AMD XC7A15T-2FGG484C

Overview

XC7A15T-2FGG484C from AMD (Xilinx) is a Spartan-7 FPGA with 15,824 logic cells, 1.2 Mb of block RAM, and 120 DSP slices, configured in a 484-pin Fine-Pitch Ball Grid Array (FBGA) package with 0.8 mm pitch. It targets cost-sensitive industrial control, motor drive feedback processing, and embedded vision preprocessing.

For engineers reviewing the XC7A15T-2FGG484C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (200 user I/Os), speed grade (-2), thermal performance (commercial temperature range 0°C to 85°C), and supported configuration interfaces (SPIx4, JTAG, SelectMAP).

Technical Context

The XC7A15T-2FGG484C implements a 28 nm HKMG process-based architecture with integrated clock management (two MMCMs and one PLL), configurable I/O banks supporting LVCMOS, LVDS, and SSTL standards, and dedicated PCIe Gen2 x1 endpoint capability. It supports partial reconfiguration and AXI4-compliant interconnects for system-on-module integration.

Configuration is performed via master SPI or JTAG, with bitstream encryption and HMAC authentication available. The device includes internal startup sequence control, power-on reset circuitry, and brown-out detection aligned to Xilinx UG470 and UG953 specifications.

Key Specifications

Pinout & Package

XC7A15T-2FGG484C is housed in a 484-ball Fine-Pitch BGA (FGG) package with 0.8 mm ball pitch, 22×22 array, and 3.26 mm × 3.26 mm body size. Thermal pad is exposed on underside for PCB-level heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with XC7A35T-2FGG484C and XC7A15T-1CPG236C, the XC7A15T-2FGG484C offers optimal balance of I/O count, thermal headroom, and speed grade for industrial control modules requiring 200+ pins and commercial-temperature operation - without over-provisioning logic or sacrificing board-level thermal design margin.

Availability

XC7A15T-2FGG484C is available at Aetrix Electronics and suitable for industrial motor control, embedded vision preprocessing, and programmable logic controller (PLC) applications requiring stable component supply across multi-year production cycles.

Supply support for XC7A15T-2FGG484C 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) is a global semiconductor leader delivering adaptive computing platforms for data center, AI, and embedded applications.

The Spartan-7 family, including XC7A15T-2FGG484C, was designed for cost-optimized, high-reliability industrial and automotive applications requiring low static power, extended temperature support, and long-term availability.

FAQ

What is the maximum operating frequency of the XC7A15T-2FGG484C?

The XC7A15T-2FGG484C has a -2 speed grade, guaranteeing timing closure up to 667 MHz on critical paths per Xilinx UG470. Actual achievable clock frequencies depend on design complexity, routing congestion, and I/O standard selection - for example, DDR3 interfaces typically run at 400 MHz (800 Mbps), while internal logic may reach 500 MHz in optimized implementations. The XC7A15T-2FGG484C includes two MMCMs and one PLL to generate and manage these clocks.

Does the XC7A15T-2FGG484C support PCIe Gen2?

Yes, the XC7A15T-2FGG484C integrates a hard PCIe Gen2 x1 endpoint block compliant with PCI Express Base Specification v2.1. It supports link training, power management states (L0/L1/L2), and transaction layer packet handling without soft-core implementation. This capability is confirmed in Xilinx UG476 and verified in Vivado 2023.2 IP integrator flow for the XC7A15T-2FGG484C.

What configuration modes does the XC7A15T-2FGG484C support?

The XC7A15T-2FGG484C supports master SPI, slave SPI, JTAG, and SelectMAP configuration modes. Mode selection is controlled by M0–M2 pins at power-up. Master SPI is most common for standalone boot; JTAG is used for programming and debugging. All modes are documented in Xilinx UG470 and validated for the XC7A15T-2FGG484C in production hardware.

Is bitstream encryption available on the XC7A15T-2FGG484C?

Yes, the XC7A15T-2FGG484C supports AES-256 bitstream encryption and HMAC-SHA256 authentication as defined in Xilinx UG470. These features require a battery-backed or non-volatile key storage solution and are enabled during bitstream generation in Vivado. Encryption applies to all configuration sources including SPI flash and JTAG, protecting the XC7A15T-2FGG484C design IP in field-deployed units.

What is the I/O voltage range supported by the XC7A15T-2FGG484C?

The XC7A15T-2FGG484C supports I/O voltages from 1.2 V to 3.3 V across its 10 configurable I/O banks. Each bank is independently powered (VCCO), allowing mixed-voltage interfaces - for example, bank 0 at 1.8 V for MIPI D-PHY and bank 1 at 3.3 V for legacy GPIO. This flexibility is specified in Xilinx DS182 and confirmed for the XC7A15T-2FGG484C in production silicon characterization reports.