XCR3256XL-7TQG144C

Overview

The XCR3256XL-7TQG144C is a Complex Programmable Logic Device (CPLD) from the CoolRunner-XPLA3 family, manufactured by AMD. It features 256 macrocells and 6000 system gates, housed in a 144-pin TQFP package. The device operates within a supply voltage range of 3 V to 3.6 V and supports an industrial temperature range of 0°C to +70°C. Key electrical specifications include a maximum propagation delay of 7 ns and a maximum operating frequency of 154 MHz. It utilizes EEPROM technology for non-volatile configuration storage.

Feature Summary

• 256 Macrocells with 6000 System Gates
• 120 I/O Pins in 144-Pin TQFP Package
• EEPROM Non-Volatile Configuration Storage
• System-In-Programmable (SIP) Capability

Applications

• Interface bridging between different logic families
• Address decoding and control logic generation
• State machine implementation in embedded systems
• Clock buffering and distribution

Procurement Notes

Verify component authenticity through authorized distributors or certified secondary market suppliers. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to soldering. Check for obsolescence notices or product change notifications (PCN) issued by AMD regarding this specific part number.

Selection Notes

Select this model when 256 macrocells are sufficient for the design complexity. Ensure the 144-pin TQFP footprint matches the PCB layout constraints. Verify that the 7 ns delay meets timing requirements for the target clock speed. Consider power consumption limits relative to the 30 mA typical operating current.

Part Context

This component belongs to the XCR3256XL series, part of AMD's CoolRunner-XPLA3 CPLD line. These devices are designed for low-power, high-density applications requiring non-volatile programmability. The series offers a balance of performance and density suitable for general-purpose logic replacement.

Replacement Considerations

Direct pin-to-pin replacements may be limited due to obsolescence. Evaluate alternative CPLDs with similar macrocell counts and I/O configurations. Verify compatibility with existing programming tools and software environments before substitution.