XC3S400-4TQ144C

The XC3S400-4TQ144C is a Spartan®-3 field programmable gate array (FPGA) IC from AMD, provided in a 144-pin LQFP package. It delivers a balance of programmable logic, embedded memory, and I/O capacity targeted at commercial-grade embedded designs.

With 8,064 logic elements, approximately 0.295 Mbits of on-chip RAM and 97 I/Os, this device is suitable for designs that require moderate logic density and flexible I/O while maintaining a compact surface-mount footprint.

Key Features

• Logic Capacity — 8,064 logic elements with 896 CLB resources to implement custom parallel and sequential logic functions.
• Embedded Memory — Approximately 0.295 Mbits (294,912 bits) of on-chip RAM for FIFOs, small buffers, and state storage.
• I/O Resources — 97 available I/O pins to interface with peripherals, sensors, and external devices.
• Gate Equivalent — Contains approximately 400,000 gates to support complex logic implementations.
• Power — Operates from a core supply range of 1.14 V to 1.26 V to match system power rails.
• Package & Mounting — 144-LQFP package case; supplier device package listed as 144-TQFP (20×20); surface-mount mounting type for PCB assembly.
• Operating Conditions — Commercial grade with an operating temperature range of 0 °C to 85 °C.
• Compliance — RoHS compliant for lead-free manufacturing processes.

Typical Applications

• Custom digital control — Implement control logic and state machines using up to 8,064 logic elements and embedded RAM for small buffers and queues.
• I/O expansion and glue logic — Use 97 I/Os to bridge and adapt peripherals, bus interfaces, and board-level signaling.
• Prototyping and evaluation — Compact 144-pin LQFP package makes the device suitable for development boards and proof-of-concept designs where moderate logic density is required.

Unique Advantages

• Balanced logic and memory — 8,064 logic elements combined with approximately 0.295 Mbits of RAM provide a practical mix for control, buffering, and custom logic functions without excessive board area.
• Ample I/O count — 97 I/Os enable flexible interfacing options, reducing the need for additional level translators or I/O expanders.
• Compact surface-mount package — 144-LQFP (supplier 144-TQFP 20×20) supports high-density PCB layouts and standard reflow assembly processes.
• Commercial-grade suitability — Rated for 0 °C to 85 °C operation to meet typical commercial application requirements.
• RoHS compliant — Meets lead-free compliance expectations for modern electronics assembly.

Why Choose XC3S400-4TQ144C?

The XC3S400-4TQ144C positions itself as a practical Spartan®-3 FPGA option for commercial embedded systems that need moderate programmable logic, on-chip RAM, and a robust I/O count in a compact surface-mount package. Its combination of 8,064 logic elements, approximately 0.295 Mbits of embedded memory, and 97 I/Os delivers capability for a range of control, interface, and prototyping tasks while fitting standard PCB assembly flows.

This AMD Spartan®-3 device is suited for engineers and procurement teams who require a reliable, RoHS-compliant FPGA with defined voltage and temperature operating ranges and a readily integrable 144-pin package. Manufacturer documentation is available to support design integration and validation.

Request a quote or submit an inquiry to obtain pricing and availability for the XC3S400-4TQ144C.