AMD XC6SLX45-N3FG484I

Overview

XC6SLX45-N3FG484I from AMD (formerly Xilinx) is a Spartan-6 FPGA with 43,661 logic cells, 2.1 Mb of block RAM, and 216 DSP48A1 slices, configured in a 484-pin Fine-Pitch Ball Grid Array (FBGA) package rated for industrial temperature range (–40°C to +100°C). It targets cost-sensitive embedded control, industrial I/O bridging, and video interface applications requiring deterministic timing and low static power.

For engineers reviewing the XC6SLX45-N3FG484I datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (348 user I/Os), speed grade (-3), industrial temperature rating, and compatibility with Spartan-6 design tools and IP cores.

Technical Context

The XC6SLX45-N3FG484I implements a synchronous, SRAM-based configurable logic architecture with six-input LUTs and distributed RAM. It integrates dedicated clock management tiles (CMT) containing DCMs and PLLs for jitter reduction and frequency synthesis across up to eight independent clock networks.

It supports SelectIO™ standards including LVCMOS, LVTTL, SSTL, HSTL, and differential signaling (LVDS, TMDS, RSDS) with programmable drive strength, slew rate, and on-chip termination. Configuration is performed via Master SPI, Slave Serial, or JTAG interfaces using external PROM or processor-controlled loading.

Key Specifications

Pinout & Package

XC6SLX45-N3FG484I is housed in a 484-ball Fine-Pitch BGA (FG484) package with 348 user-configurable I/Os distributed across 12 I/O banks. Power and ground balls are arranged per Xilinx SP601 layout guidelines to minimize noise and ensure stable core and I/O supply delivery.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX45-3FGG484I, the XC6SLX45-N3FG484I adds guaranteed operation at –40°C and +100°C with validated thermal derating. Against XC7S50-2CSG324I, it offers lower cost, smaller footprint, and proven toolchain stability - ideal for mature industrial designs not requiring PCIe or advanced memory interfaces.

Availability

XC6SLX45-N3FG484I is available at Aetrix Electronics and suitable for industrial motion control, video interface bridging, and automated test equipment requiring stable component supply over extended product lifecycles.

Supply support for XC6SLX45-N3FG484I 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, Artix, Kintex, and Virtex FPGA families originally created by Xilinx.

The Spartan-6 family, including XC6SLX45-N3FG484I, was designed for cost-optimized, low-power embedded control and interface bridging in industrial, automotive, and communications infrastructure applications.

FAQ

What is the maximum supported DDR3 memory interface speed for XC6SLX45-N3FG484I?

The XC6SLX45-N3FG484I supports DDR3 SDRAM interfaces up to 667 Mbps data rate (333 MHz clock) using its dedicated I/O banks and hard memory controller logic. This speed is achievable only with the -3 speed grade and proper board-level signal integrity design, including matched trace lengths and controlled impedance routing. The XC6SLX45-N3FG484I does not integrate a hardened DDR3 PHY but relies on configurable logic and I/O timing calibration for reliable operation.

Does XC6SLX45-N3FG484I include built-in configuration memory?

No, the XC6SLX45-N3FG484I is an SRAM-based FPGA and does not include non-volatile configuration memory. It requires external configuration storage such as SPI flash (e.g., XCFxxP series PROMs or third-party SPI NOR devices) or a host processor to load the bitstream at power-up. Configuration can be initiated via Master SPI, Slave Serial, or JTAG modes depending on system architecture.

Can XC6SLX45-N3FG484I operate with a 1.8 V I/O bank voltage?

Yes, XC6SLX45-N3FG484I supports 1.8 V I/O operation in banks configured for LVCMOS18 or SSTL18 standards. Each I/O bank has independent VCCO supply pins, allowing mixed-voltage operation across different banks. However, VCCO must be stable within ±3% and properly decoupled, and the corresponding I/O standard must be selected in the UCF or XDC constraints file to ensure correct drive strength and termination settings.

What clocking resources are available on XC6SLX45-N3FG484I?

The XC6SLX45-N3FG484I contains two Clock Management Tiles (CMTs), each with two Digital Clock Managers (DCMs) and one Phase-Locked Loop (PLL). These support frequency synthesis, phase shifting, duty cycle correction, and jitter filtering. Up to eight global clock networks distribute clock signals with low skew, and additional regional clocks serve localized logic clusters. All clock inputs must meet specified slew rate and voltage thresholds per the device's DC and switching characteristics table.

Is XC6SLX45-N3FG484I compatible with Vivado Design Suite?

The XC6SLX45-N3FG484I is fully supported in Xilinx ISE Design Suite 14.7, the final and only officially supported toolchain. It is not supported in AMD Vivado, which targets 7-series and newer FPGAs. Users must continue using ISE 14.7 for synthesis, implementation, and bitstream generation. AMD provides legacy ISE download access and limited technical support for Spartan-6 devices through its archived documentation portal.