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Fairchild PPS-25
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Developer Fairchild

Introduction date 1972 or (1Q, 1971)

Model PPS-25

Clock 400 kHz

Bus Width 4-bit

Memory Specs
Max Memory  ?

Packaging
Package 40-pin DIP

The Fairchild PPS-25 was a 4-bit microprocessor developed by Fairchild in 1972. While there is no definitive starting production date available, some older books state that the chip was first produced in first quarter of 1971, ahead of the Intel 4004.[1]

References

  1. Jack Belzer, Albert G. Holzman, Allen Kent (Jul 1, 1978). Encyclopedia of Computer Science and Technology: Volume 10 - Linear and Matrix Algebra to Microorganisms: Computer-Assisted Identification. page 401