The PAL16R8 Family from AMD is a high‑speed 20‑pin TTL programmable array logic (PAL) device offering features such as register preload, power‑up reset, and extensive third‑party software support. It is available in standard 20‑pin DIP and PLCC packages as well as a 28‑pin PLCC version that reduces noise and propagation delay.
The document includes detailed block diagrams, pin designations, ordering information, and functional descriptions covering programmable three‑state outputs, registers with feedback, security fuse protection, and power‑up reset behavior. Technical specifications such as propagation delay, operating temperature range, and reset timing are also provided.
| Maximum propagation delay | 4.5 ns |
|---|---|
| Power‑Up Reset time | 1000 ns |
| Operating temperature range | 0 °C to +75 °C |
The PAL16R8 devices have a maximum propagation delay of 4.5 ns.