Quoting Billy Pettit <Billy.Pettit at wdc.com>:
I recently came across a stock of what seems to be 16
bit wide memory
chips.
But I'm getting nowhere trying to find a data sheet. Can anybody help
out?
The parts are UM61M512K-15, 32 pins DIP. The logo is round, world
shaped
with 3 vertical and 3 horizontal lines. Date codes are 95 and 96.
The parts were on some mini-486 PCBs.
If these really are 16 bit wide and 32K deep, they would be great for a
SBC
I'm building. Especially if the 15 means 15 ns.
Sounds like Sram from the L2 Cache on the 486 boards.