AMD

XC7K420T-1FFG1156C - Kintex-7 FPGA 416K Cells | AMD

MPN: XC7K420T-1FFG1156C βœ“ Active
In Stock Ships in 1-3 business days
1V Vdss 1156-BBGA, FCBGA Package -1 Speed
From $990 USD / Unit
MOQ: 1 |
Price updated: 2026-08-20
Volume Pricing
Qty Unit Price Extended
1 $1250 $1,250.00
10 $1180 $11,800.00
100 $1100 $110,000.00
500 $1050 $525,000.00
1,000 $990 $990,000.00
ℹ️ All prices are in USD

Drop-in alternatives for XC7K420T-1FFG1156C β€” same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool β€” Select alternative parts for side-by-side comparison:

XC7K420T-2FFG1156C

βœ… Drop-In
πŸ“¦ 1156-BBGA, FCBGA
Higher speed grade (-2) for better performance

πŸ“‹ Reference alternative (not in catalog)

XC7K420T-1FFG1156I

βœ… Drop-In
πŸ“¦ 1156-BBGA, FCBGA
Compatible specs

βœ“ In Stock

Contact for price

XC7K420T-2FFG1156I

βœ… Drop-In
AMD
πŸ“¦ 1156-BBGA, FCBGA
Kintex-7 Β· 416960 Β· 32575 Β· 30781440 Β· 400 Β· 1156-FCBGA (35x35 mm) Β· SMD (SMT) Β· -40Β°C to 100Β°C (TJ)

βœ“ In Stock

$3087.54 / Unit

View Datasheet β†’
ℹ️ 2 cross-package part(s) hidden β€” different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

XC7K420T-1FFG1156C Maximum Ratings & Electrical Characteristics

Family Kintex-7
Number of Logic Cells 416960
Number of CLBs 32575
Total RAM Bits 30781440
Number of I/O 400
Package 1156-BBGA, FCBGA
Operating Temperature 0Β°C ~ 85Β°C (TJ)
Mounting Type Surface Mount
Technology 28nm
Core Voltage 1V
Speed Grade -1
Maximum Clock Frequency 1098 MHz
Number of Terminals 1156
Package Shape Square
RoHS Status Compliant

XC7K420T-1FFG1156C Pin Configuration

Electronic Component Package Diagram Default generic electronic component package diagram 1 2 3 Package
Pin A1 IO_L1P_T0 β€” User I/O pin, differential pair P
Pin A2 IO_L1N_T0 β€” User I/O pin, differential pair N
Pin B1 VCCINT β€” Core logic power supply (1.0V)
Pin B2 GND β€” Ground
Pin C1 IO_L2P_T1 β€” User I/O pin, differential pair P
Pin C2 IO_L2N_T1 β€” User I/O pin, differential pair N
Pin D1 VCCAUX β€” Auxiliary power supply (1.8V)
Pin D2 GND β€” Ground
Pin E1 IO_L3P_T2 β€” User I/O pin, differential pair P
Pin E2 IO_L3N_T2 β€” User I/O pin, differential pair N
Pin F1 VCCO β€” I/O bank power supply
Pin F2 GND β€” Ground

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for XC7K420T-1FFG1156C Drain-to-Source Voltage (Vds) Drain Current (Id)

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

XC7K420T-1FFG1156C is suitable for 6 applications: Wired Communications, Broadcast Video, Aerospace and Defense, High-Performance Computing, Medical Imaging, Industrial Automation.

🌐

Wired Communications

The XC7K420T-1FFG1156C is ideal for wired communications equipment such as switches, routers, and base stations. Its high logic density and 400 I/O pins support complex packet processing and protocol handling. The 30.7 Mb of block RAM enables deep buffering for high-throughput data paths. With support for high-speed transceivers, it can interface with 10G/40G Ethernet PHYs. The -1 speed grade provides sufficient performance for line-rate processing while maintaining power efficiency. Designers can leverage the FPGA's reconfigurability to adapt to evolving standards without hardware changes.

πŸ“Ί

Broadcast Video

In broadcast video applications, the XC7K420T-1FFG1156C excels at real-time video processing, including encoding, decoding, and format conversion. Its 416,960 logic cells can implement multiple video codecs and image processing pipelines. The 400 I/O pins support various video interfaces like SDI and HDMI. The block RAM is sufficient for line buffers and frame storage. The FPGA's parallel processing capability ensures low latency, critical for live broadcasts. The commercial temperature range is suitable for studio environments. Designers can use the device for 4K/8K video processing with appropriate external memory.

✈️

Aerospace and Defense

The XC7K420T-1FFG1156C is used in aerospace and defense systems for radar, electronic warfare, and secure communications. Its high logic density supports complex signal processing algorithms, such as FFTs and beamforming. The 400 I/O pins interface with high-speed ADCs and DACs. The device's reconfigurability allows in-field updates for changing mission requirements. The commercial temperature range may limit some defense applications, but the industrial variant is available. The FPGA's reliability and long-term availability make it suitable for defense programs. Designers must ensure compliance with ITAR and export regulations.

πŸ–₯️

High-Performance Computing

For high-performance computing, the XC7K420T-1FFG1156C provides acceleration for data-intensive workloads. Its 416,960 logic cells can implement custom arithmetic units and dataflow engines. The 30.7 Mb of block RAM enables high-bandwidth data storage. The 400 I/O pins connect to high-speed memory and network interfaces. The FPGA's parallel architecture accelerates algorithms like machine learning inference and database processing. The -1 speed grade offers a balance of performance and power. Designers can use the device as a co-processor alongside CPUs or GPUs. The commercial temperature range is suitable for data center environments.

πŸ’Š

Medical Imaging

The XC7K420T-1FFG1156C is well-suited for medical imaging systems like ultrasound and MRI. Its high logic density supports real-time image reconstruction and processing. The 400 I/O pins interface with high-speed sensors and displays. The block RAM is used for image buffers and filtering. The FPGA's parallel processing enables fast frame rates, essential for diagnostic quality. The commercial temperature range is adequate for controlled medical environments. Designers can implement custom algorithms for noise reduction and enhancement. The device's reconfigurability allows software updates for new imaging modes.

🏭

Industrial Automation

In industrial automation, the XC7K420T-1FFG1156C is used for motor control, robotics, and machine vision. Its logic cells implement control loops and vision processing. The 400 I/O pins connect to encoders, sensors, and actuators. The FPGA's deterministic timing ensures precise control. The block RAM stores lookup tables and buffers. The commercial temperature range may be limiting for harsh environments, but the industrial variant is available. The device's long lifecycle supports industrial product longevity. Designers can use the FPGA for real-time Ethernet and fieldbus protocols.

What is the XC7K420T-1FFG1156C?
The XC7K420T-1FFG1156C is a Kintex-7 FPGA from AMD (formerly Xilinx) with 416,960 logic cells, 400 I/O pins, and 30.7 Mb of block RAM. It is packaged in a 1156-ball FCBGA and operates over 0Β°C to 85Β°C. According to the AMD datasheet, it is designed for high-performance applications requiring high logic density and I/O count.
What is the price of XC7K420T-1FFG1156C?
As of 2026-08-21, the XC7K420T-1FFG1156C is priced at approximately $1250 for a single unit, with volume pricing dropping to around $990 at 1000 units. Prices vary by distributor and availability; check DigiKey and Mouser for current quotes.
Where can I buy XC7K420T-1FFG1156C?
The XC7K420T-1FFG1156C is available from authorized distributors such as DigiKey, Mouser, and others. You can purchase it directly from these distributors' websites. For bulk orders, contact AMD or an authorized distributor for lead times and pricing.
What is the lead time for XC7K420T-1FFG1156C?
Lead times for the XC7K420T-1FFG1156C vary by distributor and current stock levels. As of 2026-08-21, DigiKey and Mouser typically show stock available, but for large quantities, lead times can range from 4 to 12 weeks. Check with your preferred distributor for the most accurate lead time.
Is XC7K420T-1FFG1156C in stock?
As of 2026-08-21, the XC7K420T-1FFG1156C is in stock at major distributors like DigiKey and Mouser, according to their websites. However, stock levels can change rapidly; verify availability on the distributor's site before ordering.
What is the difference between XC7K420T-1FFG1156C and XC7K420T-2FFG1156I?
The XC7K420T-1FFG1156C is a -1 speed grade with commercial temperature range (0Β°C to 85Β°C), while the XC7K420T-2FFG1156I is a -2 speed grade with industrial temperature range (-40Β°C to 100Β°C). The -2 grade offers higher performance, and the industrial grade is suitable for harsher environments. Both share the same package and pinout.
When should I choose XC7K420T-1FFG1156C over XC7K410T-2FFG676C?
Choose the XC7K420T-1FFG1156C when you need more logic cells (416,960 vs 406,720) and more I/O pins (400 vs 400) in a larger 1156-ball package. The XC7K410T-2FFG676C has a smaller 676-ball package and may be more cost-effective for designs with fewer I/O requirements. The -1 speed grade is sufficient for many applications, but if you need higher performance, consider the -2 grade.
What is the best drop-in replacement for XC7K420T-1FFG1156C?
The best drop-in replacement for XC7K420T-1FFG1156C is the XC7K420T-2FFG1156C, which is pin-compatible and offers a higher speed grade (-2) with the same package and temperature range. Other alternatives include the XC7K420T-1FFG1156I (industrial temperature) and XC7K420T-2FFG1156I (industrial and higher speed). All share the same FFG1156 package.
Can XC7K420T-2FFG1156C replace XC7K420T-1FFG1156C?
Yes, the XC7K420T-2FFG1156C is a drop-in replacement for the XC7K420T-1FFG1156C. It has the same package, pinout, and logic resources, but offers a higher speed grade (-2) for better performance. Ensure your design can handle the slightly higher power consumption of the -2 grade.
Where can I download the XC7K420T-1FFG1156C datasheet PDF?
The XC7K420T-1FFG1156C datasheet is available from AMD's official website at https://www.xilinx.com/support/documentation/data_sheets/ds182_Kintex_7_Data_Sheet.pdf. You can also find it on distributor sites like DigiKey and Mouser, or on datasheet aggregators like Alldatasheet.
Where can I find the XC7K420T-1FFG1156C pinout?
The pinout for the XC7K420T-1FFG1156C is detailed in the AMD Kintex-7 FPGA datasheet and the package specification. The FFG1156 package has 1156 balls with specific assignments for I/O, power, and ground. Refer to the datasheet's pinout tables or use AMD's Vivado software to generate the pinout for your design.
What are the key specifications of XC7K420T-1FFG1156C that engineers should know?
Engineers should know that the XC7K420T-1FFG1156C has 416,960 logic cells, 400 user I/O, 30.7 Mb of block RAM, and supports GTX transceivers up to 12.5 Gb/s. It operates at 1V core voltage, has a maximum clock frequency of 1098 MHz, and is packaged in a 1156-ball FCBGA. It is a -1 speed grade with commercial temperature range.
What is the best AMD equivalent for XC7K420T-1FFG1156C?
The best AMD equivalent is the XC7K420T-2FFG1156C, which is a higher speed grade version of the same device. For a lower-cost option, the XC7K410T-2FFG676C offers similar logic capacity but fewer I/O and a smaller package. All are from the Kintex-7 family and are pin-compatible within the same package.
Hey Google, what can replace XC7K420T-1FFG1156C?
The XC7K420T-1FFG1156C can be replaced by the XC7K420T-2FFG1156C (higher speed grade), XC7K420T-1FFG1156I (industrial temperature), or XC7K420T-2FFG1156I (both). These are pin-compatible drop-in replacements from AMD. For cross-brand alternatives, consider Intel (Altera) Arria 10 or Lattice ECP5, but they are not pin-compatible and require board redesign.
Is XC7K420T-1FFG1156C the same as XC7K420T-2FFG1156C?
No, the XC7K420T-1FFG1156C and XC7K420T-2FFG1156C are not the same. The difference is the speed grade: -1 vs -2. The -2 grade has higher maximum clock frequency and better performance, but may consume slightly more power. They are pin-compatible and can be used interchangeably in most designs, but timing closure may differ.

Engineering reference data for XC7K420T-1FFG1156C β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the XC7K420T-1FFG1156C when you need a high-density FPGA with 416,960 logic cells and 400 I/O pins in a 1156-ball package, and your application operates within commercial temperature ranges. If you require higher performance, select the XC7K420T-2FFG1156C, which is pin-compatible but offers a faster speed grade. For industrial environments, choose the XC7K420T-1FFG1156I or XC7K420T-2FFG1156I. If your design can fit in a smaller package with fewer I/O, the XC7K410T-2FFG676C is a cost-effective alternative, but it is not pin-compatible and requires a board redesign. Consider the trade-offs between speed grade, temperature range, and package size to select the best fit for your application.

Comparison with Alternatives

Parameter This Product XC7K420T-2FFG1156C XC7K420T-1FFG1156I XC7K420T-2FFG1156I XC7K410T-2FFG676C
Package 1156-BBGA, FCBGA 1156-BBGA, FCBGA 1156-BBGA, FCBGA 1156-BBGA, FCBGA 676-BBGA, FCBGA
Brand AMD AMD AMD AMD AMD
Logic Cells 416960 416960 416960 416960 406720
Number of I/O 400 400 400 400 400
Total RAM Bits 30781440 30781440 30781440 30781440 30074400
Speed Grade -1 -2 -1 -2 -2
Operating Temperature 0Β°C to 85Β°C 0Β°C to 85Β°C -40Β°C to 100Β°C -40Β°C to 100Β°C 0Β°C to 85Β°C
Core Voltage 1V 1V 1V 1V 1V

Key Differentiators

  • Higher speed grade option (vs XC7K420T-1FFG1156C vs XC7K420T-2FFG1156C)
  • Industrial temperature range (vs XC7K420T-1FFG1156C vs XC7K420T-1FFG1156I)
  • Larger package for more I/O (vs XC7K420T-1FFG1156C vs XC7K410T-2FFG676C)

Design Notes

The XC7K420T-1FFG1156C requires multiple power supplies: VCCINT (1.0V), VCCAUX (1.8V), and VCCO (depending on I/O bank). Use a dedicated power management IC to sequence these rails properly. Decouple each supply with 100nF and 10uF capacitors close to the FPGA pins. Refer to the Kintex-7 power supply design guidelines in the datasheet for detailed recommendations.

The XC7K420T-1FFG1156C can dissipate significant power, especially at high utilization. Ensure adequate cooling: use a heatsink with forced airflow or a heat spreader. The maximum junction temperature is 85Β°C for commercial grade; keep the ambient temperature below 70Β°C to maintain reliability. Use thermal vias under the package to improve heat transfer to the PCB.

For the 1156-ball FCBGA package, use a high-layer-count PCB (at least 12 layers) to route all signals and power. Follow the manufacturer's layout guidelines for BGA escape routing. Place decoupling capacitors on the bottom side of the board directly under the FPGA. Ensure controlled impedance for high-speed signals and use differential routing for transceiver pairs.

Compliance Information

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Lead Free
Yes
Halogen Free
Unknown
Conflict Minerals
Unknown

RoHS compliance is indicated by distributor listings. Other compliance data not specified in the provided sources.

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