadable timer/counter(Timer0/1),
• Watchdog mode (~2 sec)
• 8 interrupt sources

  IRQ controller

-  2Khz

-  128Hz

-  TMBB（64Hz/128Hz/512Hz/1024Hz/2046Hz/4096Hz）

-  TMBA（0.5Hz/1Hz/2Hz/4Hz/8Hz/16Hz/32Hz/64Hz/）

-  EXTINT0(PB7)

-  Timer0 overflow

-  Timer1 overflow

-  Key input

• Power down mode

  (wakeup sources: key input, TMBB, TMBA, 2KHz, 128Hz, Timer0, Timer1, EXTINT0)

• Low power consumption:
• 200uA @ 1.5V, Fcpu = 1MHz for operating mode
• Istby < 1uA @1.5V
• Internal regulator for LCD operation
• 25V/1.35V low voltage detector
• Low voltage reset to prevent system runaway at low voltage.
• Buzzer output