Products - GPLB38C

General Description

The GPLB38C, an 8-bit CMOS microprocessor, contains 1216 bytes working RAM, 512K bytes ROM, 12 I/Os, interrupt/wakeup controller, and automatic display controller/driver for LCD. It also features one PWM driver with two audio channels to produce attractive sound effects easily. Its large ROM area can be used to store both program and audio data. Furthermore, a SLEEP (power-down) function is also built in to extend power life. The GPLB38C is designed with GENERALPLUS state-of-the-art technology to fulfill LCD application needs, especially for hand-held products.

Features

• Built in 8-bit processor
  • 1216 bytes SRAM
  • 512K bytes ROM
  • Max. operating speed: 8.0MHz @ 2.4V – 5.5V
  • Programmable CPU clock: /1, /2, /4, /8, /16, /32, /64 of ROSC Frequency.
  • 5 wake-up sources
  • 5 interrupt sources
• Key scan function
  • SEG[15:0] can be used to send key scan output
• Programmable LCD driver
  • 64 segments, 16 commons, maximum 1024 dots
  • 1/5 bias; 1/16 duty capability
  • 128 bytes dedicated LCD RAM
  • Built-in voltage regulator to generate VLCD for LCD driver
  • 26-level contrast control (2.98V - 5.75V)
• Power saving SLEEP mode
• Low Voltage Detector
  • 6-level 2.9V - 2.4V detection
• Low power consumption:
  • 1.2mA typical @ 3.0V, FCPU = 2.0MHz, FOSC = 8.0MHz
  • 30uA typical halt current @ 3.0V
  • <1uA typical standby current @ 3.0V
  • Watchdog timer for reliable operation
• Peripherals
  • Dedicated I/Os: PA[0:7], PC[4:7]
  • 32.768KHz oscillator circuit for RTC
  • Internal RC-oscillator (no resistor needed)
  • Two 16-bit reloadable timer/counters
  • 2-channel PWM audio outputs
  • Watchdog Timer for reliable operation
• Wide operating voltage range:
  • 2.4V – 5.5V
• Built-in Regulator
  • Internal built-in regulator to supply core power(3.3V,for 3-battery application). Also it can turn off internal built-in regulator, and use External 3.6V power to supply core power(for 2-battery application.)