AMD XC6SLX75T-N3FGG484I

Overview

XC6SLX75T-N3FGG484I from AMD (formerly Xilinx) is a Spartan-6 FPGA featuring 74,880 logic cells, 180 DSP48A1 slices, 3.2 MB of total block RAM, and operates at -3 speed grade with industrial temperature range (-40°C to +100°C). It is used in industrial motor control systems requiring deterministic I/O timing and real-time logic processing.

For engineers reviewing the XC6SLX75T-N3FGG484I datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (348 user I/Os), LVDS support, configuration interface options (SPI/BPI), and thermal performance in convection-cooled enclosures.

Technical Context

The XC6SLX75T-N3FGG484I implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, shift registers, and dedicated carry logic. It supports SelectIO™ standards including LVCMOS, LVTTL, LVDS, and TMDS up to 1.0 Gbps per differential pair.

Configuration is performed via Master SPI, Slave SPI, or BPI parallel mode using on-chip startup circuitry and internal voltage regulation. The device includes integrated clock management with two DCMs (Digital Clock Managers) supporting phase shifting, frequency synthesis, and duty cycle correction.

Key Specifications

Pinout & Package

XC6SLX75T-N3FGG484I is housed in a 484-pin Fine-Pitch Ball Grid Array (FBGA) package with 23×23 mm body size, 1.0 mm ball pitch, and RoHS-compliant lead-free finish. The package supports standard reflow profiles and provides thermal pad compatibility for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX75-3FGG484C, the XC6SLX75T-N3FGG484I offers guaranteed operation at 100°C ambient, making it suitable for uncooled drive cabinets; versus XC6SLX100T-3FGG676I, it provides pin-compatible scalability only within the same FG484 package family - no direct upgrade path without layout change.

Availability

XC6SLX75T-N3FGG484I is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic relays, and machine vision preprocessing systems requiring stable component supply across extended product lifecycles.

Supply support for XC6SLX75T-N3FGG484I 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, MPSoCs, and ACAPs for data center, industrial, and automotive markets.

The Spartan-6 family was originally designed by Xilinx for cost-sensitive, high-volume industrial and embedded applications requiring low power, small form factor, and long-term availability - precisely the profile of XC6SLX75T-N3FGG484I.

FAQ

What is the maximum supported I/O standard voltage for XC6SLX75T-N3FGG484I?

The XC6SLX75T-N3FGG484I supports I/O standards from 1.2 V to 3.3 V across its 12 selectable I/O banks. Each bank is independently configurable for LVCMOS, LVTTL, or differential standards like LVDS, with VCCO per bank set externally. This allows direct interfacing with both modern 1.8 V sensors and legacy 3.3 V fieldbus transceivers without level-shifting components. The XC6SLX75T-N3FGG484I datasheet specifies absolute maximum VCCO as 3.465 V.

Does XC6SLX75T-N3FGG484I include built-in configuration memory?

No, the XC6SLX75T-N3FGG484I does not include non-volatile configuration memory. It loads its bitstream from external sources such as SPI flash (Master SPI mode), parallel NOR flash (BPI mode), or host processor (Slave Serial/SelectMAP). Configuration occurs on power-up or after assertion of PROGRAM_B. The XC6SLX75T-N3FGG484I relies on external storage, which enables field updates and multiple configuration images - a key requirement for industrial firmware flexibility.

Can XC6SLX75T-N3FGG484I operate with a single 1.2 V supply?

No, the XC6SLX75T-N3FGG484I requires three distinct supply rails: VCCINT (1.2 V core), VCCAUX (2.5 V auxiliary), and VCCO (1.2–3.3 V I/O). These must be independently regulated and sequenced during power-up per Xilinx UG381 guidelines. Failure to meet VCCAUX ramp rate or sequencing order may result in configuration failure. The XC6SLX75T-N3FGG484I specification defines strict tolerances: ±3% for VCCINT and ±5% for VCCAUX/VCCO.

What clocking resources are available in XC6SLX75T-N3FGG484I?

The XC6SLX75T-N3FGG484I integrates two Digital Clock Managers (DCMs) - DCM_CLKGEN and DCM_ADV - each supporting input frequency ranges from 1.2 MHz to 200 MHz. They provide phase shifting, frequency synthesis (up/down multiplication), duty cycle correction, and spread-spectrum clocking. There are no PLLs in Spartan-6; all clock generation relies on DCMs. The XC6SLX75T-N3FGG484I supports up to eight global clock networks driven from these DCM outputs or dedicated clock pins.

Is XC6SLX75T-N3FGG484I compatible with Vivado Design Suite?

No, the XC6SLX75T-N3FGG484I is supported exclusively by Xilinx ISE Design Suite 14.7 and earlier versions. Vivado does not support Spartan-6 devices. Migration to newer toolchains requires FPGA replacement (e.g., Artix-7). For ongoing maintenance of legacy industrial systems, continued use of ISE 14.7 - with its verified timing models and device-specific constraints - remains essential. The XC6SLX75T-N3FGG484I bitstream format is incompatible with Vivado-generated configurations.