■ DESCRIPTION

The MB89470 series has been developed as a general-purpose version of the F2MC*-8L family consisting of

proprietary 8-bit, single-chip microcontrollers.

In addition to a compact instruction set, the microcontroller contains a variety of peripheral functions such as 21-bit time-base timer, watch prescaler, PWC timer, PWM timer, 8/16-bit timer/counter, external interrupt 1 (edge), external interrupt 2 (level) , 10-bit A/D converter, UART/SIO, buzzer, watchdog timer reset.

The MB89470 series is designed suitable for home appliance as well as in a wide range of applications for consumer product.

■ FEATURES

• Package used

   QFP package, LQFP package and SH-DIP package for MB89P475, MB89475 MQFP package for MB89PV470

• High-speed operating capability at low voltage

• Minimum execution time : 0.32 µs/12.5 MHz

• F2MC-8L family CPU core

   Instruction set optimized for controllers

      Multiplication and division instructions

      16-bit arithmetic operations

      Bit test and branch instructions

      Bit manipulation instructions, etc.

• Six timers

   PWC timer (also usable as an interval timer)

   PWM timer

   8/16-bit timer/counter × 2

   21-bit timebase timer

   Watch prescaler

• Buzzer

   7 frequency types are selectable by software

• External interrupts

   Edge detection (Selectable edge) : 4 channels

   Low-level interrupt (Wake-up function) : 5 channels

• A/D converter (8 channels)

   10-bit successive approximation type

• UART/SIO

   Synchronous/asynchronous data transfer capable

• Low-power consumption modes

   Stop mode (Oscillation stops to minimize the current consumption.)

   Sleep mode (The CPU stops to reduce the current consumption to approx. 1/3 of normal.)

   Subclock mode (for dual clock product)

   Watch mode (for dual clock product)

• Watch dog timer reset

• I/O ports : Max 39 channels