AMD XC3S100E-4VQ100I

Overview

XC3S100E-4VQ100I from AMD (formerly Xilinx) is a Spartan-3E FPGA with 100,000 system gates, 1,728 logic cells, and 100 I/O pins in a 100-pin VQFP package. It operates at -4 speed grade (tPD = 4.5 ns), supports SelectIO standards including LVCMOS, LVTTL, and PCI, and targets low-cost embedded control and interface bridging applications.

For engineers reviewing the XC3S100E-4VQ100I datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count, speed grade timing, configuration mode support (Master Serial, Slave Serial, JTAG), and embedded RAM capacity for local buffering.

Technical Context

The XC3S100E-4VQ100I implements a configurable logic block (CLB) architecture with four-input LUTs and flip-flops per slice, enabling synchronous digital logic implementation. It integrates 120 KB of total block RAM (distributed + block RAM), dual-port capability, and supports configuration via external PROM or processor-controlled slave parallel mode.

It features dedicated digital clock manager (DCM) blocks providing clock doubling, phase shifting, and duty cycle correction - critical for timing-critical interfaces like video data capture or high-speed serial bridging. Configuration is performed through IEEE 1149.1 JTAG boundary-scan or serial mode using on-chip startup circuitry.

Key Specifications

Pinout & Package

XC3S100E-4VQ100I uses a 100-pin Very Thin Quad Flat Pack (VQFP) with 0.5 mm pitch, 14 × 14 mm body, and exposed pad for thermal dissipation. Pin assignment follows Xilinx Spartan-3E pinout conventions with dedicated configuration, clock, and JTAG signals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based interface and control applications.

Compared with XC3S200-4VQ100C and XC3S50A-4VQ100C, the XC3S100E-4VQ100I offers optimal balance of logic density, I/O count, and DCM availability for mid-tier embedded interface consolidation - avoiding unnecessary cost or resource waste while ensuring sufficient margin for timing-critical functions.

Availability

XC3S100E-4VQ100I is available at Aetrix Electronics and suitable for industrial automation, embedded instrumentation, and video interface design requiring stable component supply and long-term manufacturability.

Supply support for XC3S100E-4VQ100I 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 maintains the Spartan family as part of its adaptive computing portfolio for cost-sensitive, high-volume embedded systems.

The Spartan-3E product line was designed specifically for low-power, low-cost programmable logic applications in industrial control, consumer electronics, and communications infrastructure.

FAQ

What configuration modes does the XC3S100E-4VQ100I support?

The XC3S100E-4VQ100I supports Master Serial (via on-chip oscillator), Slave Serial, Slave Parallel, and JTAG configuration modes. It uses external PROM or microcontroller-driven configuration in Slave modes, and allows in-system reprogramming via JTAG. The XC3S100E-4VQ100I's CONFIG_DONE and INIT_B pins provide hardware handshaking for reliable boot sequencing.

Does the XC3S100E-4VQ100I include built-in clock management?

Yes, the XC3S100E-4VQ100I integrates four Digital Clock Managers (DCMs) that provide clock multiplication, phase shifting, frequency synthesis, and duty cycle correction. These DCMs operate independently and support input frequencies from 1.5 MHz to 200 MHz, making the XC3S100E-4VQ100I suitable for applications requiring precise timing alignment such as video pixel clocking or ADC sampling synchronization.

What I/O standards are supported by the XC3S100E-4VQ100I?

The XC3S100E-4VQ100I supports LVCMOS, LVTTL, PCI, HSTL, and SSTL I/O standards across its 100-pin VQFP package. Each I/O bank is independently configurable for voltage levels from 1.2 V to 3.3 V, enabling mixed-signaling interfaces. This flexibility allows the XC3S100E-4VQ100I to directly connect to diverse peripherals without level-shifting components.

Is the XC3S100E-4VQ100I RoHS compliant?

Yes, the XC3S100E-4VQ100I is RoHS compliant and lead-free, meeting EU Directive 2011/65/EU requirements. The VQFP package uses matte tin finish on leads and complies with JEDEC J-STD-020 moisture sensitivity level 3 (MSL3). This ensures compatibility with standard reflow profiles and environmental compliance for global industrial deployments using the XC3S100E-4VQ100I.

What is the maximum operating temperature range for the XC3S100E-4VQ100I?

The XC3S100E-4VQ100I is rated for industrial temperature operation from –40 °C to +100 °C junction temperature. Its -4 speed grade and thermal design support sustained operation in enclosed enclosures or high-ambient environments typical of factory automation and outdoor instrumentation. Thermal performance is validated per Xilinx DS312 specification for the XC3S100E-4VQ100I.