• 8-Bit Static Pipeline CPU
• ROM: 16K x 8 bits PROM(OTP)
• RAM: 192 x 8 bits
• 32-Level Deep Stack
• Operating Voltage : 2.4V ~ 5.5V
- OTP option bit to enable
• General-Purpose I/O (GPIO) Ports
  - Up to 28 pins are programmable CMOS I/O, 20 pins share with LCD SEGMENTs
  - 8 open drain output pins share with LCD COMs
  - Hardware de-bounce option for Port-A
  - Bit programmable pull-up for input pins
• 2 Input Pins
  - OTP option bit to select (shared with OSCX)
• Timer / Counter
  - One 8-bit timer / 16-bit event counter
  - One 8-bit BASE timer
• Five Powerful Interrupt Sources
  - External interrupt (edge trigger) / RFC interrupt(Share with external interrupt)
  - TIMER1 interrupt
  - BASE timer interrupt
  - PORTA[7~0] interrupt (transition trigger)
  - DAC reload interrupt
• Watchdog Timer (WDT)
  - With its own low power internal oscillator for reliability
  - Four selectable time bases
  - WDT reset CPU only
  - OTP option bit to enable
  - One option bit is selectable to reset or not in WAI1 and STP mode
• Dual Clock Source with Warm-up Timer
  - OSCX: Low frequency crystal oscillator with 32768Hz
  - OSC: High frequency RC oscillator from 500K ~ 8MHz
• On-chip Internal Oscillator for WDT
  - < 5uA typical @ 3V, 27¢J
• LCD Controller Driver
  - 16 level contrast control
  - 320 ( 8x40) dots ( 1/8 duty, 1/4 bias, programmable)
  - 160 ( 4x40) dots ( 1/4 duty, 1/3 bias, programmable)
  - Two clock source options: RC and resonator oscillator
  - Keyboard scan function supported on 40 shared segment drives
  - Internal bias resistors(1/4 bias & 1/3 bias) with 32 level driving strength control
• Programmable Sound Generator (PSG)
  - Tone generator
  - Sound effect generator
  - 16 level volume control
  - Digital DAC for speech / tone
• Resistor Frequency Converter (RFC)
  - Up to 4 resistors measurement
  - Built-in one independent 16-bits counter without sharing with timer counter
  - 3 clock sources for RFC counter: SYSCK, OSCX and INTX
  - 5 scales of clock divider for RFC counter
• Carrier Wave Generator(CGR)
  - Built-in one digital PLL
  - Standard clock rate output for remote control
• Three Power Down Modes
  - WAI0 mode
  - WAI1 mode
  - STP mode

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