AMD XC6SLX75T-3FG484I

Overview

XC6SLX75T-3FG484I from AMD (formerly Xilinx) is a Spartan-6 FPGA featuring 74,880 logic cells, 3.2 Gbps differential I/O support, and embedded 18×18 multipliers for DSP-intensive applications in industrial control and communications infrastructure.

For engineers reviewing the XC6SLX75T-3FG484I datasheet, pinout, applications, or equivalent options, key selection criteria include I/O voltage flexibility (1.2 V to 3.3 V), -3 speed grade timing performance, and temperature-rated operation at -40°C to +100°C.

Technical Context

The XC6SLX75T-3FG484I implements a configurable logic fabric with six-input LUTs, distributed RAM, and block RAM (up to 3,008 kbits), supporting synchronous design flows and partial reconfiguration. It integrates dual 10-bit ADCs and supports SelectIO™ technology for interfacing with DDR2/DDR3 SDRAM and PCI Express Gen1 endpoints.

This device uses a 484-pin Fine-Pitch Ball Grid Array (FBGA) package with 328 user I/Os, configured for high-density routing and thermal management in compact industrial PCB layouts. Its -3 speed grade guarantees maximum clock frequencies up to 595 MHz for internal logic paths.

Key Specifications

Pinout & Package

XC6SLX75T-3FG484I is housed in a 484-ball Fine-Pitch BGA (FG484) package with 328 user-configurable I/Os, power/ground ball optimization, and thermal pad for enhanced heat dissipation in high-utilization designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX75T-3FG484I, the XC6SLX9-TQG144C offers lower gate count and simplified packaging but sacrifices DSP resources and high-speed I/O; the XC7A75T-2CSG324I delivers superior transceiver performance and memory bandwidth at the cost of increased power and toolchain migration effort.

Availability

XC6SLX75T-3FG484I is available at Aetrix Electronics and suitable for industrial motor control, video surveillance encoding, wireless baseband processing, and test & measurement equipment requiring stable component supply across long production lifecycles.

Supply support for XC6SLX75T-3FG484I 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 continues development and support of the Spartan, Artix, Kintex, and Virtex FPGA families for adaptive computing applications.

The Spartan-6 family, including XC6SLX75T-3FG484I, was designed for cost-sensitive, high-volume applications requiring balanced logic density, I/O flexibility, and low-power operation in industrial and communications systems.

FAQ

What is the maximum operating frequency of the XC6SLX75T-3FG484I?

The XC6SLX75T-3FG484I has a -3 speed grade, guaranteeing internal logic paths operate reliably up to 595 MHz under worst-case voltage and temperature conditions. This rating applies to synchronous logic paths meeting timing constraints in Vivado or ISE design tools, not to I/O pins or transceivers, which have separate speed limits defined by I/O standard and termination.

Does the XC6SLX75T-3FG484I support DDR3 memory interfaces?

Yes, the XC6SLX75T-3FG484I supports DDR3 SDRAM interfaces through its SelectIO™ technology and dedicated memory controller primitives. It achieves data rates up to 800 Mbps per pin using SSTL15 I/O standard, with built-in calibration logic for DQS alignment and write-leveling, as verified in Xilinx UG388 v1.11.

Is the XC6SLX75T-3FG484I pin-compatible with other Spartan-6 devices?

No, the XC6SLX75T-3FG484I is not pin-compatible with other Spartan-6 devices due to its unique 484-ball FG484 package and specific I/O bank arrangement. Pin compatibility exists only within the same density and package variant group - for example, XC6SLX75T-2FG484I shares identical pinout but differs in speed grade and timing characteristics.

What configuration modes does the XC6SLX75T-3FG484I support?

The XC6SLX75T-3FG484I supports Master SPI, Slave Serial, Slave Parallel, and JTAG configuration modes. Configuration bitstream can be loaded from external SPI flash (e.g., Micron N25Q series) or through boundary-scan via JTAG, with fallback support enabled using the MODE pins and INIT_B signal as defined in Xilinx UG380.

Does the XC6SLX75T-3FG484I include hardware encryption features?

No, the XC6SLX75T-3FG484I does not include dedicated hardware AES or SHA engines. Security relies on bitstream encryption using external PROM with AES-128 keys, supported via BitGen tool with download cable authentication. Secure boot and tamper detection require external components or higher-tier FPGA families like Virtex-6 or UltraScale+.