AMD XC2S50-5PQ208I

Overview

XC2S50-5PQ208I from AMD (formerly Xilinx) is a Spartan-II family FPGA with 50,000 system gates, 5 ns logic delay, and 176 user I/Os in a 208-pin PQFP package. It integrates configurable logic blocks, distributed RAM, and global clock networks for digital logic implementation in industrial control and communication interface designs.

For engineers reviewing the XC2S50-5PQ208I datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, speed grade (-5), and PQFP thermal and routing constraints in space-constrained PCB layouts.

Technical Context

The XC2S50-5PQ208I implements synchronous logic using 4-input LUTs and flip-flops per CLB, with dedicated carry logic for arithmetic functions. It supports IEEE 1149.1 JTAG boundary-scan testing and in-system configuration via serial PROM or microprocessor interface.

Configuration is loaded on power-up from external PROM or through SelectMAP parallel mode. The device uses SRAM-based configuration memory, requiring reinitialization after each power cycle, and supports multi-boot via dual-PROM addressing.

Key Specifications

Pinout & Package

PQ208 package: 208-pin plastic quad flat pack with exposed thermal pad (non-electrical), 28 × 28 mm body size, 0.5 mm lead pitch, and gull-wing leads. Compatible with standard surface-mount reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC2S50-5PQ208I, XC2S50-6PQ208C trades industrial temperature tolerance for improved timing margin, while XC2S100-5PQ208I retains compatibility but increases gate count and power - both require no PCB redesign but differ in thermal and timing validation scope.

Availability

XC2S50-5PQ208I is available at Aetrix Electronics and suitable for industrial motion control, legacy bus bridging, and communications line card designs requiring stable component supply and long-term obsolescence management.

Supply support for XC2S50-5PQ208I 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 develops adaptive computing platforms including FPGAs, adaptive SoCs, and AI engines for heterogeneous compute acceleration.

The Spartan-II family, including XC2S50-5PQ208I, was originally designed for cost-sensitive, high-volume embedded logic applications requiring predictable timing and mixed-voltage I/O flexibility.

FAQ

What is the operating temperature range for XC2S50-5PQ208I?

The XC2S50-5PQ208I is rated for industrial temperature operation from -40°C to +100°C. This range ensures reliable functionality in harsh environments such as factory automation controllers and outdoor telecom equipment. The 'I' suffix explicitly denotes industrial grade, and thermal derating guidelines apply above 85°C ambient.

Does XC2S50-5PQ208I support in-system programming?

Yes, XC2S50-5PQ208I supports in-system programming via its JTAG port (TCK/TMS/TDI/TDO) and SelectMAP parallel interface. Configuration data can be loaded dynamically by a host processor without requiring device power cycling, enabling field updates and partial reconfiguration in supported architectures.

What configuration memory options are compatible with XC2S50-5PQ208I?

XC2S50-5PQ208I supports master serial configuration from Xilinx XC18V00-series or Platform Flash PROMs, as well as slave serial and SelectMAP modes driven by microcontrollers or FPGAs. External PROM must match 3.3 V I/O levels and support fast read access to meet startup timing requirements.

Can XC2S50-5PQ208I replace XC2S50-5PQ208C in an existing design?

XC2S50-5PQ208I is pin-compatible and functionally identical to XC2S50-5PQ208C, differing only in temperature rating (industrial vs. commercial). No PCB or firmware changes are required, but thermal validation must confirm operation across -40°C to +100°C ambient conditions.

Is the XC2S50-5PQ208I still in production or subject to obsolescence?

The XC2S50-5PQ208I is discontinued by AMD/Xilinx but remains available through authorized distributors and Aetrix Electronics' extended lifecycle program. Last-time-buy advisories and cross-reference guidance for Spartan-6 or Artix-7 migration paths are provided upon request for long-term design continuity.