AMD XC2S50-5TQ144I

Overview

XC2S50-5TQ144I from AMD (formerly Xilinx) is a Spartan-II family FPGA with 50,000 system gates, 144-pin TQFP package, 5 ns logic delay, and industrial temperature range (–40°C to +100°C). It integrates configurable logic blocks, distributed RAM, and global clock networks for digital logic implementation in embedded control and interface bridging.

For engineers reviewing the XC2S50-5TQ144I datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (117 user I/Os), configuration mode support (Master Serial, Slave Parallel), internal voltage (2.5 V core), and IEEE 1149.1 JTAG boundary-scan compliance.

Technical Context

The XC2S50-5TQ144I implements a fine-grained architecture with 1728 configurable logic blocks (CLBs), each containing two 4-input LUTs and associated flip-flops. It supports synchronous design with four global clock lines and dedicated clock enable/reset routing.

Configuration is performed via external PROM or processor-controlled parallel/serial modes. The device uses SRAM-based configuration memory, requiring reinitialization at power-up, and includes internal startup circuitry with programmable DONE pin behavior and optional CCLK gating.

Key Specifications

Pinout & Package

XC2S50-5TQ144I is housed in a 144-pin Thin Quad Flat Pack (TQFP) with 0.5 mm pitch, 20 mm × 20 mm body size, and exposed thermal pad (non-electrical). Package meets JEDEC MS-026 standard and supports reflow soldering per IPC/JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based logic implementation applications.

Compared with XC2S50-5TQ144I, XCV300-4PQ240C offers greater logic density but demands higher power and board space, while XC2S50-5PQ208I preserves identical functionality at the cost of mechanical incompatibility - both require schematic and layout revision.

Availability

XC2S50-5TQ144I is available at Aetrix Electronics and suitable for industrial automation, legacy system upgrades, and medical device signal processing requiring stable component supply across extended product lifecycles.

Supply support for XC2S50-5TQ144I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

AMD acquired Xilinx in 2022 and now oversees the legacy Spartan, Virtex, and Artix FPGA families. Xilinx pioneered SRAM-based FPGAs for reconfigurable digital logic.

The Spartan-II family, including XC2S50-5TQ144I, was engineered for cost-sensitive, high-volume embedded applications requiring predictable timing, industrial temperature operation, and minimal external configuration components.

FAQ

What is the configuration method supported by XC2S50-5TQ144I?

The XC2S50-5TQ144I supports Master Serial (via PROM), Slave Parallel (via microprocessor), and IEEE 1149.1 JTAG modes. Configuration bitstream is loaded into on-chip SRAM, requiring power-cycle reload. The XC2S50-5TQ144I does not support active-HS mode or internal flash storage - external configuration memory is mandatory for standalone operation.

Does XC2S50-5TQ144I support mixed-voltage I/O operation?

Yes, XC2S50-5TQ144I supports mixed-voltage I/O through independent bank power supplies (VCCO). Each I/O bank can be set to 3.3 V, 2.5 V, or 1.8 V logic levels, enabling direct interfacing with diverse peripherals without level-shifters. The XC2S50-5TQ144I requires separate decoupling for each VCCO rail and strict adherence to bank voltage compatibility rules per Xilinx DS001 specification.

What is the maximum operating frequency of XC2S50-5TQ144I in real designs?

The XC2S50-5TQ144I is rated for 125 MHz system clock performance under typical conditions using Xilinx ISE tools with optimized placement and routing. Actual achievable frequency depends on logic depth, routing congestion, and I/O timing constraints. The XC2S50-5TQ144I achieves this with its 5 ns CLB delay and four dedicated global clock nets - verified in Xilinx application note XAPP161 for motor control reference designs.

Is XC2S50-5TQ144I qualified for industrial temperature operation?

Yes, XC2S50-5TQ144I is specified for –40°C to +100°C ambient operation and fully tested across this range per Xilinx specification DS001. It includes thermal shutdown protection and process-corner compensation to maintain timing integrity. The XC2S50-5TQ144I is commonly deployed in DIN-rail mounted PLC modules and outdoor telemetry units where extended temperature stability is required.

Can XC2S50-5TQ144I be programmed in-system via JTAG?

Yes, XC2S50-5TQ144I supports full IEEE 1149.1 JTAG boundary-scan for in-system programming, debugging, and testing. The TDO, TDI, TCK, and TMS pins are dedicated and electrically isolated from user I/O. Programming the XC2S50-5TQ144I via JTAG requires a compliant cable (e.g., Xilinx DLC10) and iMPACT software - no external configuration PROM is needed for development or field updates.