XCR3256XL-10TQ144I

Overview

The XCR3256XL-10TQ144I is a Complex Programmable Logic Device (CPLD) from the CoolRunner-XL series, manufactured by AMD. It features 256 macrocells and supports up to 120 I/Os in a TQFP-144 package. The device operates on a supply voltage of 2.7 V to 3.6 V with a maximum operating frequency of 154 MHz and a propagation delay of 7 ns. It utilizes EEPROM memory for non-volatile configuration and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Supports system-in-programmability with high endurance programming cycles
• Utilizes advanced CMOS EEPROM technology for non-vatile logic storage
• Integrates multiple logic array blocks for complex design implementation

Applications

• General-purpose digital logic interfacing
• Address/data bus buffering
• Protocol conversion between different logic families

Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature rating (-40°C to +85°C) compared to commercial variants. Confirm package integrity for TQFP-144 pins. Check manufacturer lifecycle status as this component may be subject to limited availability or obsolescence notices. Ensure compatibility with existing board footprints before procurement.

Selection Notes

Select this model when designing systems requiring moderate logic density with non-volatile configuration retention. The 256 macrocell count suits applications needing extensive combinational and sequential logic without external configuration memory. Consider the 120 I/O capacity for interface-heavy designs. Verify voltage level compatibility across all connected components within the 2.7V to 3.6V operational window.

Part Context

This component belongs to the AMD CoolRunner-XL family, designed for low-power CPLD applications. It bridges the gap between simple gate arrays and complex FPGAs, offering deterministic timing and easy integration. The XCR3256XL variant specifically targets cost-sensitive designs requiring reliable, reprogrammable logic solutions in compact surface-mount packages.

Replacement Considerations

Direct substitutes include other XCR3256XL variants with different speed grades or package options, such as XCR3256XL-10TQ144C. Cross-reference pinouts and electrical characteristics carefully when considering alternative manufacturers or newer generations within the same product line.