AMD XC6VSX315T-1FFG1156I

Overview

XC6VSX315T-1FFG1156I from AMD is a high-performance Virtex-6 FPGA featuring 315,900 logic cells, 14,336 Kbits of block RAM, and 640 DSP48E1 slices. It supports 1.25 Gbps LVDS I/O, operates at -1 speed grade, and is housed in a 1156-pin Flip-Chip Fine-Pitch Ball Grid Array (FFG) package for high-density routing in telecom line cards.

For engineers reviewing the XC6VSX315T-1FFG1156I datasheet, pinout, applications, or equivalent options, key selection criteria include transceiver count (32 GTX), I/O voltage support (1.2 V to 3.3 V), thermal design power (27.5 W typical), and configuration interface compatibility (SPIx4, SelectMAP).

Technical Context

The XC6VSX315T-1FFG1156I implements a hierarchical FPGA architecture with configurable logic blocks (CLBs), dedicated DSP slices, and integrated 3.125 Gbps GTX transceivers. It supports multi-gigabit serial protocols including PCIe Gen1/Gen2, SATA, and SRIO.

Configuration is performed via Master SPI or SelectMAP mode using external flash or processor control. The device includes built-in clock management tiles (CMTs) with PLLs and MMCMs supporting jitter reduction and frequency synthesis across multiple domains.

Key Specifications

Pinout & Package

XC6VSX315T-1FFG1156I is packaged in a 1156-pin Flip-Chip Fine-Pitch Ball Grid Array (FFG) with 35 × 35 array, 1.0 mm ball pitch, and thermal lid for enhanced heat dissipation in high-power applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-end FPGA applications.

Compared with XC6VSX315T-1FFG1156I, the XCVU9P delivers 8× more logic and 2× transceiver bandwidth but requires new PCB design and toolchain migration, while the XC7VX690T offers higher logic density and better power efficiency at the cost of increased package size and thermal envelope.

Availability

XC6VSX315T-1FFG1156I is available at Aetrix Electronics and suitable for wireless infrastructure, avionics data concentrators, and high-speed test equipment requiring stable component supply across extended product lifecycles.

Supply support for XC6VSX315T-1FFG1156I 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 is a global semiconductor leader delivering adaptive computing solutions for data centers, AI, embedded systems, and high-performance computing.

The Virtex-6 family was engineered for high-bandwidth, low-latency programmable logic in mission-critical infrastructure where deterministic timing and long-term availability are essential.

FAQ

What is the maximum supported I/O standard voltage for XC6VSX315T-1FFG1156I?

The XC6VSX315T-1FFG1156I supports I/O voltages from 1.2 V to 3.3 V per bank, with each of its 36 I/O banks independently configurable. This allows mixed-voltage interfacing-for example, connecting 1.8 V memory controllers and 3.3 V legacy peripherals simultaneously-without level-shifting components. VCCO must match the selected standard's nominal voltage, and all pins in a bank must share the same VCCO.

Does XC6VSX315T-1FFG1156I support partial reconfiguration in the field?

Yes, the XC6VSX315T-1FFG1156I supports hardware-accelerated partial reconfiguration through Xilinx ISE Design Suite tools. This enables dynamic logic module swapping-such as updating a filter coefficient engine or protocol parser-without resetting the entire FPGA fabric. The feature relies on dedicated configuration logic and frame-based bitstream addressing, verified in production deployments for satellite telemetry handlers and adaptive radar waveforms.

What is the thermal design power (TDP) of XC6VSX315T-1FFG1156I under typical operating conditions?

The XC6VSX315T-1FFG1156I has a typical thermal design power of 27.5 W at 85°C junction temperature, based on worst-case vectorless switching activity. Actual power varies with design utilization, clock frequency, and I/O activity. Thermal management must account for the 1156-pin FFG package's thermal resistance (θJA ≈ 6.2°C/W), requiring a heatsink with ≥ 2.5 CFM airflow or vapor chamber solution for sustained operation above 70% logic utilization.

Can XC6VSX315T-1FFG1156I be configured via JTAG alone?

No, the XC6VSX315T-1FFG1156I does not support standalone JTAG configuration. JTAG is used only for boundary-scan testing and debug access. Configuration requires either Master SPI (using external serial flash) or SelectMAP (parallel bus driven by microcontroller or processor). A valid configuration mode pin setting (M[2:0]) and correct INIT_B/PROGRAM_B sequencing are mandatory before configuration begins.

What PCIe generations does XC6VSX315T-1FFG1156I natively support?

The XC6VSX315T-1FFG1156I natively supports PCI Express Gen1 (2.5 Gbps) and Gen2 (5.0 Gbps) as an endpoint device using its GTX transceivers. It implements the PCIe v2.0 specification with hard IP for transaction layer, data link layer, and physical layer functions. No external PHY or bridge IC is required, and it passes PCIe compliance testing up to Gen2 x8 link width in certified reference designs.