MAC-8 and MAC-4 CPU Datasheets

[segaloco]

Good morning, I just wanted to share a few Bell Laboratories datasheets concerning the MAC-8 and MAC-4 processors:

https://archive.org/details/212-b-mac-8-data-sheet

https://archive.org/details/mac-4-specification-sheet

In short, the MAC-8 and MAC-4 were 8- and 4-bit processors respectively which Western Electric used in numerous applications such as central office switching peripherals and PBX systems.

Much more detail about these can be found here:

https://forum.vcfed.org/index.php?threads/western-electric-component-databooks.1250931/#post-1464263