Not to be confused with National MM5700 Series.

National MAPS
MM5700CA ALU
Developer	National Semiconductor
Manufacturer	National Semiconductor
Type	microcontrollers
Production	1971
Architecture	Bin/BCD serial up to 76 bits
Word size	variable "variable" is not a number.
Technology	pMOS
Package	DIP16, DIP24

The National MAPS (Microprogrammable Arithmetic Processor System) or National MM570x was a family of multi-chip bit-serial microcontrollers designed by National Semiconductor. The system was made of 5 discrete chips designed to operate on variable-sized words. The system can be programmed to operate in binary or BCD up to a 76 bit one cycle data word. The chipset was marketed as a general purpose serial data microcomputer system. The chipset was introduced in late 1971 but was quickly replaced within a few short years.

Members

Family Members
Part	Description
MM5700	ALU
MM5701	Register unit
MM5702	Clock and Control unit
MM5703	Control ROM (extension)
MM5704	Keyboard interface unit
MM5705	Control ROM
MM5706	Static Data Monitor

Design

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ISA

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Gallery

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  MM5700

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  MM5701

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  MM5702

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  MM5703

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  MM5704

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