This document describes the features and characteristics of TIBPAL20 series high-performance IMPACT-X PAL circuits, including high-performance operation, preload capability, power-up clear function, package options, and security fuse.
The handbook describes the TIBPAL20 family of programmable array logic (PAL) devices, covering both the C‑suffix (JT or NT packages) and M‑suffix (JT packages). It includes functional block diagrams, pin assignments, package options, and design notes such as preload capability and power‑up clear behavior.
Key performance data are presented, including maximum operating frequencies, propagation delays, temperature ranges, and power dissipation. The document also contains typical characteristics tables, timing diagrams, and a notice of TI's warranty and liability terms.
| Maximum fmax (no feedback) for TIBPAL20R‑7C series | 100 MHz |
|---|---|
| Maximum fmax (internal feedback) for TIBPAL20R‑10M series | 62.5 MHz |
| Propagation delay (max) for TIBPAL20L8‑7C series | 7 ns |
| Propagation delay (max) for TIBPAL20L8‑10M series | 10 ns |
| Temperature range for TIBPAL20 C series | 0 °C to 75 °C |
| Temperature range for TIBPAL20 M series | -55 °C to 125 °C |
The TIBPAL20L8‑7C series has a maximum propagation delay of 7 ns.
The TIBPAL20 M series operates from –55 °C to 125 °C.
The fmax without feedback for the TIBPAL20R‑7C series is 100 MHz.
Yes, they are covered by U.S. Patent 4,410,987.