AMD XC3S250E-4VQG100I

Overview

XC3S250E-4VQG100I from AMD (formerly Xilinx) is a Spartan-3E FPGA with 250K system gates, 472 logic cells, 128 KB of block RAM, and configured for -4 speed grade in a 100-pin VQFP package; used in industrial control logic, motor drive sequencers, and low-cost video interface bridging.

For engineers reviewing the XC3S250E-4VQG100I datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (66 user I/Os), LVCMOS25/LVCMOS33 compatibility, internal clock resource availability, and supported configuration modes (Master Serial, Slave SelectMAP).

Technical Context

The XC3S250E-4VQG100I implements a fully static, 0.13 µm CMOS process FPGA architecture with configurable logic blocks (CLBs), distributed RAM, and dedicated carry logic. It supports up to 66 user I/O pins with programmable slew rate and drive strength, and includes four global clock buffers.

Configuration is performed via external PROM or processor through Master Serial, Slave Serial, or Slave SelectMAP modes. The device integrates 24 multipliers (18×18-bit), supports DDR SDRAM interfaces up to 200 MHz, and features Digital Clock Managers (DCMs) for frequency synthesis and phase alignment.

Key Specifications

Pinout & Package

Package: 100-pin Very Thin Quad Flat Pack (VQFP), 14 mm × 14 mm, 0.5 mm pitch, lead-free (RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA logic and interface applications.

Compared with XC3S250E-4VQG100I, the XC3S500E-4VQG100C offers direct footprint compatibility and gate scalability, whereas the XC6SLX16-2CSG225I provides architectural advancement at the cost of board redesign and toolchain migration.

Availability

XC3S250E-4VQG100I is available at Aetrix Electronics and suitable for industrial control, motor drive, and video interface applications requiring stable component supply across extended production lifecycles.

Supply support for XC3S250E-4VQG100I 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 data center, embedded, and edge applications.

The Spartan-3E family was designed for cost-sensitive, high-volume applications requiring reliable programmable logic with integrated memory and clock management-targeting industrial, automotive, and consumer electronics.

FAQ

What is the maximum operating frequency of the XC3S250E-4VQG100I?

The XC3S250E-4VQG100I has a -4 speed grade specifying guaranteed timing performance up to 333 MHz for internal logic paths. Actual achievable frequency depends on design complexity, routing, and clock domain usage; DCM outputs can generate clocks up to 320 MHz with jitter specifications defined in the datasheet.

Does the XC3S250E-4VQG100I support JTAG programming?

Yes, the XC3S250E-4VQG100I fully supports IEEE 1149.1 JTAG boundary-scan for programming, debugging, and interconnect testing. Pins TCK, TMS, TDI, and TDO are dedicated for this interface and operate independently of configuration mode selection.

What configuration methods are supported by the XC3S250E-4VQG100I?

The XC3S250E-4VQG100I supports Master Serial (via on-chip oscillator), Slave Serial, and Slave SelectMAP modes. Configuration bitstreams may be loaded from SPI PROM, microcontroller, or parallel flash memory depending on selected mode and external circuitry.

Is the XC3S250E-4VQG100I RoHS compliant?

Yes, the XC3S250E-4VQG100I is manufactured in a lead-free process and meets RoHS Directive 2011/65/EU requirements. The VQG suffix explicitly denotes RoHS-compliant packaging with matte tin finish and halogen-free molding compound.

Can the XC3S250E-4VQG100I interface directly with DDR SDRAM?

Yes, the XC3S250E-4VQG100I supports DDR SDRAM interfaces up to 200 MHz data rates using its I/O timing constraints and DCM-generated clocks. External termination and careful PCB layout are required to meet setup/hold timing margins specified in UG331.