GAL20V8QS-15LNC

Programmable Logic Device Pld Overview

The GAL20V8QS-15LNC is a Complex Programmable Logic Device (CPLD) belonging to the GAL20 family, originally manufactured by National Semiconductor. It features a PAL-type architecture with 20 input lines and 8 output lines, providing 64 macrocells for logic implementation. The device operates at a maximum propagation delay of 15 ns and supports a maximum clock frequency of approximately 66 MHz. It utilizes a 28-pin Plastic Leaded Chip Carrier (PLCC) package and functions on a single 5 V supply voltage.

Programmable Logic Device Pld Feature Summary

• PAL-type architecture with 64 macrocells
• 20 inputs and 8 outputs
• 15 ns maximum propagation delay
• 28-pin PLCC plastic package

Programmable Logic Device Pld Applications

• Digital logic replacement
• Address decoding
• Bus interfacing

Programmable Logic Device Pld Part Context

This component is part of the GAL20 series of Electrically Erasable Programmable Logic Devices (EEPLDs). National Semiconductor was acquired by Texas Instruments, which continues to support this product line. The 'QS' suffix typically denotes specific speed grades or testing variations within the GAL20V8 family.

Programmable Logic Device Pld Replacement Considerations

Direct replacements include GAL20V8-15LVC or GAL20V8-15LVI from Texas Instruments. Verify pin compatibility and electrical specifications before substitution.