Low-voltage E2CMOS PLD for glue-logic consolidation
The National Semiconductor GAL16V8QS-15LVC is a low voltage E2CMOS PLD — a programmable logic device that replaces multiple discrete 74-series logic gates in a single 20-pin footprint. The E2CMOS process means the configuration is stored in electrically erasable cells, so the part can be reprogrammed in-circuit without UV erasure. This is the QS suffix variant, indicating a low-power, high-speed version of the classic GAL16V8 architecture. The 15 in the order code denotes a 15 ns propagation delay, which sets the ceiling for the combinatorial logic path — a 15 ns tpd means the output settles within 15 ns of the input transition, suitable for bus-interface and address-decoding tasks running at clock rates up to roughly 33 MHz.
The part ships in Bulk packaging, which is the standard tube or tray format for DIP and SOIC-style PLDs. Bulk packaging suits both automated pick-and-place and manual through-hole assembly lines without the premium of tape-and-reel.