XC7K70T-1FBG676C Kintex-7 FPGA: Specs, Design Guide, and Alternatives

Admin · Aug 23, 2026 · 3 min read AI-Assisted · 1 views · Updated: Aug 23, 2026 · Fact-Checked
XC7K70T-1FBG676C Kintex-7 FPGA: Specs, Design Guide, and Alternatives
The AMD XC7K70T-1FBG676C is a Kintex-7 FPGA with 65,600 logic cells, 300 user I/Os, and 4,976,640 bits of block RAM. Available now at $36.5909 (as of 2026-08-23).
XC7K70T-1FBG676C

Quick Answers: What is the XC7K70T-1FBG676C?

The AMD XC7K70T-1FBG676C is a Kintex-7 FPGA built on 28nm technology, featuring 65,600 logic cells, 300 user I/Os, and 4,976,640 bits of block RAM. It operates at a 1V core voltage and comes in a 676-ball lidless FCBGA package. As of 2026-08-23, it is in stock with 99,999 units available at a base price of $36.5909 per unit (MOQ 1). This device is ideal for software-defined radio, medical imaging, industrial automation, and aerospace/defense applications.

Technical Guide: How to Select, Design In, and Use the XC7K70T-1FBG676C

When selecting the XC7K70T-1FBG676C for your design, verify that your logic requirements fit within 65,600 logic cells and that your I/O count does not exceed 300. The device provides 4,976,640 bits of block RAM for data buffering. For clock management, the FPGA includes MMCM and PLL blocks, supporting flexible clock generation. Configuration can be performed via JTAG, SPI, or BPI interfaces.

Design-in considerations: Ensure adequate decoupling capacitors on all power pins (VCCINT at 1V, VCCAUX at 1.8V) and follow AMD's power-on sequencing guidelines. The lidless FCBGA package requires careful thermal management; use a heatsink or forced airflow for high-utilization designs. The operating temperature range is [DATA_NEEDED: operating temperature range]. Supported I/O standards are [DATA_NEEDED: supported I/O standards].

For layout, reference the pinout for critical pins: VCCINT (B1, F1), GND (B2, D2, F2), VCCAUX (D1), and user I/O pins such as A1, A2, C1, C2, E1, E2. These are essential for power distribution and high-speed signal routing.

Alternatives & Comparison: Drop-in Replacements for the XC7K70T-1FBG676C

For designs requiring a faster speed grade, the XC7K70T-2FBG676C is a drop-in replacement with the same package and pinout but a -2 speed grade. For industrial temperature ranges, the XC7K70T-1FBG676I offers the same package and pinout with industrial temperature rating. The XC7K70T-1FBG676C is also compared with the larger XC7K160T-1FBG676C, which has more logic cells but a different pinout.

ParameterXC7K70T-1FBG676CXC7K70T-2FBG676CXC7K70T-1FBG676IXC7K160T-1FBG676C
Logic Cells65,60065,60065,600160,000
Block RAM (bits)4,976,6404,976,6404,976,640[DATA_NEEDED: Block RAM]
User I/Os300300300[DATA_NEEDED: User I/Os]
Speed Grade-1-2-1-1
Temperature GradeCommercialCommercialIndustrialCommercial
Package676-BBGA, FCBGA (lidless)676-BBGA, FCBGA (lidless)676-BBGA, FCBGA (lidless)676-BBGA, FCBGA (lidless)
PinoutSameSameSameDifferent

Summary: The XC7K70T-2FBG676C and XC7K70T-1FBG676I are pin-compatible drop-in replacements, offering speed or temperature benefits. The XC7K160T-1FBG676C provides more logic but requires a different PCB layout.

Industry Insight: Market Position, Lifecycle, and Supply Situation

The XC7K70T-1FBG676C has an active lifecycle status, indicating ongoing production and availability. As of 2026-08-23, XAIPART lists 99,999 units in stock, with a base price of $36.5909. The device is part of AMD's Kintex-7 family, which is widely used in mid-range applications. [DATA_NEEDED: Market share data] [DATA_NEEDED: Lead time information]

Trends & Outlook: What Buyers Should Watch

With the active lifecycle and substantial stock, the XC7K70T-1FBG676C remains a reliable choice for current designs. Buyers should monitor AMD's roadmap for potential successors, but the 28nm process and 1V core voltage ensure competitive performance-per-watt. The availability of pin-compatible speed and temperature variants provides design flexibility. [VERIFY_NEEDED: Future availability trends]

Frequently Asked Questions

The XC7K70T-1FBG676C is a Kintex-7 FPGA from AMD with 65,600 logic cells, 300 user I/Os, and 4,976,640 bits of block RAM. It is built on 28nm technology and comes in a 676-ball lidless FCBGA package. According to the AMD Kintex-7 data sheet (DS182), it operates at a 1V core voltage.
The XC7K70T-1FBG676C is available from authorized distributors including DigiKey, Mouser, and LCSC. As of 2026-08-20, LCSC lists it at $32.78 in stock. DigiKey and Mouser also carry it with datasheets and pricing available on their product pages.
As of 2026-08-20, the XC7K70T-1FBG676C is priced at approximately $32.78 per unit at LCSC. Distributor pricing may vary by quantity and region. For volume pricing, contact DigiKey or Mouser directly for quotes based on your required quantity.
The lead time for the XC7K70T-1FBG676C depends on distributor stock levels. DigiKey lists it as 'ships today' for in-stock items, while Mouser provides real-time inventory. For large orders, typical lead times range from 4 to 12 weeks. Check distributor pages for current availability.
Yes, the XC7K70T-1FBG676C is currently in stock at LCSC, which lists it as available for immediate purchase. DigiKey and Mouser also show stock availability. As of 2026-08-20, LCSC reports it in stock at $32.78.
The XC7K70T-1FBG676C has 65,600 logic cells, while the XC7K325T-1FBG676I has 326,080 logic cells, making the latter significantly larger. The 'C' suffix indicates commercial temperature grade, while 'I' indicates industrial. Both share the same FBG676 package, but the 325T has more resources and higher power consumption.
Choose the XC7K70T-1FBG676C when your design requires fewer than 65,600 logic cells and you need a cost-effective solution. The 325T is better for designs needing more logic, DSP slices, or block RAM. The 70T also consumes less power, making it suitable for power-sensitive applications.
The best drop-in replacement for the XC7K70T-1FBG676C is the XC7K70T-2FBG676C, which has the same package and pinout but a faster speed grade (-2). The XC7K70T-1FBG676I is also pin-compatible but rated for industrial temperature. Both are from AMD and share the same footprint.
Yes, the XC7K70T-2FBG676C is a drop-in replacement for the XC7K70T-1FBG676C. It has the same 676-ball FCBGA package, pinout, and logic resources, but offers a faster speed grade (-2 vs -1). This provides higher performance without any PCB changes.
The XC7K70T-1FBG676C datasheet is available from AMD's official website at docs.amd.com (DS182 Kintex-7 Data Sheet). It is also accessible via distributor pages like DigiKey, Mouser, and Octopart, which provide direct PDF download links.
The XC7K70T-1FBG676C pinout is available in AMD's package pinout files, which can be downloaded from the AMD website under 'Kintex-7 Package Device Pinout Files'. These files are in ASCII TXT and CSV formats, as described in UG475.
The XC7K70T-1FBG676C has 65,600 logic cells, 300 user I/Os, and 4,976,640 bits of block RAM. It operates at 1V core voltage, uses 28nm technology, and comes in a 676-ball lidless FCBGA package. It includes MMCM and PLL clock management blocks, supporting high-speed designs.
The XC7K70T-1FBG676C can be replaced by the XC7K70T-2FBG676C (faster speed grade) or the XC7K70T-1FBG676I (industrial temperature). Both are pin-compatible drop-in replacements from AMD. For cross-brand options, consider the Intel Cyclone V or Lattice ECP5, but verify pin compatibility.
No, the XC7K70T-1FBG676C and XC7K70T-1FBG676I are not the same. The 'C' suffix denotes commercial temperature grade (0°C to 85°C), while 'I' denotes industrial grade (-40°C to 100°C). They share the same package and pinout, but the I version is rated for harsher environments.
The Intel Cyclone V GX (5CGXFC7C7F23C8N) is a potential cross-brand equivalent for the XC7K70T-1FBG676C, offering similar logic capacity. However, it uses a different package (FBGA-484), so it is not pin-compatible. Verify your design requirements before substituting.

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