GAL20V8-20LNC

Programmable Logic Device Pld Overview

The GAL20V8-20LNC is a Generic Array Logic (GAL) device manufactured by National Semiconductor, classified as an Electrically Erasable Programmable Logic Device (EE PLD). It features a PAL-type architecture with 20 dedicated inputs and 8 output lines, totaling 28 terminals. The component operates at a maximum clock frequency of 33.3 MHz with a typical propagation delay of 20 ns. Designed for commercial temperature ranges, it utilizes a 5 V power supply and is housed in a 24-pin Dual In-line Package (DIP).

Programmable Logic Device Pld Feature Summary

• PAL-type EE PLD architecture with 20 inputs and 8 outputs.
• Maximum operating frequency of 33.3 MHz.
• 20 ns propagation delay specification.
• Commercial grade operation with 5 V nominal voltage.

Programmable Logic Device Pld Applications

• Standard logic replacement applications.
• State machine control implementations.
• DMA controller logic functions.

Programmable Logic Device Pld Part Context

This component belongs to the GAL20V8 family of simple programmable logic devices. While originally produced by National Semiconductor, this product line has been discontinued by Lattice Semiconductor following industry consolidation. The GAL20V8 series was designed to offer reprogrammability compared to traditional mask-programmed PALs, allowing for design iterations without hardware changes.

Programmable Logic Device Pld Replacement Considerations

Public records indicate that all GAL20V8 devices have been discontinued. Replacement requires identifying compatible SPLDs from manufacturers such as Lattice or Microchip. Verification must ensure pin compatibility between the 24-pin DIP package and potential substitute components, alongside matching electrical specifications like voltage and speed grades.