TIBPAL20L8-25CNT

Overview

The TIBPAL20L8-25CNT is a low-power, high-performance Impact PAL circuit from Texas Instruments. It features 14 inputs and 6 I/O ports with no registered outputs. The device operates within a supply voltage range of 4.75 V to 5.25 V. Maximum propagation delay is 25 ns, with a maximum operating frequency of 33 MHz without feedback. The maximum supply current is 105 mA. It supports an operating temperature range of 0°C to 75°C.

Feature Summary

• Direct replacement for standard PAL20L8A devices with significantly reduced power consumption.
• Utilizes Advanced Low-Power Schottky technology combined with titanium-tungsten fuses for reliability.
• Designed for quick custom function implementation to achieve more compact circuit boards.

Applications

• General-purpose logic replacement in industrial control systems
• State machine implementation in embedded hardware
• Address decoding and bus interface logic
• Timing control circuits requiring fast response

Procurement Notes

Verify the specific suffix 'CNT' against official documentation to confirm package type and temperature grade. Confirm RoHS compliance status as legacy parts may vary. Check for availability through authorized distributors or secondary markets, as this component series may be discontinued. Ensure programming equipment compatibility with TI Impact PAL specifications before procurement.

Selection Notes

Select this device when a direct functional substitute for PAL20L8A is required with lower power dissipation. The 25 ns speed grade suits applications needing moderate switching speeds. Verify that the 14-input, 6-output configuration matches the design requirements. Consider the PDIP-24 package constraints for board layout. Ensure the 0°C to 75°C commercial temperature range meets environmental needs.

Part Context

This component belongs to the Texas Instruments TIBPAL20L8 family of Simple Programmable Logic Devices (SPLD). These are part of the broader Impact PAL series, which combines high performance with low power consumption. The family includes variants with different speed grades and output configurations, such as registered outputs, catering to diverse digital logic design needs.

Replacement Considerations

Functionally equivalent to AMD AMPAL20L8A. When substituting, verify pinout compatibility and ensure the new device supports the same programming algorithm. Power consumption differences should be accounted for in thermal design. Confirm that the replacement device's electrical characteristics meet the original system timing requirements.