AMD XC7K70T-3FBG484E

Overview

XC7K70T-3FBG484E from AMD is a Kintex-7 FPGA with 70,350 logic cells, 3.3 V I/O voltage, -3 speed grade, and 484-pin FCBGA package. It integrates 360 DSP slices, 4.2 MB of block RAM, and supports PCIe Gen2 x8, DDR3-1866 memory interface, and high-speed transceivers up to 6.6 Gb/s - deployed in industrial vision processing and reconfigurable data-acquisition systems.

For engineers reviewing the XC7K70T-3FBG484E datasheet, pinout, applications, or equivalent options, key selection criteria include I/O bank configuration, transceiver lane count, thermal performance in sealed enclosures, and compatibility with Vivado 2023.2 toolchain for partial reconfiguration support.

Technical Context

The XC7K70T-3FBG484E implements a 28 nm HKMG process architecture with configurable logic blocks (CLBs), dedicated DSP48E1 slices, and integrated clock management tiles (CMTs) containing MMCM and PLL blocks. It supports SelectIO standards including LVDS, SSTL, HSTL, and MIPI D-PHY at up to 1.25 Gb/s per pin.

Its transceiver subsystem comprises 8 GTP transceivers (6.6 Gb/s max line rate) with built-in 8B/10B encoding, PRBS generation/checking, and dynamic reconfiguration capability. Memory controller supports dual-rank DDR3-1866 with 64-bit data bus width and hardware calibration.

Key Specifications

Pinout & Package

XC7K70T-3FBG484E uses a 484-pin Fine-Pitch Flip-Chip Ball Grid Array (FCBGA) with 23×23 mm body size, 1.0 mm ball pitch, and standard JEDEC MO-271AC mechanical outline. Thermal pad is exposed on underside for heatsink attachment.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based reconfigurable computing applications.

Compared with XC7K70T-3FBG484E, XCKU035-2FFVA676E offers greater transceiver bandwidth and logic density but increases BOM cost and power delivery complexity; XC7K160T-2FBG676I retains Kintex-7 toolchain compatibility while expanding I/O and memory interface scalability at the expense of footprint and thermal design margin.

Availability

XC7K70T-3FBG484E is available at Aetrix Electronics and suitable for industrial machine vision, high-speed data acquisition, and programmable test instrumentation requiring stable component supply across extended product lifecycles.

Supply support for XC7K70T-3FBG484E 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 center, AI, embedded, and client markets with focus on performance-per-watt efficiency and open software ecosystems.

The Kintex-7 family targets cost-optimized high-performance applications including wired communications, video processing, and test & measurement - balancing logic density, transceiver count, and power efficiency for mid-range reconfigurable systems.

FAQ

What is the maximum supported DDR3 data rate for XC7K70T-3FBG484E?

The XC7K70T-3FBG484E supports DDR3-1866 (933 MHz clock, 1866 Mb/s data rate) using its integrated memory controller. This is validated across all I/O banks configured for SSTL15 standards and requires board-level impedance control within ±10% tolerance. The XC7K70T-3FBG484E memory interface includes hardware-calibrated write leveling and read deskew to maintain timing margins at full speed.

Does XC7K70T-3FBG484E support partial reconfiguration in production systems?

Yes, the XC7K70T-3FBG484E supports verified partial reconfiguration through Vivado Design Suite 2022.2 and later. This capability enables dynamic module swapping without resetting the entire device - used in field-deployed test equipment where protocol stacks (e.g., USB3.0 vs PCIe Gen2) must be loaded on demand. The XC7K70T-3FBG484E configuration logic maintains state integrity during reconfiguration cycles.

What thermal management is required for XC7K70T-3FBG484E in continuous operation?

XC7K70T-3FBG484E requires a minimum 25 mm² copper thermal pad connected to internal ground planes and external heatsink via thermal vias (≥12× 0.3 mm diameter). Under worst-case 2.5 W typical power dissipation at 100°C ambient, junction temperature remains within spec when using 3.5 W/m-K thermal interface material and 15 cm² aluminum heatsink. The XC7K70T-3FBG484E thermal pad is soldered directly to PCB for optimal conduction.

Can XC7K70T-3FBG484E operate as a PCIe Gen2 root complex?

No, the XC7K70T-3FBG484E implements only PCIe Gen2 endpoint functionality with hard IP - it cannot act as a root complex or switch. Its PCIe block supports up to x8 lane width, completion timeout handling, and MSI/MSI-X interrupt generation, but lacks root port arbitration logic and configuration space enumeration required for root complex operation. The XC7K70T-3FBG484E must be connected downstream of a host CPU or PCIe switch.

What configuration modes does XC7K70T-3FBG484E support?

The XC7K70T-3FBG484E supports Master SPI, Slave SelectMAP, JTAG, and BPI configuration modes. Quad-SPI mode delivers 40 MB/s effective bitstream load rate, while SelectMAP with 32-bit bus achieves 80 MB/s peak throughput. Configuration security features include AES-256 bitstream encryption and HMAC authentication - enabled via eFUSE programming prior to deployment. The XC7K70T-3FBG484E configuration engine validates checksum before releasing DONE signal.