What this GAL16V8D-10LPN brings to the board
The GAL16V8D-10LPN is an electrically erasable PLD from Lattice's GAL®16V8 series, packing 8 macrocells in a 20-pin DIP package. It is the kind of part you reach for when a handful of 74-series logic gates would otherwise scatter across the board — one CPLD replaces them, instant-on, no external configuration memory needed. The through-hole 20-DIP (0.300", 7.62mm) body suits socketed or hand-solder prototypes, legacy maintenance, and low-volume builds where a fine-pitch QFP adds unnecessary assembly cost.
Sourcing an obsolete part
Lattice has marked the GAL16V8D-10LPN as obsolete. For existing designs that still need this exact order code, independent distribution channels hold inventory — quantities are lot-specific and confirmed at RFQ. If you are qualifying a replacement, the GAL®16V8 family includes other speed grades and package variants, but any swap requires verifying the pinout and timing against the original BOM position.
8 macrocells — right-size the glue logic
Eight macrocells give you roughly 8 registered or combinatorial outputs, enough to handle address decoding, bus arbitration, or state-machine sequencing for a small microcontroller system. Do you really need an FPGA for that? Probably not — this CPLD powers up in nanoseconds and draws no configuration current. The EE PLD technology means you reprogram it in-circuit without UV erasure — handy during development and field updates. The 10 ns propagation delay (the '10' in the order code) sets the maximum clock rate; for a 50 MHz bus, budget the tPD into your timing closure.