AMD XC3S100E-4VQG100C

Overview

XC3S100E-4VQG100C from AMD (formerly Xilinx) is a Spartan-3E FPGA with 100,000 system gates, 1,728 logic cells, and 100-pin VQFP packaging. It operates at -4 speed grade (tPD = 4.5 ns), supports 3.3V I/O, and includes embedded block RAM (36 Kbits) and DLL clock management. It is used in industrial control logic and low-cost communication interface bridging.

For engineers reviewing the XC3S100E-4VQG100C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O voltage compatibility, DLL-based clock deskew capability, and availability of dedicated multipliers for DSP-lite functions.

Technical Context

The XC3S100E-4VQG100C implements a configurable logic fabric based on 4-input LUTs and flip-flops, with distributed RAM and shift register capability per CLB. It integrates twelve 18×18-bit signed multipliers and supports SelectIO standards including LVCMOS, LVTTL, and PCI.

Its Digital Clock Manager (DCM) provides input jitter filtering, frequency synthesis (×2 to ×16), phase shifting (–180° to +180°), and duty cycle correction. Configuration is performed via Master Serial mode using external PROM or JTAG boundary-scan.

Key Specifications

Pinout & Package

XC3S100E-4VQG100C uses a 100-pin Very Thin Quad Flat Pack (VQFP) package with 0.5 mm pitch, 14 × 14 mm body size, and exposed pad for thermal dissipation. Pin assignment follows Xilinx Spartan-3E pinout standard for VQ100 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC3S100E-4VQG100C, the XC3S200E-4VQG100C offers headroom for feature expansion without board revision, while the XC3S50E-4VQG100C reduces unit cost and power where logic resources are underutilized - both maintain identical pin compatibility and DCM functionality.

Availability

XC3S100E-4VQG100C is available at Aetrix Electronics and suitable for industrial control systems, legacy interface bridging, and low-cost video timing applications requiring stable component supply and long-term manufacturing support.

Supply support for XC3S100E-4VQG100C 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, ACAPs, and related development tools for heterogeneous compute acceleration.

The Spartan-3E family was designed for cost-sensitive, high-volume applications requiring reliable programmable logic with integrated clock management and I/O flexibility - targeting industrial automation, consumer electronics, and communications infrastructure.

FAQ

What is the maximum operating frequency supported by the XC3S100E-4VQG100C?

The XC3S100E-4VQG100C supports a maximum internal clock frequency of 315 MHz when using the Digital Clock Manager (DCM) for frequency synthesis. This value is guaranteed for the -4 speed grade under commercial temperature conditions (0°C to 85°C) and 3.3V VCCINT. The actual achievable frequency depends on design placement and routing, but the DCM ensures deterministic timing alignment across clock domains in the XC3S100E-4VQG100C.

Does the XC3S100E-4VQG100C support JTAG boundary-scan testing?

Yes, the XC3S100E-4VQG100C fully supports IEEE 1149.1 JTAG boundary-scan testing. Pins TCK, TMS, TDI, and TDO are dedicated for this purpose and operate at 3.3V compatible levels. JTAG enables in-circuit configuration, debugging, and verification of interconnect integrity without requiring external test fixtures - a standard capability confirmed in the XC3S100E-4VQG100C device documentation.

Can the XC3S100E-4VQG100C be configured using an external SPI PROM?

Yes, the XC3S100E-4VQG100C supports Master Serial configuration mode using industry-standard 4-wire SPI PROMs such as XCF01S, XCF02S, or XCF04S. The configuration process loads bitstream data automatically on power-up via dedicated configuration pins. This method is widely used in production for unattended boot and is fully documented for the XC3S100E-4VQG100C in Xilinx UG332.

What I/O voltage standards are supported by the XC3S100E-4VQG100C?

The XC3S100E-4VQG100C supports LVCMOS 3.3V, LVTTL, and PCI-compliant I/O standards across its 82 user-configurable I/O pins. Each I/O bank has independent VCCO supply, allowing mixed-voltage operation. Input thresholds and drive strengths are programmable per pin, and all standards are verified for timing compliance in the XC3S100E-4VQG100C datasheet.

Is the XC3S100E-4VQG100C RoHS compliant?

Yes, the XC3S100E-4VQG100C is RoHS compliant and lead-free, meeting Directive 2011/65/EU requirements. The VQG100 package variant uses matte tin finish and halogen-free molding compound. Compliance documentation, including test reports and material declarations, is available through AMD's product change notifications for the XC3S100E-4VQG100C.