The MCP-1600 was a multi-chip microprocessor made by Western Digital in the late 1970s through the early 1980s.

There were three types of chips in the chip-set:

• RALU - Register ALU chip
• CON - Control chip
• MICROM - Mask-programmed microcode ROM chip (512 – 22 bit words)

The chips used a 3MHz four phase clock and four power supply voltages (+5V, +12V, -12V, and -5V).

Up to four MICROMs are supported, but usually two or three could hold the needed microprogram for a processor.

Microprocessors