The PALCE16V8H-25E4/BRA is a high-performance Erasable Programmable Logic Device (EPLD) manufactured by AMD (now part of Xilinx). It belongs to the PALCE16V8 family, which provides a versatile and configurable solution for implementing custom logic functions. EPLDs offer the advantage of being reprogrammable, allowing for design modifications and corrections without replacing the device.

Applications

• Address decoding in memory systems
• Peripheral controllers in embedded systems
• Glue logic in digital circuits
• State machine implementation
• Combinatorial logic circuits

Features

• Electrically erasable and reprogrammable
• Eight configurable macrocells
• Programmable output polarity
• Input/Output (I/O) pins with programmable direction
• TTL compatible

Benefits

• Flexibility to modify logic designs without replacing the device
• Simplified design process through programmable logic
• Reduced chip count compared to discrete logic
• Improved system performance due to fast propagation delay
• Cost-effective solution for custom logic requirements

Additional Details

The PALCE16V8H-25E4/BRA features configurable macrocells that can be programmed to implement various logic functions. The '25' in the part number indicates a propagation delay of 2.5 nanoseconds. The 'H' likely signifies a high-performance variant. The 'E4' probably indicates a specific temperature range or package option, while 'BRA' might represent a specific customer or manufacturing location. The device is programmed using standard PAL programmers. Refer to the AMD (now Xilinx) datasheet for detailed programming instructions, electrical characteristics, and timing specifications to ensure proper implementation of logic functions. The PALCE16V8H is commonly used in applications where fast prototyping and design flexibility are important.