AMD XC6SLX45-N3CSG484C

Overview

XC6SLX45-N3CSG484C from AMD (formerly Xilinx) is a Spartan-6 FPGA featuring 43,661 logic cells, 2.1 Mb of block RAM, 216 DSP48A1 slices, and operates at -3 speed grade with industrial temperature range (–40°C to +85°C). It is used in embedded vision preprocessing, industrial Ethernet gateway logic, and reconfigurable I/O bridging.

For engineers reviewing the XC6SLX45-N3CSG484C datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (348 user I/Os), LVDS-capable banks, SelectIO™ support for multiple standards, and compatibility with Xilinx ISE Design Suite v14.7.

Technical Context

The XC6SLX45-N3CSG484C implements a configurable logic fabric based on 6-input LUTs and flip-flops, with dedicated carry logic and shift registers. It integrates six CMT clock management tiles-each containing two DCMs and one PLL-for low-jitter clock synthesis and phase alignment across multiple domains.

It supports dual-register I/O with source-synchronous timing, includes 24 transceiver-ready I/Os compatible with DDR2/DDR3 SDRAM interfaces, and features integrated PCI Express® Endpoint Block (v1.1) for host communication acceleration.

Key Specifications

Pinout & Package

XC6SLX45-N3CSG484C is housed in a 484-pin CSG (Chip-Scale Grid Array) package with 348 user-configurable I/Os distributed across 12 I/O banks. The package has 1.0 mm ball pitch, 23×23 array, and exposes VCCO, VCCAUX, VCCINT, GND, and configuration pins (INIT_B, PROGRAM_B, DONE).

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX45-N3CSG484C, the XC6SLX45-3FGG484C offers identical functionality in a less compact package, while the XC7S50-2CSG324C delivers enhanced serial connectivity and newer tool support at the cost of migration effort and higher power consumption.

Availability

XC6SLX45-N3CSG484C is available at Aetrix Electronics and suitable for industrial motion control, embedded vision preprocessing, and reconfigurable I/O bridging requiring stable component supply over extended product lifecycles.

Supply support for XC6SLX45-N3CSG484C 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 software tools for heterogeneous compute acceleration.

The Spartan-6 family-including XC6SLX45-N3CSG484C-was designed for cost-sensitive, high-volume applications demanding low-power logic implementation, embedded processing, and flexible I/O interfacing in industrial and automotive environments.

FAQ

What is the maximum operating frequency of the XC6SLX45-N3CSG484C?

The XC6SLX45-N3CSG484C is rated at speed grade -3, guaranteeing internal logic operation up to 500 MHz under worst-case industrial temperature conditions (–40°C to +85°C) with appropriate timing constraints and placement. Actual achievable frequency depends on design complexity, routing, and I/O interface requirements. The XC6SLX45-N3CSG484C supports clock inputs up to 500 MHz via dedicated clock pins and CMT resources.

Does the XC6SLX45-N3CSG484C support DDR3 memory interfaces?

Yes, the XC6SLX45-N3CSG484C supports DDR3 SDRAM interfaces through its SelectIO™ technology and dual-register I/O capability. It provides source-synchronous timing control, programmable input delays, and output phase alignment necessary for reliable DDR3 operation at data rates up to 800 Mbps. The XC6SLX45-N3CSG484C requires external memory controller IP or custom RTL implementation, as it does not include a hard DDR3 controller.

Is the XC6SLX45-N3CSG484C pin-compatible with other Spartan-6 devices?

No, the XC6SLX45-N3CSG484C is not universally pin-compatible across the Spartan-6 family. While devices sharing the CSG484 package (e.g., XC6SLX25, XC6SLX75) have overlapping pinouts for common functions, I/O bank assignments, voltage configurations, and dedicated resource placement differ. The XC6SLX45-N3CSG484C requires its specific pin mapping and cannot be substituted without verifying signal routing, bank compatibility, and configuration pin placement.

What configuration modes does the XC6SLX45-N3CSG484C support?

The XC6SLX45-N3CSG484C supports six configuration modes selected by M0–M2 pins: Master SPI, Slave SPI, Master SelectMAP, Slave SelectMAP, JTAG, and Boundary Scan. Configuration can be initiated via external processor, flash memory, or JTAG debugger. The XC6SLX45-N3CSG484C uses a 4-byte header and CRC checking for bitstream integrity validation during load.

Does the XC6SLX45-N3CSG484C include built-in transceivers for high-speed serial communication?

No, the XC6SLX45-N3CSG484C does not include built-in high-speed serial transceivers. It relies on external PHY devices for Gigabit Ethernet, USB, or PCI Express links. The XC6SLX45-N3CSG484C does integrate a hard PCI Express Endpoint Block (v1.1) for x1 lane Gen1 operation, but this block interfaces with an external PHY-not a native transceiver-and requires separate clocking and signal integrity management.