GAL16V8A-12LVC

Programmable Logic Device Pld Overview

The GAL16V8A-12LVC is an Electrically Erasable Programmable Logic Device (EEPROM-based PLD) manufactured by National Semiconductor. It features a 12 ns propagation delay and utilizes a 20-pin Plastic Leaded Chip Carrier (PLCC) package. The device provides 16 input lines and 8 output lines, with each output capable of being configured as a standard output, registered output, or macrocell output. It operates on a single 5V supply and includes high-current sink/source capabilities for direct interface with TTL and CMOS loads.

Programmable Logic Device Pld Feature Summary

• Electrically erasable and reprogrammable via standard UV EPROM tools
• 12 ns typical propagation delay for high-speed logic applications
• 20-pin PLCC package with 16 inputs and 8 outputs
• Flexible macrocell architecture allowing combinatorial or registered output modes

Programmable Logic Device Pld Applications

• Replacement for complex discrete logic gates in digital circuits
• Address decoding and memory mapping in computer systems
• State machine implementation for control logic
• Bus protocol conversion between different logic families

Programmable Logic Device Pld Part Context

This component belongs to the GAL16V8 family of simple programmable logic devices. Unlike fuse-based PALs, the GAL16V8A uses EEPROM technology, allowing it to be erased and reprogrammed multiple times without removal from the circuit board using specific voltage pulses. This distinguishes it from one-time programmable counterparts like the GAL16V8D.

Programmable Logic Device Pld Replacement Considerations

Direct pin-compatible replacements include other GAL16V8 variants such as the Lattice GAL16V8B or Atmel GAL16V8C. When substituting, verify that the replacement part supports the same 12 ns speed grade and maintains compatibility with the existing programming equipment used for EEPROM erasure.