■ DESCRIPTION

The MB89910 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 microcontrollers contain a variety of peripheral functions such as dual-clock control system, five operating speed control stages, timers, a serial interface, an A/D converter, a buzzer output, a low-voltage detection reset, high-voltage driver, a watch prescaler, and external interrupts.

The MB89910 series is applicable to a wide range of applications from consumer products to industrial equipments.

■ FEATURES

• Minimum execution time: 0.50 µs/8.0 MHz oscillation

• Interrupt processing time: 4.50 µs/8.0 MHz oscillation

• 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.

• Dual-clock control system

• High-voltage ports (built-in a pull-down resistor capable)

8 ports for large current

10 ports for small current

• 8-bit PWM timer: 1 channel

• 16-bit timer/counter: 1 channel

• 21-bit timebase timer

• 8-bit serial I/O: 1 channel

• 8-bit A/D converter: 8 channels

• External interrupt

Edge detection function

Two channels, including one of which voltage can be applied from –0.3 to +7.0 V

• Low-voltage detection reset (excluding the MB89PV910)

• Low-power consumption modes (subclock mode, watch mode, sleep mode, and stop mode)

• Reset output and power-on reset function

• Watch prescaler