The 9400 Series (officially 4700 Macrologic Series Bipolar Family) was a family of 4-bit bipolar multi-chip bit-slice microprocessor designed by Fairchild Semiconductor. The series was introduced in 1975. Around the same time Fairchild introduced the 4700 series which was a similar family using CMOS technology instead.
This family was 2nd sourced by Signetics.
|9402||FIFO buffer (16x4-bit)|
|9403||Series/Parallel FIFO (Buffer Memory)|
|9404||Data Path Switch (DPS)|
|9405||Microprocessor "ALRS" (Arithmetic Logic Register Stack)|
|9406||Program Stack (16x4-bit LIFO)|
|9407||Data Access Register|
|9410||16x4 Clocked RAM (16x4-bit)|
|9423||FIFO buffer (16x4-bit)|
|This section is empty; you can help add the missing info by editing this page.|
|This article is still a stub and needs your attention. You can help improve this article by editing this page and adding the missing information.|