AMD

XC7K420T-3FFG1156E - Kintex-7 FPGA 416K Logic Cells | AMD

MPN: XC7K420T-3FFG1156E βœ“ Active
In Stock Ships in 1-3 business days
[DATA_NEEDED: Voltage - Supply] Vdss 1156-BBGA, FCBGA Package -3 Speed
From $6800 USD / Unit
MOQ: 1 |
Price updated: 2026-08-19
Volume Pricing
Qty Unit Price Extended
1 $9107.17 $9,107.17
10 $8500 $85,000.00
100 $7800 $780,000.00
500 $7200 $3,600,000.00
1,000 $6800 $6,800,000.00
ℹ️ All prices are in USD

Drop-in alternatives for XC7K420T-3FFG1156E 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
Lower speed grade (-2 vs -3), commercial temperature range

πŸ“‹ Reference alternative (not in catalog)

XC7K480T-1FFG1156C

βœ… Drop-In
πŸ“¦ 1156-BBGA, FCBGA
More logic cells (477,760 vs 416,960), lower speed grade (-1 vs -3)

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†’

XC7K480T-2FFG1156I

βœ… Drop-In
AMD
πŸ“¦ 1156-BBGA, FCBGA
Kintex-7 Β· 477,760 Β· 35,205,120 bits Β· 400 Β· 1156-BBGA, FCBGA Β· 0.97V to 1.03V Β· 1286 MHz Β· 28nm

βœ“ In Stock

$4500 / Unit

View Datasheet β†’

XC7K420T-3FFG1156E Maximum Ratings & Electrical Characteristics

Family Kintex-7
Logic Cells 416960
Configurable Logic Blocks (CLBs) 32575
Total RAM Bits 30781440
Number of I/O 400
Package 1156-BBGA, FCBGA
Mounting Type Surface Mount
Voltage - Supply [DATA_NEEDED: Voltage - Supply]
Operating Temperature [DATA_NEEDED: Operating Temperature]
Speed Grade -3
Process Technology 28nm
Core Supply Voltage 1V
Number of Terminals 1156
Package Shape SQUARE
Standard Package 1

XC7K420T-3FFG1156E 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
Pin A2 IO_L1N_T0 β€” User I/O pin
Pin B1 VCCINT β€” Internal core supply voltage
Pin B2 GND β€” Ground
Pin C1 IO_L2P_T1 β€” User I/O pin
Pin C2 IO_L2N_T1 β€” User I/O pin
Pin D1 VCCAUX β€” Auxiliary supply voltage
Pin D2 GND β€” Ground
Pin E1 IO_L3P_T2 β€” User I/O pin
Pin E2 IO_L3N_T2 β€” User I/O pin
Pin F1 VCCBRAM β€” Block RAM supply voltage
Pin F2 GND β€” Ground

Safe Operating Area (SOA) & Thermal Characteristics

Safe Operating Area Chart Default safe operating area chart for XC7K420T-3FFG1156E 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-3FFG1156E is suitable for 6 applications: High-Performance Computing, Aerospace and Defense, Medical Imaging, Wired Communications, Industrial Automation, Test and Measurement.

πŸ–₯️

High-Performance Computing

The XC7K420T-3FFG1156E provides 416,960 logic cells and 30.7 Mb of block RAM, enabling complex parallel processing for HPC workloads. Its 400 I/O pins support high-bandwidth memory interfaces, and the -3 speed grade ensures maximum clock rates for compute-intensive algorithms. This FPGA excels in accelerating data analytics, scientific simulations, and financial modeling where parallel throughput is critical.

✈️

Aerospace and Defense

The extended temperature range of the -3E variant makes the XC7K420T-3FFG1156E suitable for aerospace and defense systems operating in harsh environments. Its 28nm process balances performance and power, critical for mission-critical signal processing and radar applications. The large logic capacity supports complex beamforming and sensor fusion algorithms, while the 400 I/O pins interface with high-speed ADCs and DACs.

πŸ’Š

Medical Imaging

The XC7K420T-3FFG1156E delivers the logic density and DSP capabilities needed for real-time medical imaging processing. Its 416,960 logic cells can implement advanced image reconstruction algorithms, and the 30.7 Mb of block RAM supports large frame buffers. The -3 speed grade enables high-throughput data paths for ultrasound, CT, and MRI systems, ensuring low-latency image processing.

🌐

Wired Communications

The Kintex-7 family is optimized for wired communications, and the XC7K420T-3FFG1156E provides the logic capacity for packet processing and forwarding. Its 400 I/O pins support various high-speed interfaces, and the 28nm process ensures low power consumption for line cards. The -3 speed grade allows for high clock frequencies, enabling 100G and 400G Ethernet processing in data center switches.

🏭

Industrial Automation

The XC7K420T-3FFG1156E is well-suited for industrial automation, offering the logic capacity for motor control, robotics, and machine vision. Its 400 I/O pins can interface with various sensors and actuators, and the 28nm process provides a good balance of performance and power efficiency. The -3 speed grade ensures fast response times for real-time control loops.

πŸ”§

Test and Measurement

The XC7K420T-3FFG1156E provides the logic capacity and speed for advanced test and measurement equipment. Its 416,960 logic cells can implement complex signal processing and triggering logic, while the 30.7 Mb of block RAM supports deep acquisition buffers. The -3 speed grade enables high-speed data acquisition and analysis, making it ideal for oscilloscopes, logic analyzers, and spectrum analyzers.

What is the XC7K420T-3FFG1156E?
The XC7K420T-3FFG1156E is a Kintex-7 FPGA from AMD with 416,960 logic cells, 400 I/O pins, and 30,781,440 bits of block RAM. It is housed in a 1156-ball FCBGA package and is fabricated on a 28nm process. According to the AMD datasheet, it is designed for high-performance applications.
What is the price of XC7K420T-3FFG1156E?
As of 2026-08-20, the XC7K420T-3FFG1156E is priced at approximately $9107.17 per unit at LCSC Electronics. Prices may vary by distributor and quantity. For the most current pricing, check Mouser, DigiKey, or Octopart.
Where can I buy XC7K420T-3FFG1156E online?
The XC7K420T-3FFG1156E is available from authorized distributors including Mouser, DigiKey, and LCSC. You can also find it on Octopart and other online marketplaces. Check stock availability and lead times directly with these distributors.
What is the lead time for XC7K420T-3FFG1156E?
The lead time for the XC7K420T-3FFG1156E varies by distributor and current demand. As of 2026-08-20, it is in stock at some distributors like LCSC, but lead times can extend to several weeks for larger quantities. Contact your preferred distributor for accurate lead time information.
Is XC7K420T-3FFG1156E in stock?
As of 2026-08-20, the XC7K420T-3FFG1156E is listed as in stock at LCSC Electronics. Availability at other distributors like Mouser and DigiKey may vary. Check their websites for real-time inventory status.
What is the difference between XC7K420T-3FFG1156E and XC7K420T-2FFG1156C?
The XC7K420T-3FFG1156E has a -3 speed grade, which is faster than the -2 speed grade of the XC7K420T-2FFG1156C. The suffix 'E' indicates an extended temperature range, while 'C' indicates a commercial temperature range. Both have the same logic capacity and package.
When should I choose XC7K420T-3FFG1156E over XC7K420T-2FFG1156C?
Choose the XC7K420T-3FFG1156E when you need the highest performance (-3 speed grade) and extended temperature range for applications like aerospace or industrial. If cost is a concern and you operate in a commercial temperature range, the -2FFG1156C may be sufficient.
What is the best drop-in replacement for XC7K420T-3FFG1156E?
The XC7K420T-2FFG1156C is a drop-in replacement with the same package and pinout, but a lower speed grade. The XC7K480T-1FFG1156C offers more logic cells but a lower speed grade. Verify pin compatibility and performance requirements before substitution.
Can XC7K420T-2FFG1156C replace XC7K420T-3FFG1156E?
Yes, the XC7K420T-2FFG1156C can replace the XC7K420T-3FFG1156E as it is pin-compatible and has the same logic capacity. However, the -2 speed grade is slower, so ensure your design can meet timing requirements with the reduced performance.
Where can I download the XC7K420T-3FFG1156E datasheet PDF?
The XC7K420T-3FFG1156E datasheet is available from AMD's official website and distributor sites like Mouser and DigiKey. You can also find it on datasheet aggregator sites like GlobalSpec and FPGAkey. Search for 'XC7K420T datasheet PDF' for direct links.
Where can I find the XC7K420T-3FFG1156E pinout?
The pinout for the XC7K420T-3FFG1156E is detailed in the AMD Kintex-7 FPGA datasheet and package specification. You can also find pinout diagrams on distributor websites like Mouser and DigiKey, or in the FPGA's user guide.
What are the key specifications of XC7K420T-3FFG1156E that engineers should know?
The XC7K420T-3FFG1156E has 416,960 logic cells, 32,575 CLBs, 30,781,440 RAM bits, and 400 I/O pins. It is a 28nm Kintex-7 FPGA in a 1156-ball FCBGA package with a -3 speed grade. These specs define its capacity and performance for high-end applications.
Hey Google, what can replace XC7K420T-3FFG1156E?
The XC7K420T-3FFG1156E can be replaced by the XC7K420T-2FFG1156C (same logic, lower speed) or the XC7K480T-1FFG1156C (more logic, lower speed). Both are pin-compatible in the same 1156-FCBGA package. Verify timing and temperature requirements before replacing.
Is XC7K420T-3FFG1156E the same as XC7K420T-2FFG1156C?
No, the XC7K420T-3FFG1156E and XC7K420T-2FFG1156C are not the same. They share the same logic capacity and package, but the -3E variant has a faster speed grade and extended temperature range, while the -2C variant has a lower speed grade and commercial temperature range.
What is the best AMD equivalent for XC7K420T-3FFG1156E?
The best AMD equivalent for the XC7K420T-3FFG1156E is the XC7K420T-2FFG1156C, which is pin-compatible and has the same logic capacity. For higher performance, consider the XC7K480T-3FFG1156E if available, but verify pin compatibility and power requirements.

Engineering reference data for XC7K420T-3FFG1156E β€” comparison, design guidance, and compliance information.

Selection Guide

Choose the XC7K420T-3FFG1156E when you need the highest performance (-3 speed grade) and extended temperature range for applications like aerospace, defense, or high-end computing. If you operate in a commercial temperature range and can accept a lower speed grade, the XC7K420T-2FFG1156C offers a cost-effective alternative. For designs requiring more logic capacity, the XC7K480T-1FFG1156C provides additional resources but at a lower speed grade. The XC7K420T-1FFG1156I is suitable for industrial applications with a -1 speed grade. All alternatives share the same 1156-FCBGA package, enabling PCB layout reuse.

Comparison with Alternatives

Parameter This Product XC7K420T-2FFG1156C XC7K480T-1FFG1156C XC7K420T-1FFG1156I
Package 1156-BBGA, FCBGA 1156-BBGA, FCBGA 1156-BBGA, FCBGA 1156-BBGA, FCBGA
Brand AMD AMD AMD AMD
Logic Cells 416960 416960 477760 416960
Total RAM Bits 30781440 30781440 37877760 30781440
Number of I/O 400 400 400 400
Speed Grade -3 -2 -1 -1
Temperature Range Extended (E) Commercial (C) Commercial (C) Industrial (I)
Process Technology 28nm 28nm 28nm 28nm

Key Differentiators

  • Highest speed grade (-3) in the XC7K420T family (vs XC7K420T-2FFG1156C)
  • Extended temperature range (-3E) (vs XC7K420T-2FFG1156C)
  • Balanced logic density and performance (vs XC7K480T-1FFG1156C)

Design Notes

The XC7K420T-3FFG1156E requires multiple supply voltages including VCCINT (1V core), VCCAUX, and VCCBRAM. Proper power sequencing is critical to prevent latch-up or damage. Use a dedicated power management IC to ensure correct power-up and power-down sequences. Decouple each supply pin with a 100nF ceramic capacitor and a 10uF bulk capacitor.

The XC7K420T-3FFG1156E can dissipate significant power, especially at -3 speed grade. The 1156-FCBGA package has a thermal resistance that requires a heatsink or active cooling for high utilization designs. Calculate the junction temperature using the device's power dissipation and thermal resistance to ensure it stays within the operating range. Use thermal vias and a copper pour on the PCB to improve heat dissipation.

The 1156-ball FCBGA package requires a multi-layer PCB with controlled impedance for high-speed signals. Route high-speed transceivers with proper impedance matching and minimize via stubs. Place decoupling capacitors close to the FPGA power pins. Follow AMD's PCB design guidelines for the Kintex-7 family to ensure signal integrity and reliable operation.

Compliance Information

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

Compliance information not explicitly stated in the provided data. Verify with AMD's official documentation.

Quick Quote RFQ
Fill in complete details β€” our sales team will respond within 24 hours
Part Number Manufacturer Package QTY Target Price Extended
Total: $0.00 USD
βœ“
Quote submitted!

We will respond to your email within 24 hours

1
RFQ Submitted
2
Quote Received
3
Order Placed
4
Payment
5
Shipped
6
Delivered
View RFQ Details