■ DESCRIPTION
The MB89920 series is a line of single-chip microcontrollers using the F2MC*-8L CPU core which can operate at low voltage but at high speed.
The microcontrollers in this series contain peripheral functions such as a PWM timer, an input capture/output compare control counter, an LCD controller/driver, an A/D converter, and a UART.
The MB89920 series can suit a wide range of applications such as analog input conversion, pulse input measurement/pulse output control, serial communications control, and display control.

■ FEATURES
• High speed processing at low voltage
  Minimum execution time: 0.5 µs/8.0 MHz
• F2MC-8L family CPU core
  Instruction set optimized for controllers
     Multiplication and division instructions
     16-bit arithmetic operations
     Test and branch instructions
     Bit manipulation instructions, etc.
• 8-bit PWM timer: 2 channels (also usable as a reload timer)
• 16-bit input capture: 2 channels / 16-bit output compare: 2 channels
• 20-bit time-base counter
• UART: 1 channel (with asynchronous transfer mode and 8-bit synchronous serial mode)
• 8-bit serial interface: 1 channel (LSB first/MSB first selectability)
• 10-bit A/D converter: 8 channels
• LCD controller/driver: 28 segments × 4 commons (max. 112 pixels)
• Low-voltage detection reset
• Watchdog timer reset
• External interrupt: 4 channels
  Four channels are independent and capable of wake-up from the low-power consumption mode (with edge detection function)
• Buzzer output/clock output
• Low-power consumption modes:
  Stop mode (The software stops oscillation to minimize the current consumption.)
  Sleep mode (The CPU stops to reduce current consumption to approx. 1/3 of normal.)
  Hardware standby mode (The pin input stops oscillation.)