Description

The 88MC860-BFM1 is an electronic component model belonging to the IC Chips product category. It is an 8-bit microcomputer based on the 740 family core technology. This model features a LCD drive control circuit, a 10-bit A-D converter, and a Serial I/O as additional functions. It comes in variations of internal memory size and packaging. For more details, please refer to the section on part numbering.

Specifications and features

- Basic machine-language instructions: 71
- Minimum instruction execution time: 0.5 µs (at 8 MHz oscillation frequency)
- Memory size:
    ROM: 60 K bytes
    RAM: 2048 bytes
- Programmable input/output ports: 35
- Software pull-up resistors: Ports P0–P3, P41–P47
- Interrupts: 15 sources, 15 vectors (includes key input interrupt)
- Timers: 8-bit × 3, 16-bit × 2
- Serial I/O: 8-bit × 1 (UART or Clock-synchronized)
- A-D converter (32 kHz operating available): 10-bit × 8 channels
- LCD drive control circuit:
    Bias: 1/5, 1/7
    Duty: 1/16, 1/32
    Common output: 16 or 32
    Segment output: 52 or 68
- Main clock generating circuit (RC oscillation selectable): Connect to external ceramic resonator or resistor
- Sub-clock generating circuit: Connect to quartz-crystal oscillator
- Power source voltage:
    In high-speed mode: 4.0 to 5.5 V
    In middle-speed mode: 2.2 to 5.5 V
    In low-speed mode: 2.2 to 5.5 V
- Power dissipation:
    In high-speed mode: 30 mW (at 8 MHz oscillation frequency, at 5 V power source voltage)
    In low-speed mode: 60 µW (at 32 kHz oscillation frequency, at 3 V power source voltage, at WIT state, at voltage multiplier operating, LCD drive waveform generating state)
- Operating temperature range: -20 to 85°C

Application Scenarios

This electronic component model can be used in various applications that require an 8-bit microcomputer with LCD drive control, A-D converter, and Serial I/O functionalities. It is suitable for projects that involve programmable input/output ports, timers, and interrupt handling. The wide range of power source voltage options makes it adaptable to different power requirements. Its compact size and packaging options also make it versatile for different systems.

Comparison

- Provides LCD drive control circuit, A-D converter, and Serial I/O functionalities
- Various options for memory size and packaging
- Wide range of power source voltage options
- Programmable input/output ports
- Timers and interrupts
- Compact size

- Power dissipation in high-speed mode can be relatively high (30 mW)