12 ns PLD for glue logic — the 16V8 family workhorse
The Microchip ATF16V8CZ-12JC is an electrically erasable programmable logic device (EE PLD) from the 16V8 series, offering 8 macrocells and a 12 ns propagation delay. It runs on a 5V supply and comes in a 20-PLCC (J-Lead) package, surface-mount, measuring 9x9 mm. This is a classic small-PLD part for address decoding, bus arbitration, or state-machine glue logic where the 12 ns speed keeps combinatorial paths tight.
Obsolete — plan a replacement now
This part is officially obsolete per the manufacturer. That means no further production runs; any remaining stock is what is already in the channel.
20-PLCC footprint — rework and socket options
The 20-PLCC package with J-Leads is a common footprint for PLDs of this era. It can be soldered directly to the board or placed in a PLCC socket for field-swap convenience. The 9x9 mm body and 1.27 mm pitch are standard; a socketed installation means the part can be swapped on site with basic tools — no hot-air station needed, just a PLCC extraction tool.
5V supply — legacy rail compatibility
The ATF16V8CZ-12JC operates on a 5V input supply. For a repair or retrofit on an existing 5V backplane, this part plugs straight in without a supply change.