AMD XC7A15T-1CSG324I

Overview

XC7A15T-1CSG324I from AMD (formerly Xilinx) is a Spartan-7 FPGA featuring 15,822 logic cells, 1.2 Mb of block RAM, and 120 DSP slices, housed in a 324-pin CSG324 flip-chip BGA package with 0.8 mm pitch. It operates at -40°C to +100°C junction temperature and supports I/O standards including LVCMOS, SSTL, and HSTL.

For engineers reviewing the XC7A15T-1CSG324I datasheet, pinout, applications, or equivalent options, key selection criteria include logic density, I/O count (210 user I/Os), thermal performance, single-event upset (SEU) mitigation capability, and support for PCIe Gen2 x2 endpoint operation.

Technical Context

The XC7A15T-1CSG324I implements a 28 nm HKMG process-based architecture with integrated configuration logic, SelectIO™ technology supporting up to 1.8 V I/O voltage, and built-in clock management using PLLs and MMCMs. It includes dedicated transceivers capable of 6.6 Gbps line rates and supports partial reconfiguration.

Configuration is performed via JTAG, SPIx4, or BPI modes, with bitstream encryption and HMAC authentication available. The device integrates hardened IP blocks including PCIe Gen2 Endpoint, Ethernet MAC, and AXI interconnect infrastructure.

Key Specifications

Pinout & Package

XC7A15T-1CSG324I is packaged in a 324-pin CSG324 flip-chip ball grid array (FCBGA) with 0.8 mm pitch, 19×19 array, and thermal pad. Package dimensions are 15 mm × 15 mm × 1.19 mm (height).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based embedded processing applications.

Compared with XC7A15T-1CSG324I, XC7A35T-1CSG324I offers headroom for future feature expansion but increases BOM cost and thermal load, while LFE5UM-25F-6BG256C reduces system-level complexity in non-PCIe, non-jitter-critical roles but requires more FPGA resources for equivalent functionality.

Availability

XC7A15T-1CSG324I is available at Aetrix Electronics and suitable for industrial motor control, automotive ADAS sensor hubs, and medical imaging front-end designs requiring stable component supply across long product lifecycles.

Supply support for XC7A15T-1CSG324I 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, acquired Xilinx in 2022 to expand its FPGA, ACAP, and adaptive SoC portfolio.

The Spartan-7 family targets cost-optimized, high-reliability applications in industrial automation, automotive sensing, and medical devices, emphasizing low power, extended temperature operation, and SEU resilience.

FAQ

What is the maximum supported I/O standard voltage for XC7A15T-1CSG324I?

XC7A15T-1CSG324I supports I/O voltages from 1.2 V to 3.3 V per bank, with dedicated VCCO supplies enabling mixed-voltage operation. Each I/O bank can be independently configured for LVCMOS, SSTL, or HSTL standards. This flexibility allows direct interfacing with legacy 3.3 V peripherals and modern 1.2 V processors without level-shifting components. The XC7A15T-1CSG324I datasheet specifies absolute maximum ratings and DC characteristics for each supported standard.

Does XC7A15T-1CSG324I include a hardened PCIe Gen2 endpoint?

Yes, XC7A15T-1CSG324I integrates a fully compliant PCIe Gen2 x2 endpoint block with AXI4 interface, eliminating need for external PHY or protocol translation logic. It supports link training, power management states (L0/L1/L2), and MSI/MSI-X interrupt delivery. The XC7A15T-1CSG324I implementation meets PCI-SIG compliance requirements for endpoint devices and is validated in Xilinx's Vivado IP integrator flow.

What configuration modes are supported by XC7A15T-1CSG324I?

XC7A15T-1CSG324I supports JTAG, master SPIx4, and BPI parallel configuration modes. Mode selection is controlled by M0–M2 pins at power-up. SPIx4 enables fast, secure bitstream loading from serial flash; BPI supports high-speed parallel PROMs; JTAG is used for debugging and programming during development. All modes are documented in the XC7A15T-1CSG324I Configuration User Guide (UG470).

Is XC7A15T-1CSG324I qualified for automotive applications?

XC7A15T-1CSG324I is rated for industrial temperature range (–40°C to +100°C) and features SEU mitigation, making it suitable for automotive ADAS sensor hubs and body control modules outside the engine compartment. While not AEC-Q100 qualified, its thermal and radiation tolerance aligns with many Tier-1 subsystem requirements. System-level qualification remains the responsibility of the end designer, and the XC7A15T-1CSG324I data sheet defines all applicable reliability test conditions.

How many block RAM primitives does XC7A15T-1CSG324I contain?

XC7A15T-1CSG324I contains 120 block RAM primitives, each configurable as 18 Kb (two 9 Kb blocks) or 36 Kb (single block), totaling 1.2 Mb of distributed on-chip memory. These are used for FIFOs, dual-port buffers, coefficient storage, and memory-mapped peripherals. Synthesis tools automatically allocate and optimize usage based on HDL code, and the XC7A15T-1CSG324I architecture supports true dual-port read/write with independent clocks per port.