The GPL169251A, a 16-bit architecture LCD controller product, carries the Sunplus’ newest 16-bit microprocessor, µ’nSP (pronounced as micro-n-SP) and also has LCD driver built-in. The high processing speed assures the µ’nSP™ is capable of handling complex digital signal processes easily and rapidly. The GPL169251A is applicable to the areas of digital sound process. In addition, Liquid Crystal Display (LCD) capability strengthens the GPL169251A to be used in variety of visual applications. The memory capacity includes 4K-word SRAM for system usage and 592-word SRAM for LCD frame buffer and 256K-word flash.

The GPL169251A is capable to provide single-chip solution with built-in driver which supports maximum resolution to 32x74. The USB device function is also supported to provide high-speed interface. Other features include 8 programmable multi-functional I/Os, three 16-bit timers/counters, 32768Hz Real Time Clock, Low Voltage Reset/Detection and many others.

• Built-in 16-bit µ’nSP 1.3 microprocessor
  • 256K-word flash
  • 4K-word SRAM
  • 592-word SRAM for LCD frame buffer
  • CPU clock: max. 48MHz
  • 19 INT sources can be selected as IRQ or FIQ
• Three power saving mode:
  • Standby mode/Halt mode/Wait mode
  • Max. 20µA @ 3.6V in Standby mode
  • Max. 30µA @ 3.6V in Halt mode(without LCD display)
  • Max. 180µA @ 3.6V in Halt mode(with mono LCD display)
  • Max. 2mA @3.6V in Wait mode
• Supports USB 2.0 full-speed (12MHz) compliant device with built-in transceiver
• Programmable LCD driver
  • Up to 74 segments, up to 32 commons, maximum 2368 dots
    Unused commons and segments can be set as I/O
  • 1/3~1/7 bias, 1/4, 1/6, 1/8,1/12, 1/16, 1/18, 1/32 duty
  • Adjustable LCD voltage (32 level)
  • 592 words dedicated LCD RAM
  • Selectable black/white or 16-gray display
• Built-in 12-bit ADC with AGC
• Asynchronous serial interface (UART)
• Supports SPI interface
• Three 16-bit timers/counters
• Two-channel 16-bit DAC audio outputs
• Maximum up to 37 general I/Os (8 dedicate I/Os, 29 shared with commons/segments)
• Key wakeup/interrupt function
• PLL feature for system clock
• 32768Hz Real Time Clock (RTC)
• Low voltage reset and low voltage detection
• Watchdog, system bus/address error reset
• Software-based audio processing