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Products - GPL191B3



GPL191B3


Working Voltage (V)Max.Speed (MHz)ROM (Byte)RAM (Byte)I/OCOMxSEG OptionBiasDutyAudio ChannelAudio Output32K OSC.SPI/UARTWDTLVD/LVR
2.4~5.54256K704208X64, 12X64, 16X641/4, 1/51/8, 1/12, 1/162PWMROSC/X'TAL- / √√ / √



General Description

The GPL191B3 is an 8-bit CMOS microprocessor containing 704 bytes working RAM, 256K bytes ROM, 12 I/Os, interrupt/wakeup controller, UART for serial communication, and automatic display controller/driver for LCD. It has one PWM driver with two audio channel outputs. Attractive sound effects can easily be generated. Its large ROM area can be used to store both program and audio data (speech duration is approx. 80 seconds at a 6KHz sampling rate using 4-bit ADPCM). The built-in UART speeds up data transmission between two chips. Furthermore, a SLEEP (power-down) feature is also built-in to reduce power consumption. The GPL191B2/B3 is designed with state-of-the-art technology to fulfill LCD application requirements, especially hand-held products.


Features

  • Built-in 8-bit processor
    • 704 bytes SRAM
    • 256K bytes ROM
    • Max. Operating Speed: 4.0MHz @ 2.4V
    • CPU clock is software programmable, can be 1/2, 1/4, 1/8 or 1/16 R-oscillator clock frequency
    • Key wake-up function
    • Provides 8 interrupt sources
  • Asynchronous serial interface (UART)
    • Supports bit rate up to 115.2 Kbps
  • Programmable LCD Driver
    • Up to 64 segments, up to 16 commons, maximum 1024 dots
    • 1/4 or 1/5 bias capability
    • 1/8, 1/12 or 1/16 duty
    • 128 bytes dedicated LCD RAM
    • Built-in voltage doubler and voltage regulator to generate VLCD for LCD driver
    • 16-level VLCD adjustable
  • Power saving SLEEP mode (wakeup source: key input, 2Hz, 16Hz, and timer)
  • Low Voltage Detector
    • 2.6V and 2.4V detection
  • Wide Operating Voltage:
    • 2.4V - 3.6V
    • 3.6V - 5.5V
  • Peripherals
    • 12 I/O pins shared with LCD segments (mask option)
    • 4 I/O pins (IOEF3 - 0)
    • Extra two general I/O pins (IOEF5 - 4) or 2 UART pins (TXD - RXD) (mask option)
    • Extra 2 I/O pins (IOEF7 - 6) if LCD is 1/8 or 1/12 duty (mask option)
    • Built-in 32.768KHz oscillator circuit for real time clock Function
    • Built-in R-oscillator (only one resistor required)
    • Internal time base generator
    • Two 16-bit reloadable timer/counters(TM0 & TM1)
    • 2-channel 8-bit audio decoders
    • One PWM output (can drive speaker or buzzer directly)
    • Watchdog Timer for reliable operation
  • Low-power consumption

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