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Fairchild PPS-25 Developer Fairchild Introduction date 1972 (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.