AMD XC2S150-5FG256I

Overview

XC2S150-5FG256I from AMD (formerly Xilinx) is a Spartan-II family FPGA with 150,000 system gates, 1728 logic cells, and a 5 ns maximum input-to-output delay. It features 224 I/O pins, embedded block RAM, and supports LVCMOS/LVTTL I/O standards. It is used in industrial control logic and reconfigurable digital signal processing subsystems.

For engineers reviewing the XC2S150-5FG256I datasheet, pinout, applications, or equivalent options, key selection considerations include logic density, I/O count, speed grade (-5), and FG256 flip-chip BGA package compatibility with thermal and routing constraints.

Technical Context

The XC2S150-5FG256I implements configurable logic blocks (CLBs) with four-input LUTs and flip-flops, distributed RAM, and dedicated carry logic for arithmetic. It includes eight global clock buffers and supports internal clock division via DLL-based clock management.

Configuration is performed via serial mode using an external PROM or master processor through the JTAG boundary-scan interface. The device operates at 2.5 V core voltage and supports 3.3 V or 2.5 V I/O banks with programmable drive strength and slew rate control.

Key Specifications

Pinout & Package

XC2S150-5FG256I is housed in a 256-ball flip-chip BGA (FG256) package with 1.0 mm ball pitch, thermal pad on underside, and standard JEDEC MO-205 footprint. Pin assignment follows Xilinx Spartan-II pinout conventions with dedicated configuration, clock, and I/O bank groups.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA logic and I/O expansion applications.

Compared with XC2S150-5FG256I, the XC2S150-6FG256C trades timing margin for lower cost in benign environments, while XC2S200-5FG256I extends logic capacity within identical mechanical and thermal constraints.

Availability

XC2S150-5FG256I is available at Aetrix Electronics and suitable for industrial motion control, medical imaging interfaces, and test & measurement equipment requiring stable component supply and long-term obsolescence planning.

Supply support for XC2S150-5FG256I 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 and supports the Spartan, Virtex, and Artix FPGA families originally introduced by Xilinx.

The Spartan-II product line was designed for cost-sensitive, high-volume applications requiring moderate logic density, fast I/O, and deterministic timing - especially in industrial automation and embedded control.

FAQ

What is the operating temperature range for XC2S150-5FG256I?

The XC2S150-5FG256I is rated for industrial temperature operation from –40°C to +85°C. This range ensures reliable functionality in factory-floor controllers, outdoor instrumentation, and automotive under-hood modules where ambient thermal stress exceeds commercial-grade limits. The FG256 package's thermal pad aids heat dissipation under sustained logic activity.

Does XC2S150-5FG256I support in-system programming?

Yes, XC2S150-5FG256I supports in-system programming via its IEEE 1149.1 JTAG interface (TCK/TMS/TDI/TDO pins). Configuration bitstreams can be loaded dynamically during operation using a host processor or dedicated JTAG controller, enabling field-upgradable logic functions without physical rework or device replacement.

What power supply requirements does XC2S150-5FG256I have?

XC2S150-5FG256I requires a regulated 2.5 V ±0.1 V supply for VCCINT (core logic) and separate 3.3 V or 2.5 V supplies for each I/O bank (VCCO). Decoupling capacitors must be placed near all VCCINT and VCCO pins per Xilinx Spartan-II PCB layout guidelines to maintain signal integrity and prevent configuration failure.

Can XC2S150-5FG256I replace XC2S100-5FG256I in an existing design?

Yes, XC2S150-5FG256I is pin-compatible with XC2S100-5FG256I in the FG256 package and shares identical power, clock, and configuration pinouts. The higher gate count and CLB count of XC2S150-5FG256I allow functional upgrades without PCB revision, provided thermal and power delivery margins accommodate the increased logic utilization.

What configuration modes are supported by XC2S150-5FG256I?

XC2S150-5FG256I supports Master Serial, Slave Serial, Slave Parallel, and JTAG configuration modes. External PROMs (e.g., Xilinx XC18V02) are commonly used in Master Serial mode, while microcontrollers often drive Slave Parallel mode for dynamic reconfiguration. JTAG is used for debugging and initial programming.