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Products - GPLB38P05A


Working Voltage (V)Max. CPU Speed (MHz)ROM (Byte)RAM (Byte)I/OCOMxSEG OptionBiasDutyAudio Output32K OSC.SPI/UARTWDTLVD/LVR
2.0~5.58512K2432+1281216X641/51/16PWMROSC / X'TAL- / -√ / √

General Description

GPLB38P05A, an 8-bit CMOS microprocessor for LCD handheld application, contains 2432 bytes of working RAM, 512K/736K bytes of ROM (varied on different ICs), 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 allows user to store both program and audio data in one place.  In addition, a SLEEP (power-down) function is featured to extend battery life.


  • 8-bit processor with:

─ 2432 bytes SRAM

─ 512K/736K bytes OTP ROM (by body)

─ Maximum operating speed: 8.0MHz @ 2.1V – 5.5V

─ Programmable CPU clock: /1, /2, /4, /8, /16, /32, /64 of IROSC Frequency.

─ Five wakeup sources

─ Five interrupt sources

  • Key scan function

─ SEG[15:0] can be used to send key scan output

  • Programmable LCD driver

─ 64 segments, 16 commons, forming up to 1024 dots

─ 1/5 bias, 1/16 duty capability

─ 128 bytes dedicated LCD RAM

─ Voltage regulator to generate VLCD for LCD driver

─ 26-level contrast control (2.98V - 5.75V)

  • Power saving SLEEP mode
  • Low Voltage Detector

  ─ 8-level 2.9V - 2.2V detection

  • Low power consumption:

─ 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

  ─ Two-channel PWM audio outputs

  ─ Watchdog Timer for reliable operation 

  • Wide operating voltage range:

─ 2.1V – 5.5V

  • Built-in regulator

─ Internal built-in regulator to supply core power.

Confirmation Sheet

GPLB38PXXAV10_cm(epdf).pdf   Copy Link.

Data Sheet

GPLB38PXXAV10_ds.pdf   Copy Link.
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