The GAL16V8D-10LPI is officially designated Obsolete by Lattice Semiconductor Corporation, meaning the manufacturer no longer produces this exact order code.
Eight macrocells means the device can implement up to eight registered or combinatorial logic functions — each macrocell can be configured as a D-type flip-flop or a combinatorial output, giving the designer a known logic capacity ceiling before moving to a larger CPLD. The EE PLD programmable type uses electrically erasable cells — the configuration is stored in non-volatile memory and can be reprogrammed in-system or on a programmer, which is the standard approach for glue-logic replacement in legacy designs. Housed in a 20-DIP (0.300", 7.62mm) through-hole package, this part fits sockets and PCB layouts from the 1990s-era programmable logic era — the 20-PDIP footprint is still supported by many universal programmers and breadboard adapters.
GAL16V8 series and deployment context
The GAL16V8D-10LPI belongs to the GAL®16V8 series, a long-running family of generic array logic devices used for address decoding, bus arbitration, state machines, and other medium-density glue logic in embedded systems and industrial controllers. The through-hole DIP package suits prototyping, rework, and low-volume production where a socketed PLD allows firmware updates without desoldering — common in test equipment, legacy PLC I/O cards, and retrofit applications.