7.5 ns propagation delay — what it buys you
The Microchip ATF16V8C-7XU is an electrically erasable programmable logic device (EE PLD) from the 16V8 series, offering 8 macrocells in a 20-TSSOP package. Its 7.5 ns propagation delay means the combinatorial logic path from input through the AND-OR array to output settles in under 8 ns, supporting system clocks up to roughly 100 MHz depending on the logic depth and routing. This part is a direct drop-in for legacy 5V PAL/GAL designs where a 20-pin DIP or SOIC footprint is being migrated to a smaller surface-mount board.
Obsolete — plan your replacement now
5V-only logic — check your system rails
This part operates on a 5V input supply only. If your board runs a mixed 3.3V/5V logic bus, the ATF16V8C-7XU outputs will drive 5V levels — verify that downstream receivers are 5V-tolerant. The 20-TSSOP package (4.40 mm width) requires a fine-pitch soldering profile; the 0.65 mm lead pitch is manageable with a standard reflow oven but demands careful stencil alignment for hand-assembly rework.