15 ns PLD — what the speed grade buys you
The ATF22V10C-15XC is a 5V-only electrically erasable PLD from Microchip's 22V10 family, offering 10 macrocells and a 15 ns propagation delay. That 15 ns pin-to-pin speed sets the ceiling for registered logic at roughly 66 MHz, assuming the feedback path and external routing add minimal delay. For a glue-logic or address-decoder socket on a legacy 5V bus, this part fits without level translation.
Microchip lists the ATF22V10C-15XC as Obsolete.
5V supply and TSSOP-24 footprint
The surface-mount TSSOP-24 footprint is common across many 22V10 variants, but the 15 ns speed grade is specific to this ordering code. If your board layout expects a 24-pin TSSOP with 0.65 mm pitch, this part drops in — confirm the mating half and the programming voltage before committing.