What this 22V10 PLD does in a board
The Microchip ATF22V10CZ-15SI is an EE PLD from the 22V10 family, offering 10 macrocells in a 24-SOIC wide-body package. It runs on a single 5V supply and delivers a 15 ns propagation delay.
15 ns speed — timing margin in practice
The 15 ns propagation delay (tPD) is the time from input crossing the threshold to output settling. In a typical address-decode path, this adds directly to the memory-access cycle budget.
10 macrocells — sizing the logic
Ten macrocells each contain a programmable flip-flop and output logic configurable as registered, combinatorial, or tri-state. This is enough for a 10-state sequencer or a handful of chip-select equations.
Package and footprint — 24-SOIC wide
The 24-SOIC package has a body width of 7.50 mm (0.295") — the wide-body variant, not the narrow 3.9 mm SOIC. The 1.27 mm pin pitch is standard, but the wider body means the PCB footprint must match the JEDEC MO-119 pattern. A narrow-SOIC land pattern will misalign the outer pins.