Products - GPLB51640A1

General Description

GPLB51640A1, an 8-bit CMOS microprocessor, features 1536 bytes working RAM, 640K bytes ROM memory, 16 I/Os, interrupt/wakeup controller, two 16-bit timers, SPI interface,one 12-bit DAC, one 10-bit PWM, and automatic display controller/driver for mono/4-gray-level LCD.  GPLB51640A1 contains up to 74 segments and 22 commons, forming a maximum of 1628 dots LCD.  The microprocessor can implement software for audio processing, functional control and others.  In audio processing, melody and speech can be mixed into one output.  GPLB51640A1 also carries a high performance SPU voice engine to achieve 8-channel voice with ADPCM/PCM data.  It operates over a wide voltage range from 2.4V through 5.5V, plus Low Voltage Reset function to assure system is still functioning properly when power drops below a specific level.  Also, it features one 10-bit PWM driver and one 12-bit DAC with 8 audio channels to produce attractive sound effects easily.  Its large ROM area can be used to store both program and audio data.  There is a Serial Peripheral Interface (SPI) controller built-in to facilitate communicating with other devices.  Furthermore, a SLEEP (power-down) function is also built in to extend battery life.  GPLB51640A1 is designed with state-of-the-art technology to fulfill LCD application needs, especially for hand-held products.

Features

• 8-bit microprocessor
• 1536 bytes of SRAM
• 640K bytes of ROM
• Operating voltage: 2.4V – 5.5V
• CPU operating speed:
• 0MHz @ 2.4V with 16MHz X’TAL
• 0MHz @ 2.4V with 16MHz ROSC
• Programmable CPU clock: /2, /4, /8, /16, /32, /64 and /128 R-oscillator clock frequency
• Six wake-up sources
• Nine IRQ & two NMI Interrupts
• Internal built-in regulator to supply core power (3.3V, for three-battery application). Also it can turn off internal built-in regulator, and use external 3.6V power to supply core power (for two-battery application).
• Programmable LCD driver
• LCD size table:

	GPLB51640A1
Segment	74
Common	22
LCD Dots	1628

• Supports from 1/2 duty up to 1/22 duty
• 512 bytes dedicated LCD RAM
• Supports normal type-B & type-C LCD waveform with or without key scan
• Built-in voltage regulator to generate VLCD for LCD driver
• 32-level contrast control (VLCD=2.95V~6.85V)
• Power saving SLEEP mode
• Low Voltage Detector

Four-level (2.4V/2.6V/3.0V/3.3V) voltage detector

• 2V Low Voltage Reset
• Peripherals
• 16 I/O pins (PA[7:0], PB[7:0])
• Built-in 32.768KHz oscillator circuit for real time clock function (X’tal or R-osc)
• Built-in R-oscillator for system operating clock (external resistor is needed)
• Internal time base generator
• Two 16-bit reloadable timer/counters
• Watchdog timer
• 12-bit DAC output and 10-bit PWM audio outputs
  • Key scan function
  • SEG[15:0] can be used to send key scan output
  • IR carrier output
  • One SPI serial interface I/O
• Powerful 8-ch Sound Processing Unit(SPU)
  • Variable tone-color sampling rate: maximum 54KHz@CPU_Clock=7MHz
  • 8-voice polyphony

Supports PCM/ADPCM tone-color table