GAL20V8A-15LVC

Programmable Logic Device Pld Overview

The GAL20V8A-15LVC is a CMOS Electrically Erasable Programmable Logic Device (EE PLD) manufactured by National Semiconductor. It features a PAL-type architecture with 20 dedicated inputs and 8 I/O lines, housed in a 28-pin LDCC plastic package. The device supports a maximum clock frequency of 33.3 MHz with a propagation delay of 15 ns. It operates within a standard 5 V supply voltage range and includes macrocell output structures for flexible logic implementation.

Programmable Logic Device Pld Feature Summary

• CMOS EE PLD technology with 20 inputs and 8 I/Os
• 15 ns propagation delay supporting up to 33.3 MHz
• 28-pin LDCC plastic package
• Standard 5 V operating voltage

Programmable Logic Device Pld Applications

• General-purpose digital logic replacement
• Address decoding circuits
• Bus interface logic

Programmable Logic Device Pld Part Context

This component belongs to the GAL20V8 family of EE PLDs, which succeeded earlier GAL devices by offering electrical erasability. The '15' suffix indicates the 15 ns speed grade, while 'LVC' denotes the specific low-voltage CMOS process variant and LDCC package type used by National Semiconductor.

Programmable Logic Device Pld Replacement Considerations

Direct pin-compatible replacements include other GAL20V8 variants from manufacturers like Lattice or Texas Instruments, provided the speed grade meets or exceeds 15 ns requirements. Verify that the substitute maintains the same 28-pin LDCC footprint and 5 V logic levels.