AMD XCR3256XL-7TQG144C

Overview

XCR3256XL-7TQG144C from AMD is a low-power XCR3000XL CPLD intended for always-on programmable logic, interface consolidation, and higher-density control-plane integration in portable and embedded systems. The device combines 128 macrocells, in-system programmability, and very low standby-current architecture in a 144-LQFP package for designs that need more logic headroom than the smaller zero-power CPLD classes.

The XCR3000XL CPLD series provides Fast Zero Power logic behavior, deterministic CPLD timing, JTAG-based programming, and nonvolatile programmable control resources in compact packages. For engineers reviewing the XCR3256XL-7TQG144C datasheet, XCR3256XL-7TQG144C pinout, XCR3256XL-7TQG144C application, or XCR3256XL-7TQG144C equivalent, this device is widely used in low-power control logic, interface glue logic, industrial board management, bus decoding, communications control planes, and power-sensitive programmable board-support designs.

Technical Context

In embedded electronics, XCR3256XL-7TQG144C serves as a CPLD for higher-density glue logic, state sequencing, protocol adaptation, and local control functions. Its 128-macrocell resource level makes it practical when the board needs substantially more programmable logic than the 64-macrocell class but still benefits from CPLD-style deterministic timing and nonvolatile startup behavior.

The XCR3000XL architecture emphasizes very low standby current and CPLD predictability rather than FPGA-style fabric complexity. This makes it useful in systems where the logic requirement is broad but the product still values always-on behavior, field programmability, and straightforward CPLD bring-up.

XCR3256XL-7TQG144C is commonly selected when a board needs low-power programmable logic with more macrocell headroom, JTAG programmability, and enough density to consolidate several board-support functions into one CPLD.

Key Specifications

Pinout & Package

The XCR3256XL-7TQG144C pinout includes programmable I/O, JTAG programming pins, clock/control inputs, and dedicated supply and ground connections in the 144-LQFP outline.

For PCB design, designers typically keep JTAG access available, decouple the local supply well, and assign timing-sensitive interface signals carefully so the CPLD can support deterministic board-level behavior.

Key Features

• 128-macrocell CPLD architecture supports higher-density control logic.
• Fast Zero Power positioning suits low-standby systems.
• Nonvolatile programmable logic retains function after power cycling.
• JTAG-based in-system programming supports updates and test access.
• Package options support larger board-support logic integration.
• Deterministic CPLD timing suits glue logic and supervisory roles.

Applications

Equivalent & Alternatives

When evaluating a XCR3256XL-7TQG144C equivalent, engineers should compare macrocell count, low-power behavior, timing grade, package, and CPLD architecture.

Compared with XC2C128-6VQG100C, XCR3256XL-7TQG144C selection depends on whether the design should remain in the XCR3000XL architecture or move to a CoolRunner-II CPLD platform. XCR3256XL-7TQG144C vs XC95144XL-10TQG100C selection depends on power behavior, architecture continuity, and board-level logic-fit priorities.

Quality

XCR3256XL-7TQG144C should be sourced as original AMD programmable logic inventory through traceable channels. Quality checks may include package inspection, top-mark validation, JTAG-programming verification, and logic-image loading tests.

Production validation should include standby-current expectations, logic timing, boundary-scan access, I/O-voltage verification, and signal-integrity review on interface-critical pins.

Availability

XCR3256XL-7TQG144C is suitable for low-power programmable control logic, glue logic, and embedded board-support applications requiring higher-density XCR3000XL CPLD functionality.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

Supply support may include volume procurement planning, scheduled delivery arrangements, traceable sourcing management, and long-term supply support for OEM, industrial electronics, automotive electronics, and embedded product programs. Sample and NPI supply support, as well as urgent in-stock supply support, can also be arranged for prototype builds, pilot runs, and time-critical production needs.

Manufacturer

AMD is a semiconductor manufacturer whose adaptive computing and programmable logic portfolio includes FPGA devices, CPLDs, configuration solutions, embedded processing platforms, and related development technologies for industrial, communication, computing, automotive, and embedded electronic systems.

The XCR3000XL family is a low-power nonvolatile CPLD series intended for compact programmable logic, deterministic board-support control, and always-on interface adaptation.

FAQ

What is XCR3256XL-7TQG144C used for?

XCR3256XL-7TQG144C is used for low-power programmable glue logic, control sequencing, bus adaptation, and higher-density CPLD board-support functions.

Where can I find the XCR3256XL-7TQG144C datasheet download?

The XCR3256XL-7TQG144C datasheet can be reached from the Mouser product page and AMD source material for the XCR3000XL CPLD series.

What should be considered in XCR3256XL-7TQG144C pinout design?

Designers should preserve JTAG access, decouple the supply, and verify the chosen package and speed grade against the board timing budget.

Is XCR3256XL-7TQG144C an FPGA?

No. It is a compact CPLD intended for deterministic programmable logic and control functions.

What are common XCR3256XL-7TQG144C equivalent solutions?

Common candidates include XC2C128-6VQG100C and XC95144XL-10TQG100C depending on package, architecture, and power requirements.