GAL20V8QS-10LNC

Programmable Logic Device Pld Overview

The GAL20V8QS-10LNC is a CMOS Electrically Erasable Programmable Logic Device (EEPLD) manufactured by National Semiconductor. It features a PAL-type architecture with 20 input lines, 8 dedicated inputs, and 8 output lines housed in a 28-pin PLCC package. The device operates within a voltage range of 4.5 V to 5.5 V and supports a maximum operating frequency of 58.8 MHz. With a typical propagation delay of 10 ns, it provides high-speed logic processing capabilities suitable for complex digital applications requiring reprogrammability.

Programmable Logic Device Pld Feature Summary

• CMOS EEPLD technology with electrically erasable memory
• PAL-type architecture with 64 product terms per macrocell
• 20 inputs and 8 outputs in a 28-pin PLCC package
• Maximum operating frequency of 58.8 MHz

Programmable Logic Device Pld Applications

• Complex state machine implementations
• Address decoding logic
• Bus interface protocols
• Replacement for fixed-function gate arrays

Programmable Logic Device Pld Procurement Notes

Verify the manufacturer origin as National Semiconductor or its successor Texas Instruments. Confirm the specific suffix 'LNC' corresponds to the 28-pin PLCC plastic package and commercial temperature range. Ensure compatibility with existing programming equipment for EEPLD devices.

Programmable Logic Device Pld Selection Notes

Select this component when a reprogrammable solution with 20 inputs and 8 outputs is required. The 10 ns delay and 58.8 MHz speed make it suitable for moderate-speed digital systems. Compare against GAL20V8 variants if different package types or speed grades are needed.

Programmable Logic Device Pld Part Context

This part belongs to the GAL20V8 family of simple programmable logic devices. It shares architectural similarities with other GAL20V8 models but differs in package type and speed grade. The QS variant typically denotes specific electrical characteristics within the National Semiconductor portfolio.

Programmable Logic Device Pld Replacement Considerations

Direct replacements include GAL20V8-10LNI or GAL20V8C-10LJNI from Lattice. Verify pinout compatibility and electrical specifications before substitution. Cross-reference with Texas Instruments documentation for equivalent parts.