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The M80C85A-2 is a CMOS version of the Intel 8085A 8-bit microprocessor, manufactured by OKI.

Specifications:

• Manufacturer: OKI
• Part Number: M80C85A-2
• Technology: CMOS
• Clock Speed: 5 MHz
• Supply Voltage: 5V ±10%
• Instruction Set: 8085A-compatible
• Data Bus Width: 8-bit
• Address Bus Width: 16-bit (64KB addressable memory)
• Operating Temperature Range: Commercial (0°C to +70°C) or Industrial (-40°C to +85°C) depending on variant
• Package: 40-pin DIP (Dual In-line Package)

Descriptions:

The M80C85A-2 is a low-power CMOS version of the Intel 8085A microprocessor, offering improved power efficiency while maintaining full compatibility with the original NMOS 8085A instruction set. It is designed for embedded control, industrial, and consumer applications requiring an 8-bit processor.

Features:

• Low Power Consumption: CMOS technology reduces power usage compared to NMOS versions.
• Fully Static Operation: Supports clock speeds down to DC (0 Hz), enabling power-saving modes.
• On-Chip Clock Generator: Includes an integrated oscillator, reducing external component count.
• Interrupt Support: Five interrupt inputs (TRAP, RST 7.5, RST 6.5, RST 5.5, INTR).
• Serial I/O Port: Built-in serial communication capability.
• Compatibility: Binary-compatible with Intel 8085A software.

This information is based on the manufacturer's datasheet and technical documentation.