GAL20V8Z-12QJ

Programmable Logic Device Pld Overview

The GAL20V8Z-12QJ is a Simple Programmable Logic Device (SPLD) manufactured by Lattice Semiconductor. It features an E2CMOS architecture with 20 dedicated inputs and 8 outputs, housed in a 28-pin PLCC package. The device specifies a maximum propagation delay of 12 ns and supports a maximum operating frequency of approximately 66.7 MHz. Designed for 5V operation, it offers low power consumption relative to bipolar alternatives. This component belongs to the legacy GAL20 series, which has been officially discontinued by the manufacturer.

Programmable Logic Device Pld Feature Summary

• E2CMOS technology providing high performance and low power consumption
• 20 dedicated inputs and 8 registered outputs
• 12 ns maximum propagation delay
• 28-pin Plastic Leaded Chip Carrier (PLCC) package

Programmable Logic Device Pld Applications

• General-purpose logic replacement for TTL/CMOS circuits
• Address decoding and chip select generation
• State machine implementation in industrial control systems
• Bus protocol interfacing and data routing

Programmable Logic Device Pld Procurement Notes

This specific part number is discontinued and no longer in production. Verification of availability should focus on surplus distributors or secondary market sources. Buyers must confirm the authenticity of components from non-original channels due to the age of the product line. Lead times and pricing are variable and not controlled by the manufacturer.

Programmable Logic Device Pld Selection Notes

Designers requiring new implementations should evaluate modern replacements such as the Lattice iCE40 family or MachXO series. These newer devices offer enhanced density, lower power profiles, and active support. When replacing the GAL20V8Z-12QJ, ensure that the substitute device matches the pinout compatibility or requires schematic adaptation.

Programmable Logic Device Pld Part Context

The GAL20V8Z-12QJ is part of the GAL20 family, a line of Electrically Erasable Programmable Logic Devices (EPLDs). The 'Z' suffix typically denotes military temperature range or specific reliability grades in some Lattice nomenclatures, while 'QJ' indicates the plastic quad flat package variant. This series was widely used before the dominance of complex FPGAs.

Programmable Logic Device Pld Replacement Considerations

Lattice recommends the iSPMACH 4000V series as a direct functional replacement for GAL20 devices. Other compatible SPLDs from manufacturers like Microchip (Mach1) may also serve as substitutes if pinouts align.