Information on IC- 14-pin DIP, SN269451 (or possibly SN259451), T7545, DEC1488

William Paez

Hello, I am seeking information on a TI IC: 14-pin DIP with the markings SN269451 (or possibly SN259451), T7545, DEC1488. It is from an interface adapter board in a DEC VT-52 terminal. I am attempting to determine whether it is fully or partially functioning and if there is a contemporary replacement for it.

over 6 years ago

0 Ed Walker over 6 years ago

Prodigy 5 points

Hello William,

Unfortunately those part numbers are all custom devices made for DEC. There is no record of them in the TI archives.
You would need to get the schematic and device information from DEC.

0 William Paez over 6 years ago in reply to Ed Walker

Prodigy 20 points

Thank you for replying. I did find schematics and the original BOM. I was able to determine what replacement IC I should use from that effort.

Logic

Logic forum

Information on IC- 14-pin DIP, SN269451 (or possibly SN259451), T7545, DEC1488