Xilinx FPGA Designer

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FPGA Families

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Part NumberFamilyLogicBRAMDSPI/OPackageCost

Official Documentation

Xilinx Design Hubs FPGA Product Guide Download Vivado

Family Datasheets

Part Number Decoder

Family Prefix

  • XC7A = Artix-7
  • XC7K = Kintex-7
  • XC7V = Virtex-7
  • XC7Z = Zynq-7000
  • XCKU = Kintex US+
  • XCVU = Virtex US+
  • XCZU = Zynq US+

Speed Grade

  • -1 = Standard
  • -2 = High Performance
  • -3 = Highest
  • -L = Low Power
  • -I = Industrial Temp
  • -C = Commercial

Package Codes

  • FFG = Fine Pitch BGA
  • FBG = Flip Chip BGA
  • CSG = Chip Scale
  • TQG = Thin QFP
  • CLG = Chip Lid BGA

Design Workflow

1. Requirements

Define I/O, processing, power budget, and environmental constraints.

2. Device Selection

Choose FPGA based on logic, RAM, DSP, I/O, and cost requirements.

3. HDL Design

Write RTL in Verilog/VHDL following synthesis guidelines.

4. Verification

Simulation, timing analysis using Vivado or ModelSim.

5. Implementation

Synthesis, placement, routing with timing constraints.

6. Board Design

PCB with proper power, signal integrity, thermals.

Power Architecture

Voltage Rails

  • VCCINT: Core (0.85-1.0V)
  • VCCAUX: Auxiliary (1.8V)
  • VCCBRAM: RAM (1.0V)
  • VCCO: I/O Banks (1.2-3.3V)
  • VCCMGT: Transceivers

Power Sequencing

VCCINT → VCCBRAM → VCCAUX → VCCO. Improper sequencing damages devices.

Decoupling

0.1µF per power pin, bulk 10-100µF near entry. Use low-ESR ceramics.

💡 Clock Domain Crossing

Use 2-stage synchronizers for CDC. Use Xilinx xpm_cdc primitives for verified solutions.

💡 Reset Strategy

Prefer synchronous resets. 7-series and newer have better timing with synchronous reset.

💡 Resource Usage

Target 70-80% LUT utilization max. Leave room for debug logic (ILA, VIO).

💡 Block RAM

Use synchronous read for BRAM inference. Consider true dual-port for shared memory.

💡 DSP Usage

Structure multiplies for DSP48 mapping. Use pipelining for max frequency.

💡 Timing Constraints

Define all clocks with create_clock. Set accurate I/O delays for interfaces.

💡 I/O Planning

Group related I/Os per bank. Match VCCO voltages within banks.

💡 Power Optimization

Clock gate inactive modules. Enable BRAM cascade for deep memories.

💡 Debug Planning

Plan ILA probes early. Reserve I/O for JTAG access.

💡 IP Integration

Use IP Integrator for SoC designs. Lock IP versions for reproducibility.

Application Areas

Industrial

Motor control, PLC, robotics

Spartan/Artix

Video

4K/8K encoding, imaging

Kintex/Virtex

Signal Processing

SDR, radar, sonar

Zynq/RFSoC

AI/ML

Neural network inference

Versal AI

Aerospace

Avionics, secure comms

Virtex/Kintex

5G/Telecom

Base stations, networking

UltraScale+

Test & Measure

DAQ, protocol analyzers

Artix/Kintex

Medical

Ultrasound, CT/MRI

Zynq/Kintex

Power Estimation

Memory Calculator

Timing Calculator

FPGA Comparison

Select up to 3 FPGAs to compare specifications.