PAL20X4AMW883B

Programmable Logic Device Pld Overview

The PAL20X4AMW/883B is a high-performance Programmable Logic Device (PLD) manufactured by Advanced Micro Devices (AMD). It belongs to the PAL20X4 family, featuring an OT PLD architecture with a propagation delay of 35ns and TTL input compatibility. The device is housed in a 20-pin CDFP ceramic flatpack package, designed for military or aerospace environments as indicated by the /883B suffix. It operates within a temperature range of -55°C to 125°C and supports a maximum clock frequency of 18 MHz.

Programmable Logic Device Pld Feature Summary

• PAL-type architecture with 20 dedicated inputs and 4 registered outputs
• 35ns typical propagation delay for high-speed logic applications
• TTL-compatible inputs ensuring interface versatility
• Military-grade qualification via MIL-PRF-38534 Class H or K (/883B suffix)

Programmable Logic Device Pld Applications

• High-speed state machine implementation
• Address decoding in complex bus systems
• Timing control and synchronization circuits
• Logic replacement in legacy military avionics

Programmable Logic Device Pld Procurement Notes

Verify the authenticity of the /883B suffix to ensure compliance with MIL-PRF-38534 standards. Confirm the specific class (H or K) required for your environmental specifications. Check for date codes and lot traceability documentation. Ensure the ceramic flatpack package integrity is intact upon receipt. Validate that the component matches the exact PAL20X4AMW/883B designation to avoid pinout mismatches.

Programmable Logic Device Pld Selection Notes

Select this component when a registered output configuration with 20 inputs is required. The 35ns delay suits applications needing faster response than standard PAL16L8 devices. Consider the CDFP package for hermetic sealing needs in harsh environments. Compare against PAL20R4 if unregistered outputs are acceptable for cost reduction. Ensure voltage levels match the system's 5V TTL requirements.

Programmable Logic Device Pld Part Context

This part is part of AMD's PAL20X4 series, a widely used line of programmable logic devices from the late 1980s and 1990s. The 'A' typically denotes an advanced speed grade compared to earlier versions. The /883B indicates it is a batch-controlled device meeting military reliability standards, often sourced from surplus or specialized distributors rather than standard consumer channels.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements may include other PAL20X4 variants from AMD or compatible manufacturers like Lattice or Atmel, provided they meet the same electrical and timing specs. Verify that any substitute also carries the necessary military qualification if operating in regulated environments. Check for updated packaging options if CDFP is unavailable.