GAL20V8-25LVC

Programmable Logic Device Pld Overview

The GAL20V8-25LVC is a Generic Array Logic (GAL) device manufactured by National Semiconductor. It utilizes high-performance E2CMOS technology to provide a programmable logic solution with a maximum propagation delay of 25 ns. The component features an EE PLD architecture with 20 inputs and 8 outputs, organized into 8 macrocells. Designed for CMOS compatibility, it operates at a standard supply voltage of 5 V and supports register preload functionality. The device is housed in a PDIP package, offering a cost-effective alternative to bipolar PALs with significantly reduced power consumption.

Programmable Logic Device Pld Feature Summary

• High-performance E2CMOS technology enabling 25 ns maximum propagation delay
• PAL-type architecture with 20 dedicated inputs and 8 registered outputs
• 8 Macrocells with shared input/clock capabilities and register preload
• CMOS compatible operation at 5 V supply voltage

Programmable Logic Device Pld Applications

• Digital system design requiring low-power programmable logic
• Replacement for legacy bipolar PAL devices in existing hardware
• General-purpose state machine implementation
• Address decoding and bus interfacing circuits

Programmable Logic Device Pld Part Context

The GAL20V8 series represents a generation of Electrically Erasable Programmable Logic Devices that bridge the gap between fixed-function gates and complex FPGAs. Manufactured originally by National Semiconductor before its acquisition by Texas Instruments, this specific part number denotes the 25 ns speed grade within the GAL20V8 family. The 'LVC' suffix typically indicates a specific package variant or temperature range, though exact packaging details require verification against the original datasheet.

Programmable Logic Device Pld Replacement Considerations

When replacing the GAL20V8-25LVC, verify pinout compatibility with the target socket. Equivalent parts from other manufacturers, such as Lattice's GAL20V8B-25LPN or AMD/AT&T variants, should be checked for identical electrical characteristics and timing parameters. Ensure the replacement device supports the same programming voltage and interface requirements.