TIBPAL20L8-25CFN

Overview

The TIBPAL20L8-25CFN is a low-power, high-performance Impact PAL circuit featuring 14 inputs and 6 I/O ports. It operates within a supply voltage range of 4.75 V to 5.25 V. The device achieves a maximum propagation delay of 25 ns and supports a minimum frequency of 33 MHz without feedback. Maximum operating current is 105 mA. The component is characterized for operation between 0°C and 75°C.

Feature Summary

• Direct replacement for legacy PAL20L8A devices with significantly reduced power consumption
• Preload capability on output registers simplifies system testing procedures
• Power-up clear feature ensures all register outputs initialize to a low level

Applications

• State machine initialization circuits
• Custom logic function implementation
• System bus interface control
• Address decoding logic

Procurement Notes

Verify the specific 'FN' package suffix corresponds to the Plastic Chip Carrier form factor required for the design. Confirm that the 25C speed grade meets the timing constraints of the target application. Ensure compatibility with existing programming hardware for titanium-tungsten fuse technology.

Selection Notes

Select this variant when a direct functional substitute for standard PAL20L8A is needed with lower power dissipation. The FN package option provides board space reduction compared to traditional DIP formats. Verify input/output port requirements match the 14-input and 6-I/O configuration available in this specific model.

Part Context

This component belongs to the Texas Instruments IMPACT PAL family, utilizing Advanced Low-Power Schottky technology. It serves as a high-speed, reliable programmable logic solution designed to replace conventional TTL logic gates while offering greater design flexibility and compactness.

Replacement Considerations

Functionally equivalent to AMD AMPAL20L8A. When substituting, ensure the new device supports the same preload procedure and power-up reset characteristics to maintain system stability during initialization sequences.