AMD XC6SLX45T-3CSG324C

Overview

XC6SLX45T-3CSG324C from AMD (formerly Xilinx) is a Spartan-6 FPGA with 43,661 logic cells, 2.1 Mb of block RAM, 186 DSP48A1 slices, and supports -3 speed grade operation at 1.2 V core supply. It is used in industrial control systems requiring deterministic I/O timing and partial reconfiguration capability.

For engineers reviewing the XC6SLX45T-3CSG324C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O bank voltage flexibility (1.2 V to 3.3 V), LVDS/BLVDS support, and integrated clock management with six DCMs and one PLL.

Technical Context

The XC6SLX45T-3CSG324C implements a configurable logic fabric based on 6-input LUTs and flip-flops, with dedicated carry logic for arithmetic. It integrates six Digital Clock Managers (DCMs) and one Phase-Locked Loop (PLL) for clock synthesis, multiplication, phase shifting, and duty-cycle correction.

I/O banks are organized into eight groups supporting independent voltage domains (1.2 V, 1.35 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V), with programmable drive strength (2 mA–24 mA), slew rate control, and on-chip termination (100 Ω differential, 50–200 Ω single-ended).

Key Specifications

Pinout & Package

Package: 324-pin CSGA (Chip Scale Grid Array), 15 × 15 mm, 0.8 mm pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX45-3CSG324C, the XC6SLX45T-3CSG324C adds extended temperature qualification without altering logic resources or I/O structure; versus XC7S50-2CSG324C, it trades newer architecture and PCIe for lower cost, mature tool support, and proven reliability in field-deployed systems.

Availability

XC6SLX45T-3CSG324C is available at Aetrix Electronics and suitable for industrial motor control, automated test equipment, and avionics data concentrators requiring stable component supply over extended product lifecycles.

Supply support for XC6SLX45T-3CSG324C 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, ACAPs, and related software tools.

The Spartan-6 family was originally designed by Xilinx for cost-sensitive, high-volume applications demanding low power, small footprint, and reliable I/O interfacing - especially in industrial automation and embedded vision.

FAQ

What is the maximum supported I/O standard for XC6SLX45T-3CSG324C?

The XC6SLX45T-3CSG324C supports LVDS, BLVDS, RSDS, LVPECL, SSTL, HSTL, and multiple LVCMOS/LVTTL standards across its eight I/O banks. Each bank operates independently at voltages from 1.2 V to 3.3 V, enabling direct interfacing with DDR2 memory, ADCs, DACs, and microcontrollers without external level shifters. The device's I/O electrical characteristics are fully specified in Xilinx DS162.

Does XC6SLX45T-3CSG324C support partial reconfiguration?

Yes, the XC6SLX45T-3CSG324C supports partial reconfiguration through Xilinx ISE Design Suite 14.7 and later. This allows dynamic replacement of logic modules while the rest of the design remains operational - essential for applications like protocol adaptation in communication gateways or runtime algorithm updates in medical imaging pipelines. Configuration is performed via JTAG or ICAP interface.

What configuration modes are available for XC6SLX45T-3CSG324C?

The XC6SLX45T-3CSG324C supports Master SPI, Slave Serial, Slave Parallel, and Boundary Scan (JTAG) configuration modes. Mode selection is controlled by M[2:0] pins at power-up. SPI flash is most common for standalone operation, while JTAG is used for debugging and programming during development. Configuration bitstreams can be encrypted using the on-chip AES engine.

Is XC6SLX45T-3CSG324C pin-compatible with other Spartan-6 devices in the CSG324 package?

No - XC6SLX45T-3CSG324C is not pin-compatible with other Spartan-6 devices in the CSG324 package, such as XC6SLX25T or XC6SLX75T. While all share the same 324-pin CSGA footprint, I/O bank assignments, configuration pin locations, and power pin allocations differ between densities. PCB layout must be validated per specific part number using Xilinx UG381.

What is the role of the DCM and PLL resources in XC6SLX45T-3CSG324C?

The XC6SLX45T-3CSG324C contains six Digital Clock Managers (DCMs) and one PLL to manage clock distribution, synthesis, and signal integrity. DCMs provide frequency synthesis, phase shifting, and duty-cycle correction for single-ended clocks; the PLL supports higher-frequency multiplication and jitter filtering for differential inputs. These resources enable precise clock domain crossing and synchronization across heterogeneous interfaces like DDR2, LVDS, and PCI.