AMD XC6SLX75-L1CSG484I

Overview

XC6SLX75-L1CSG484I from AMD (formerly Xilinx) is a Spartan-6 FPGA featuring 74,880 logic cells, 180 DSP48A1 slices, and 3.2 MB of total block RAM. It operates at -1 speed grade (1.2 V core, industrial temperature range -40°C to +100°C) in a 484-pin CSGA package and is used in industrial motor control and embedded vision preprocessing.

For engineers reviewing the XC6SLX75-L1CSG484I datasheet, pinout, applications, or equivalent options, key selection factors include I/O count (348 user I/Os), LVDS support, multi-voltage bank operation (1.2 V/1.8 V/2.5 V/3.3 V), and integrated clock management (DCM and PLL).

Technical Context

The XC6SLX75-L1CSG484I implements a configurable logic fabric based on 6-input LUTs and flip-flops, with dedicated routing for high-speed I/O and internal signal integrity. It integrates dual DCMs and one PLL per device for clock synthesis, phase shifting, and frequency multiplication up to 500 MHz.

I/O banks support independent voltage assignment across 12 banks, enabling mixed-signal interface coexistence (e.g., 3.3 V GPIO with 1.8 V DDR2). Configuration occurs via Master SPI, Slave SelectMAP, or JTAG, with bitstream encryption available using AES-256.

Key Specifications

Pinout & Package

XC6SLX75-L1CSG484I is housed in a 484-ball CSGA (Chip Scale Grid Array) package with 0.8 mm pitch, 23 × 23 mm body size, and exposed thermal pad for enhanced thermal dissipation in industrial environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX75-L1CSG484I, the -2C variant trades industrial reliability for higher timing margin, while the LX100T-L1 offers headroom for feature expansion at the cost of board space and thermal management complexity.

Availability

XC6SLX75-L1CSG484I is available at Aetrix Electronics and suitable for industrial motor control, embedded vision preprocessing, and programmable logic controller (PLC) applications requiring stable component supply and long-term lifecycle assurance.

Supply support for XC6SLX75-L1CSG484I 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-6 FPGA family under the AMD Adaptive SoC portfolio.

The Spartan-6 family was designed for cost-sensitive, high-volume applications demanding low-power programmable logic with robust I/O flexibility and industrial-grade reliability.

FAQ

What is the maximum operating frequency of the XC6SLX75-L1CSG484I?

The XC6SLX75-L1CSG484I supports internal logic operation up to 500 MHz when using its integrated PLL for clock multiplication. Its -1 speed grade guarantees timing closure for designs meeting specified setup/hold constraints at 1.2 V core voltage and industrial temperature range. Actual achievable frequency depends on design complexity, routing, and I/O standards used.

Does the XC6SLX75-L1CSG484I support JTAG boundary-scan testing?

Yes, the XC6SLX75-L1CSG484I fully supports IEEE 1149.1 JTAG boundary-scan for PCB-level interconnect testing and in-system programming. The TDI, TDO, TCK, TMS, and TRST pins are dedicated and mapped to specific balls in the CSGA package, enabling standard test access without requiring additional configuration pins.

Can the XC6SLX75-L1CSG484I interface directly with DDR2 SDRAM?

Yes, the XC6SLX75-L1CSG484I supports DDR2 SDRAM interfaces through its I/O banks configured for SSTL18 I/O standard and calibrated delay elements. It provides dedicated read/write leveling and DQS capture logic, enabling reliable 400 Mbps data rates when used with appropriate PCB layout and termination.

Is bitstream encryption enabled by default on the XC6SLX75-L1CSG484I?

No, AES-256 bitstream encryption must be explicitly enabled during bitstream generation using Xilinx ISE Design Suite v14.7 or later. The XC6SLX75-L1CSG484I contains dedicated hardware for decryption, but the encryption key must be fused into the device's eFUSE array prior to first configuration, and the bitstream must be generated with encryption enabled.

What configuration modes does the XC6SLX75-L1CSG484I support?

The XC6SLX75-L1CSG484I supports three primary configuration modes: Master SPI (internal oscillator drives serial flash), Slave SelectMAP (external controller writes parallel data), and JTAG (debug and programming via standard test access port). Mode selection is controlled by MODE pins (M0–M2) at power-up.