AMD XC3S400-4TQG144C

Overview

XC3S400-4TQG144C from AMD is an FPGA orderable option positioned for configurable logic, memory-side control, and digital interface concentration in embedded systems. By pairing the Spartan-3 architecture with the 144-LQFP package, which keeps assembly and board escape more familiar in legacy FPGA designs, the device helps preserve programmable logic flexibility in systems that continue to rely on a proven AMD/Xilinx FPGA path.

Spartan-3 devices extend cost-sensitive FPGA capability with embedded memory resources, higher logic integration, and broader package flexibility for embedded digital systems. For engineers reviewing the XC3S400-4TQG144C datasheet, XC3S400-4TQG144C pinout, XC3S400-4TQG144C application, or XC3S400-4TQG144C equivalent, this device is widely used in embedded control platforms, industrial boards, communications hardware, digital interface modules, subsystem glue-logic replacements, and long-life programmable hardware programs.

Technical Context

In practical deployments, XC3S400-4TQG144C is chosen for how its exact FPGA density, speed grade 4 orderable option., and package align with the logic partition, routing plan, and board constraints of the target design. For many of these devices, package continuity and qualification suffix are just as important as raw logic resources.

The orderable code matters because 144-LQFP affects assembly style and I/O breakout, while the commercial temperature option indicated by the suffix. determines whether the part fits the intended deployment range. In sustaining or lifecycle-sensitive programs, those details often drive whether a specific orderable option can be released into production or service stock.

Higher Spartan-3 density point for embedded subsystem consolidation and wider programmable logic demands. In practice, this means XC3S400-4TQG144C is typically selected when the hardware still needs FPGA-based control, timing coordination, memory-side logic, or programmable interface support without forcing a platform migration to a newer architecture.

Key Specifications

Pinout & Package

The XC3S400-4TQG144C pinout includes programmable user I/O, configuration access, dedicated clocking resources, and the required power and ground rails inside the 144-LQFP package option.

For PCB work, the key concerns are package-compatible routing, configuration method continuity, power-rail integrity, and preserving the validated I/O assignment strategy already used by the target platform.

Key Features

• Field-programmable logic supports subsystem updates without redesigning fixed-function hardware.
• Package and suffix options help align the part with board-level qualification and assembly needs.
• Useful in long-life and sustaining programs that still depend on established FPGA footprints.
• Supports digital interface concentration, control logic, and embedded subsystem integration.
• Preserves programmable behavior in systems where platform migration would add validation cost.
• Applicable across industrial, embedded, and legacy communications hardware environments.

Applications

Equivalent & Alternatives

When evaluating a XC3S400-4TQG144C equivalent, engineers should compare FPGA family generation, package continuity, speed grade, operating range, logic density, and the level of redesign the system can accept.

Compared with XC3S400-4FTG256C, XC3S400-4TQG144C selection depends on exact package continuity, speed grade, and environmental suffix. XC3S400-4TQG144C vs XC3S1000-4FTG256C selection depends on whether the system should remain on the same FPGA path or shift to a nearby family or density with different integration tradeoffs.

Quality

XC3S400-4TQG144C should be sourced as original AMD/Xilinx programmable logic inventory through traceable channels. Quality checks may include package inspection, marking validation, configuration-access checks, and board-level replacement verification.

For lifecycle-sensitive programs, validation should include configuration bring-up, timing confirmation, power-sequencing review, and interface checks against the target implementation.

Availability

XC3S400-4TQG144C is relevant to embedded programmable logic, subsystem integration, and lifecycle-sensitive FPGA deployments where configurable digital behavior must be preserved.

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.

For production and service builds, confirming package continuity, lifecycle status, configuration compatibility, and sourcing stability helps reduce programmable-logic supply risk.

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.

Spartan-3 devices extend cost-sensitive FPGA capability with embedded memory resources, higher logic integration, and broader package flexibility for embedded digital systems. Higher Spartan-3 density point for embedded subsystem consolidation and wider programmable logic demands.

FAQ

What is XC3S400-4TQG144C used for?

XC3S400-4TQG144C is used for programmable digital logic, interface handling, timing coordination, and subsystem integration in embedded FPGA-based hardware.

Where can I find the XC3S400-4TQG144C datasheet download?

The XC3S400-4TQG144C datasheet is available through the confirmed source used for this AMD/Xilinx FPGA family and orderable option.

What should be considered in XC3S400-4TQG144C pinout design?

Designers should preserve package compatibility, power domains, configuration access, and validated I/O assignment when integrating or replacing the device.

Is XC3S400-4TQG144C aimed at new designs or sustaining designs?

XC3S400-4TQG144C can serve both, but many orderable options in this range are especially relevant to sustaining, compatibility-driven, or lifecycle-sensitive FPGA programs.

What are common XC3S400-4TQG144C equivalent solutions?

Common candidates include XC3S400-4FTG256C and XC3S1000-4FTG256C depending on package fit, family generation, logic density, and platform continuity goals.