12 ns EE PLD for legacy 5V glue logic
The Microchip ATF16V8CZ-12JX is an electrically-erasable programmable logic device (EE PLD) from the 16V8 family, offering 8 macrocells in a 20-PLCC package. It operates from a 5V supply and delivers a 12 ns propagation delay, making it suitable for address decoding, bus arbitration, and control logic in 5V systems.
Obsolete — plan for a replacement
For new designs or repairs requiring a drop-in replacement, the closest pin-compatible alternative within the same 16V8 family is the ATF16V8C-12JX, which shares the same 12 ns speed, 5V operation, and 20-PLCC footprint. The ATF16V8C-12JX is a direct EE PLD replacement with identical macrocell count and package.
Buyers should expect to work with surplus or broker inventory for this order code.
5V-only logic — check your rail
The ATF16V8CZ-12JX is specified for a 5V input supply only. It is not rated for 3.3V or lower voltage operation. If your board uses a mixed-voltage bus, you will need level translation on the I/O lines. The 12 ns propagation delay is measured at nominal 5V and 25°C; derate for temperature and voltage per the datasheet curves.