Mostek MK31000
The Mostek MK31000 or General Instrument RO-3-8316 are 2k×8 mask-programmable ROMs with a pre-JEDEC pinout.
Data sheet
- http://bitsavers.trailing-edge.com/components/mostek/_dataBooks/1977_Mostek_Memory_Products.pdf
- http://bitsavers.trailing-edge.com/components/gi/_dataSheets/GI_ROMs.pdf