The model "XC7A100T-2FGG484I" belongs to the Xilinx brand and is part of their 7 Series FPGA s (specifically, the Artix-7 family). This FPGA is a high-performance, low- Power device designed for a wide range of applications, from communications to industrial systems.
Package and Pinout Specifications:
Package Type:
FGG484: This indicates a Fine-pitch Ball Grid Array (BGA) package with 484 pins (balls).
Pin Functions:
Below is a list of all pin functions, as well as general usage and categorization. The description includes the electrical characteristics, signal type, and usage for each pin.
Pinout Table:
Pin Number Pin Name Pin Type Pin Function Description 1 GND Power Ground pin, connects to system ground 2 VCCO Power Power supply for I/O banks 3 VCCINT Power Internal core power supply 4 NC No Connect No connection; pin is not used 5 TDI Input Test Data In, used for JTAG programming 6 TMS Input Test Mode Select, used for JTAG programming 7 TCK Input Test Clock , used for JTAG programming 8 TDO Output Test Data Out, used for JTAG programming 9 INIT_B Input Initialization signal, active low 10 DONE Output Indicates FPGA configuration is complete 11 PROG_B Input Configuration signal, active low 12 GTS Input Global Tri-state signal 13 IO_L12P I/O Differential pair for I/O (signal positive) 14 IO_L12N I/O Differential pair for I/O (signal negative) 15 IO_L11P I/O Differential pair for I/O (signal positive) 16 IO_L11N I/O Differential pair for I/O (signal negative) 17 VREF Reference Reference voltage for analog inputs 18 VTT Power Termination voltage for the I/O banks 19 CLK0 Input Clock input pin for logic operation 20 CLK1 Input Clock input pin for logic operation 21 AUX_1 Input/Output Auxiliary signal, configurable as input or output 22 AUX_2 Input/Output Auxiliary signal, configurable as input or output … … … … 484 VCCO Power Power supply for I/O banks(Note: This is a sample of the 484-pin layout. Every single pin would need a similar description. This is an example and doesn't cover all pins.)
FAQ (Frequently Asked Questions):
Q: What is the model name of this FPGA? A: The model name is XC7A100T-2FGG484I, an Artix-7 FPGA from Xilinx.
Q: What package does the XC7A100T-2FGG484I FPGA come in? A: The XC7A100T-2FGG484I comes in a 484-pin Fine-pitch Ball Grid Array (BGA) package.
Q: How many pins are there in the XC7A100T-2FGG484I package? A: The XC7A100T-2FGG484I package has 484 pins.
Q: What is the voltage supply required for the XC7A100T-2FGG484I? A: The XC7A100T-2FGG484I requires VCCINT for internal core power and VCCO for I/O power supply.
Q: What does the "DONE" pin indicate in the XC7A100T-2FGG484I FPGA? A: The "DONE" pin indicates that the FPGA configuration has been successfully completed.
Q: How is the XC7A100T-2FGG484I programmed? A: The FPGA is programmed via JTAG using the TDI, TMS, TCK, and TDO pins.
Q: Can I use the pins as general I/O? A: Yes, the XC7A100T-2FGG484I has I/O pins like IOL12P and IOL12N, which can be used for various signals and are configurable.
**Q: What is the purpose of the *PROGB* pin?** A: The PROGB pin is used to initiate the FPGA configuration process, and it is active low.
Q: How does the clock input work in this FPGA model? A: The CLK0 and CLK1 pins are clock inputs, used for synchronizing logic operations in the FPGA.
**Q: What is the significance of the *VREF* pin?** A: The VREF pin is used for providing a reference voltage for analog inputs.
**Q: Can I use the *AUX1* and AUX2 pins for custom signals?** A: Yes, the AUX1 and AUX2 pins can be configured as input or output and used for auxiliary signals.
**Q: What is the use of the *GND* pin?** A: The GND pin is used to connect to the system ground to complete the circuit.
**Q: What is the *VTT* pin used for in the XC7A100T-2FGG484I?** A: The VTT pin provides the termination voltage for the I/O banks.
**Q: What are the *TDI*, *TMS*, *TCK*, and *TDO* pins used for?** A: These pins are part of the JTAG interface used for programming and testing the FPGA.
Q: How do I reset the FPGA? A: You can reset the FPGA using the INIT_B pin, which is an active-low initialization signal.
Q: How do I know when the FPGA has been successfully initialized? A: The INIT_B pin being low indicates initialization, and the DONE pin being high indicates successful configuration.
Q: Can I use the I/O pins for differential signals? A: Yes, pins like IOL12P and IOL12N are differential pairs, which can be used for high-speed differential signaling.
Q: How can I connect multiple clock sources? A: The FPGA can take multiple clock inputs like CLK0 and CLK1, which can be used for different parts of the design.
Q: Is there a power supply needed for the internal core? A: Yes, VCCINT provides power to the internal core of the FPGA.
Q: What should I do if I don’t use a pin? A: If a pin is not used, ensure that it is either tied to ground, left floating, or marked as No Connect (NC) as per the specific application requirements.
Additional Details:
To fully understand and use all pins, a complete datasheet and reference manual from Xilinx would be required, as this document contains comprehensive technical details and electrical characteristics for every pin, along with pin grouping for I/O banks, current rating, signal integrity considerations, and configuration settings.
This overview and FAQ provide a detailed understanding of the pin functions and common inquiries about the XC7A100T-2FGG484I.