The ATF16V8CZ-15PC is a 16V8-series EE PLD from Microchip with a 15 ns propagation delay — the window for combinatorial logic to settle before the next clock edge. At 5V supply, that 15 ns sets the maximum system clock at roughly 66 MHz in a registered path, though the real ceiling depends on the external logic depth and routing capacitance. The 8 macrocells give you eight sum-of-product terms to implement glue logic, address decoding, or state-machine control in a single 20-pin DIP.
Obsolete — sourcing path for the BOM line
Microchip lists the ATF16V8CZ-15PC as Obsolete.
Package and footprint — legacy through-hole reality
Housed in a 20-pin PDIP (0.300", 7.62 mm body width) with through-hole mounting. The 0.100-inch pitch is standard for DIP sockets or hand-soldered into plated through-holes. If your PCB layout uses a 20-DIP footprint, this part drops in without a board spin.
EE PLD — reprogrammable but programmer-bound
The EE PLD type means the device is electrically erasable and can be reprogrammed, but only through a standard PLD programmer — there is no JTAG or in-system programming port. For prototyping, you can iterate the logic equations and re-blow the device; for production, the programmed part is a one-time image unless you plan for rework. The 5V-only I/O limits direct interface to 3.3V logic without a level translator.