XCR3256XL-7PQG208C

Overview

The XCR3256XL-7PQG208C is an Electrically Erasable Programmable Logic Device (EE PLD) manufactured by AMD, formerly Xilinx. It operates with a maximum clock frequency of 140 MHz and features a propagation delay of 7 ns. The component utilizes a PQFP-208 package containing 208 pins and provides 164 I/O lines. It supports system-in-programmability and includes JTAG boundary scan capabilities for testing.

Feature Summary

• Electrically Erasable Programmable Logic Device (EE PLD)
• Maximum clock frequency of 140 MHz
• 7 ns propagation delay
• 208-pin Plastic Quad Flat Package (PQFP)
• Supports System-In-Programmability (SIP)

Applications

• Logic replacement in embedded systems
• Address decoding and control logic
• Interface bridging between different voltage domains

Procurement Notes

Verify the manufacturer designation as AMD or Xilinx on the component marking. Confirm the specific suffix 'C' indicates commercial temperature range operation. Ensure the package type matches the PQFP-208 specification before integration into the design.

Selection Notes

Select this component when a non-volatile programmable logic solution with electrical erasability is required. The 7 ns speed grade suits applications needing moderate switching speeds. Verify that the 208-pin form factor fits the available PCB real estate and that the I/O count meets the interface requirements.

Part Context

This part belongs to the XC3000XL family of EE PLDs. These devices are designed to replace complex discrete logic gates. They offer reprogrammability without the need for UV erasure, distinguishing them from earlier EPROM-based PLDs in the same lineage.

Replacement Considerations

Check for pin-compatible alternatives within the XC3000XL series. Verify if higher speed grades like the -10 variant are available if timing constraints allow. Ensure any substitute maintains the PQFP-208 package and EE PLD functionality.