AMD XC6SLX45T-N3CSG324I

Overview

XC6SLX45T-N3CSG324I from AMD (formerly Xilinx) is a Spartan-6 FPGA featuring 43,661 logic cells, 2.7 Mb of block RAM, 180 DSP48A1 slices, and operation at -3 speed grade with industrial temperature range (-40°C to +100°C). It is used in industrial control systems requiring deterministic I/O timing and partial reconfiguration support.

For engineers reviewing the XC6SLX45T-N3CSG324I datasheet, pinout, applications, or equivalent options, key selection factors include I/O bank voltage flexibility (1.2 V to 3.3 V), LVDS/BLVDS/SSTL compatibility, and integrated clock management with DCM and PLL.

Technical Context

The XC6SLX45T-N3CSG324I implements a configurable logic fabric based on 6-input LUTs and flip-flops, with dedicated carry logic for arithmetic. It integrates dual-clock managers (DCM) and one PLL for clock synthesis, phase shifting, and jitter reduction across multiple output frequencies.

I/O banks are organized into eight groups supporting independent voltage domains and interface standards including LVCMOS, LVTTL, SSTL-2/3, HSTL, and differential signaling such as LVDS and BLVDS. Configuration occurs via Master SPI, Slave Serial, or JTAG modes using external PROM or processor-controlled loading.

Key Specifications

Pinout & Package

XC6SLX45T-N3CSG324I is housed in a 324-pin CSG (Chip Scale Grid Array) package with 232 user I/O pins distributed across eight I/O banks. The package has 1.0 mm ball pitch and is RoHS-compliant.

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 XC6SLX45-3CSG324C and XC7S50-2CSGA324C, the XC6SLX45T-N3CSG324I uniquely balances industrial temperature resilience, mature ISE toolchain support, and proven field reliability in long-lifecycle embedded systems where requalification risk must be minimized.

Availability

XC6SLX45T-N3CSG324I is available at Aetrix Electronics and suitable for industrial motion control, automated test equipment, and avionics data concentrators requiring stable component supply over multi-year production cycles.

Supply support for XC6SLX45T-N3CSG324I 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 markets adaptive computing platforms including FPGAs, adaptive SoCs, and AI accelerators.

The Spartan-6 family, including XC6SLX45T-N3CSG324I, was designed for cost-sensitive, high-volume applications demanding reliable I/O interfacing, moderate logic capacity, and industrial-grade environmental tolerance.

FAQ

What is the maximum supported I/O standard voltage for XC6SLX45T-N3CSG324I?

The XC6SLX45T-N3CSG324I supports I/O bank voltages from 1.2 V to 3.3 V. Each of its eight I/O banks can be independently configured to match the voltage level of connected peripherals, enabling direct interfacing with mixed-voltage systems without external level shifters. This capability is verified in Xilinx DS162 and UG381 documentation.

Does XC6SLX45T-N3CSG324I support partial reconfiguration?

Yes, the XC6SLX45T-N3CSG324I supports partial reconfiguration through the use of modular design flows in Xilinx ISE Design Suite. This allows specific logic regions to be updated dynamically while the rest of the design remains active, enabling features like runtime protocol switching or adaptive filter coefficient updates without system reset.

What configuration modes are available for XC6SLX45T-N3CSG324I?

The XC6SLX45T-N3CSG324I supports Master SPI, Slave Serial, and JTAG configuration modes. Master SPI uses an internal oscillator to read bitstream from external SPI flash; Slave Serial allows host processor control; JTAG enables boundary-scan testing and debug programming. All modes are detailed in Xilinx UG380.

Is XC6SLX45T-N3CSG324I pin-compatible with other Spartan-6 devices in the same package?

No, XC6SLX45T-N3CSG324I is not fully pin-compatible with other Spartan-6 devices in the CSG324 package. While pin count and physical footprint match, I/O bank assignments, VCCO/VREF allocations, and dedicated function pin mappings differ across density variants, requiring board-level verification per device datasheet.

What clocking resources does XC6SLX45T-N3CSG324I provide?

The XC6SLX45T-N3CSG324I integrates two Digital Clock Managers (DCMs) and one Phase-Locked Loop (PLL). These support frequency synthesis, duty-cycle correction, phase shifting, and jitter reduction. Up to six independent clock outputs can be generated per DCM, and the PLL supports wider multiplication ranges and lower jitter than DCMs alone.