XCR3256XL-12TQ144I

Overview

The XCR3256XL-12TQ144I is a Complex Programmable Logic Device (CPLD) from the XCR3256XL series, manufactured by AMD/Xilinx. It features 256 macrocells and supports up to 120 I/Os within a TQFP-144 surface-mount package. The device operates on a supply voltage ranging from 3 V to 3.6 V and utilizes EEPROM storage technology for non-volatile configuration. Key electrical specifications include a maximum operating frequency of 154 MHz, a typical propagation delay of 7 ns, and a maximum operating temperature of +70°C. The component contains approximately 6000 gates organized into two logic array blocks.

Feature Summary

• High-density architecture with 256 macrocells and 6000 usable gates
• EEPROM-based non-volatile memory for instant-on functionality
• Supports 120 user I/O pins in a TQFP-144 package
• Operating frequency up to 154 MHz with 7 ns propagation delay

Applications

• Industrial control systems requiring deterministic logic
• Consumer electronics logic interfacing
• Automotive auxiliary control modules
• General-purpose digital logic replacement

Procurement Notes

Verify component authenticity due to potential availability constraints. Confirm that the 'I' suffix denotes the industrial temperature range (0°C to +70°C). Check RoHS compliance status as indicated in official datasheets. Ensure handling procedures account for moisture sensitivity levels specified in the manufacturing documentation.

Selection Notes

Select this model when a moderate density CPLD with non-vatile configuration is required. Compare against the LC4256V series if lower propagation delays or different voltage ranges are necessary. Ensure the design fits within the 256 macrocell limit and that the TQFP-144 package dimensions align with the PCB layout constraints.

Part Context

This component belongs to the XCR3256XL family, which represents an enhanced version of earlier XCR3000 devices. The XL series offers improved performance and density while maintaining compatibility with existing design tools. It serves as a bridge between low-density PALs and high-density FPGAs for mid-range logic applications.

Replacement Considerations

Publicly confirmed direct substitutes are not available in the provided source material. Designers may consider the LC4256V series for similar macrocell counts but with different timing characteristics. Verify pinout compatibility before attempting any cross-referencing.