AMD XC7A15T-2CSG324C

Overview

XC7A15T-2CSG324C from AMD (formerly Xilinx) is a Spartan-7 FPGA featuring 15,840 logic cells, 690 Kbits of block RAM, 120 DSP slices, and a -2 speed grade. It uses a 324-pin CSPBGA package with 210 user I/Os and operates at 1.0V core voltage. It is deployed in industrial motor control interfaces requiring deterministic timing and real-time I/O processing.

For engineers reviewing the XC7A15T-2CSG324C datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count, DSP resource availability, and thermal performance in compact PCB layouts.

Technical Context

The XC7A15T-2CSG324C implements a 28 nm HKMG process-based architecture with integrated configuration logic, SelectIO™ technology supporting LVCMOS, LVDS, and SSTL standards, and built-in clock management via two CMTs (Clock Management Tiles) each containing a PLL and MMCM. It supports JTAG and SPI configuration modes.

It includes dedicated PCIe® Gen2 x1 hard IP, 10/100/1000 Ethernet MAC support via soft IP, and partial reconfiguration capability. Configuration security features include AES-256 bitstream encryption and HMAC authentication.

Key Specifications

Pinout & Package

XC7A15T-2CSG324C is housed in a 324-ball fine-pitch CSPBGA package with 210 user-configurable I/Os distributed across 12 banks. Power and ground balls are arranged per Xilinx UG475 v1.14 guidelines to ensure stable core and I/O rail decoupling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC7A15T-2CSG324C, the XC7A35T-2CSG324C offers scalable logic headroom within identical mechanical and thermal constraints, while the LFE5U-25F-6BG256C trades raw performance for energy efficiency and simpler power sequencing-making them distinct alternatives rather than drop-in replacements.

Availability

XC7A15T-2CSG324C is available at Aetrix Electronics and suitable for industrial motor drives, automated test equipment, and medical imaging front-end systems requiring stable component supply and long-term manufacturability.

Supply support for XC7A15T-2CSG324C 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 delivers adaptive computing platforms including FPGAs, ACAPs, and software tools for hardware-accelerated workloads.

The Spartan-7 family, including XC7A15T-2CSG324C, was designed for cost-sensitive, high-reliability industrial and automotive applications demanding low power, small form factor, and extended temperature operation.

FAQ

What is the maximum supported DDR3 memory interface speed for XC7A15T-2CSG324C?

The XC7A15T-2CSG324C supports DDR3 interfaces up to 800 Mbps (400 MHz clock) in differential mode using its SelectIO™ banks. This is validated per Xilinx UG475 and confirmed in the -2 speed grade timing reports. The XC7A15T-2CSG324C achieves this with calibrated output delays and IDELAY/ODELAY primitives, requiring proper PCB impedance control and termination.

Does XC7A15T-2CSG324C include built-in transceivers for high-speed serial communication?

No, the XC7A15T-2CSG324C does not include multi-gigabit transceivers (MGTs). It relies on its SelectIO™ infrastructure for LVDS, RSDS, and BLVDS signaling up to 1.25 Gbps per lane. For PCIe Gen2 x1, it uses a dedicated hard IP block-not a serial transceiver-which handles encoding, framing, and link training internally without external PHY components.

Can XC7A15T-2CSG324C be configured via USB-JTAG without external hardware?

Yes, XC7A15T-2CSG324C supports JTAG configuration directly through a USB-JTAG cable such as the Digilent HS3 or Xilinx Platform Cable USB II. The XC7A15T-2CSG324C requires no additional level-shifting or voltage translation since its TCK/TMS/TDI/TDO pins operate at 3.3 V compatible levels and accept standard 3.3 V tolerant JTAG signals.

What thermal management guidance applies to XC7A15T-2CSG324C in sealed industrial enclosures?

For sealed enclosures operating at 85°C ambient, XC7A15T-2CSG324C requires a 4-layer PCB with internal copper planes, thermal vias under the package, and ≥20 cm² of exposed top-side copper connected to the thermal ball (GND or VCCINT). Xilinx UG475 specifies a θJA of 25.5°C/W for the CSG324 package, and junction temperature must remain ≤100°C under worst-case static/dynamic power conditions.

Is partial reconfiguration supported on XC7A15T-2CSG324C, and what toolchain is required?

Yes, partial reconfiguration is fully supported on XC7A15T-2CSG324C using Vivado Design Suite 2020.2 or later. The XC7A15T-2CSG324C requires hierarchical design partitioning, checkpoint-based implementation, and bitstream stitching. All reconfigurable modules must reside in the same super logic region (SLR), and no changes to static logic or I/O configuration are permitted during runtime swaps.