15 ns PLD for legacy 5V logic
The Microchip ATF22V10C-15JC is an electrically-erasable programmable logic device (EE PLD) from the industry-standard 22V10 family. It delivers a 15 ns propagation delay from input to combinatorial output, with 10 macrocells that can be individually configured for registered or combinatorial logic functions. Operating from a single 5V supply, this part is a direct fit for existing 5V backplane and glue-logic designs that require a known timing budget. The 15 ns speed grade sets the maximum system clock frequency and the combinatorial path delay — a critical parameter for timing closure in legacy bus interfaces.
PLCC-28 footprint and sourcing reality
The ATF22V10C-15JC is housed in a 28-lead PLCC (J-Lead) package, supplier device package 28-PLCC (11.51x11.51 mm). This is a surface-mount package with J-bend leads on a 1.27 mm pitch, requiring a PLCC-28 socket or a direct solder footprint with a 0.50 mm lead width land pattern. Microchip lists this part as obsolete. No last-time-buy date or official successor is recorded in the available lifecycle data.
Parametric fit for the 22V10 socket
The 22V10 architecture is a JEDEC-standard programmable logic family with 10 macrocells. The ATF22V10C-15JC is electrically-erasable, allowing reprogramming through standard PLD programmers. The 15 ns propagation delay is the combinatorial tPD from any input through the AND-OR array to the output.