Products - GPC22C256A

General Description

GPC22C256A is embedded with an 8- bit processor, Mask ROM, SRAM, two or three 12-bit timers, multi-general I/Os, one pure input port, one 12-bit current DAC, one 14-bit audio PWM driver and a real time clock.  The microprocessor can implement software based on audio processing, function control and others.  In audio processing, two channels of speech or two tone generators can be used by configuring the controlled register.  GPC22C256A is capable of operating in a wide range of voltage from 2.0V through 5.5V with a Low Voltage Reset function to assure GPC22C256A maintain working properly.  In addition, GPC22C256A features a sleep mode for power savings.  CPU can be awake from sleep mode by assertion of interrupt sources or by trigger of IOs.  The Serial Peripheral Interface (SPI) controller built-in GPC22C256A makes it communicates with other devices or components easily.

Features

• 8-bit microprocessor
• 256 bytes SRAM
• Operating voltage: 2.0V – 5.5V
• Maximum CPU operating speed: 8.0MHz (Fosc=16MHz)
• Three wakeup sources
• Nine IRQs & one NMI Interrupts
• Internal built-in regulator to supply core power
• Two software channels with noise filter for playback of high sound quality
• Low Voltage Reset (LVR)
• Active Battery Voltage Detection (BVD)
• Peripherals
• Multiple general I/O ports
• One pure input port
• Multi-general I/O pins support high sink current
• Key wakeup/interrupt function
• Built-in 32.768KHz oscillator circuit for real time clock function (X’tal)
• Built-in R-oscillator (external resistor is needed) or internal R-oscillator for system operating clock (12MHZ or 16MHZ)
• Internal time base generator
• Two or Three sets of 12-bit timer/counter, TMA with capture function
• Watchdog function
  • 14-bit PWM driver for driving speaker directly
  • One 12-bit current DAC
  • IR output
  • 12 hardware PWMIOs
  • One SPI serial interface I/Os
• Sleep mode to reduce power