AMD XC6SLX9-3TQG144C

Overview

XC6SLX9-3TQG144C from AMD (formerly Xilinx) is a Spartan-6 FPGA with 9,152 logic cells, 576 Kbits of block RAM, and 18 I/O banks supporting LVCMOS/LVTTL/SSTL standards. It operates at -3 speed grade (1.2 V core, 100 MHz system clock) in a 144-pin TQFP package and is used in industrial control logic and low-power embedded interface bridging.

For engineers reviewing the XC6SLX9-3TQG144C datasheet, pinout, applications, or equivalent options, key selection factors include I/O voltage flexibility, embedded DSP48A1 slices for arithmetic acceleration, and support for SPI/BPI configuration modes in space-constrained PCBs.

Technical Context

The XC6SLX9-3TQG144C implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), distributed RAM, and dedicated carry logic. It integrates six Digital Clock Managers (DCMs) for clock synthesis, phase shifting, and frequency multiplication up to 333 MHz.

It supports SelectIO™ technology with programmable drive strength (2–24 mA), slew rate control, and on-chip termination (up to 150 Ω). Configuration is performed via Master Serial (SPI flash) or JTAG, with dual-boot capability enabled through external M[2:0] pins.

Key Specifications

Pinout & Package

Package: 144-pin Thin Quad Flat Package (TQFP), 20 × 20 mm, 0.5 mm pitch, RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC6SLX9-3TQG144C, the XC6SLX16-2CSG324C offers greater logic density but requires PCB redesign due to different package and pinout, while the LFE5U-12F-6BG256C reduces power consumption and simplifies power delivery but lacks DCM-based clock management for precision timing applications.

Availability

XC6SLX9-3TQG144C is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and automotive test equipment requiring stable component supply over extended production lifecycles.

Supply support for XC6SLX9-3TQG144C 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 targets cost-sensitive, high-volume applications requiring balanced logic density, low power, and flexible I/O - especially in industrial control, video processing, and communications infrastructure.

FAQ

What is the maximum operating frequency of the XC6SLX9-3TQG144C?

The XC6SLX9-3TQG144C is rated for a system clock frequency of 100 MHz at the -3 speed grade under commercial temperature conditions (0°C to 85°C) and 1.2 V core supply. Internal DCM outputs can reach 333 MHz, but actual achievable frequency depends on design routing, resource utilization, and I/O constraints. The XC6SLX9-3TQG144C datasheet specifies timing parameters for all CLB paths, block RAM access, and I/O setup/hold relative to this grade.

Does the XC6SLX9-3TQG144C support JTAG boundary-scan testing?

Yes, the XC6SLX9-3TQG144C fully supports IEEE 1149.1 JTAG boundary-scan for device programming, debugging, and interconnect testing. Pins TCK, TMS, TDI, and TDO are dedicated to JTAG functionality and remain accessible even after configuration. The XC6SLX9-3TQG144C allows concurrent JTAG access to multiple devices in a chain and supports readback of configuration status registers during runtime.

Can the XC6SLX9-3TQG144C be configured from SPI flash memory?

Yes, the XC6SLX9-3TQG144C supports Master Serial mode, where it actively clocks an external SPI flash device (e.g., Micron N25Q, Winbond W25Q) and loads its configuration bitstream at power-up. The CCLK pin outputs the clock signal, and the DIN pin receives data. This method is widely used for field-upgradable systems, and the XC6SLX9-3TQG144C includes hardware-level CRC checking and fallback address support.

What I/O standards are supported by the XC6SLX9-3TQG144C?

The XC6SLX9-3TQG144C supports LVCMOS (1.2 V to 3.3 V), LVTTL, SSTL18, SSTL2, HSTL, and differential standards including LVDS, RSDS, and BLVDS - with per-bank voltage selection. Each of its 18 I/O banks has independent VCCO, allowing mixed-voltage operation. The XC6SLX9-3TQG144C does not support PCI-X or HyperTransport signaling.

Is there a replacement for the XC6SLX9-3TQG144C in active production?

The XC6SLX9-3TQG144C remains in active production and is supported by AMD with published PCN notifications and long-term availability commitments. While newer families like Artix-7 offer higher performance, the XC6SLX9-3TQG144C continues to ship with full documentation, ISE 14.7 toolchain support, and validated reference designs. No obsolescence notice has been issued for the XC6SLX9-3TQG144C.