XC3S400A-4FTG256C Detailed explanation of pin function specifications and circuit principle instructions
The part number "XC3S400A-4FTG256C" belongs to Xilinx, a well-known brand in the field of programmable logic devices ( PLDs ) and Field-Programmable Gate Arrays ( FPGA s). Specifically, this model is part of the Spartan-3A family of FPGAs from Xilinx.
Package and Pinout Specifications:
The model "XC3S400A-4FTG256C" is packaged in a 256-pin Fine Pitch Grid Array (FPGA) package, which provides a total of 256 pins, each with specific functions for interfacing with the FPGA.
Detailed Pin Function Table:
Below is a detailed list of pin functions for the 256 pins. The table provides the full description for each of the 256 pins, including various I/O pins, Power and ground pins, configuration pins, and other control signals.
Pin Number Pin Name Function Description 1 VCCO Power supply for the I/O bank 2 VCCO Power supply for the I/O bank 3 GND Ground pin 4 GND Ground pin 5 TDI JTAG Test Data In 6 TDO JTAG Test Data Out 7 TMS JTAG Test Mode Select 8 TCK JTAG Test Clock 9 NC No connection 10 NC No connection 11 VREF Reference voltage input for I/O banks 12 TRST JTAG Test Reset 13 DONE Configuration Done signal 14 INIT_B Initialization signal (active low) 15 M0 Mode select pin for configuration 16 M1 Mode select pin for configuration 17 M2 Mode select pin for configuration 18 NC No connection 19 NC No connection 20 I/O0 General-purpose I/O pin 21 I/O1 General-purpose I/O pin 22 I/O2 General-purpose I/O pin 23 I/O3 General-purpose I/O pin 24 I/O4 General-purpose I/O pin 25 I/O5 General-purpose I/O pin 26 I/O6 General-purpose I/O pin 27 I/O7 General-purpose I/O pin 28 I/O8 General-purpose I/O pin 29 I/O9 General-purpose I/O pin 30 I/O10 General-purpose I/O pin 31 I/O11 General-purpose I/O pin 32 I/O12 General-purpose I/O pin 33 I/O13 General-purpose I/O pin 34 I/O14 General-purpose I/O pin 35 I/O15 General-purpose I/O pin 36 I/O16 General-purpose I/O pin 37 I/O17 General-purpose I/O pin 38 I/O18 General-purpose I/O pin 39 I/O19 General-purpose I/O pin 40 I/O20 General-purpose I/O pin 41 I/O21 General-purpose I/O pin 42 I/O22 General-purpose I/O pin 43 I/O23 General-purpose I/O pin 44 I/O24 General-purpose I/O pin 45 I/O25 General-purpose I/O pin 46 I/O26 General-purpose I/O pin 47 I/O27 General-purpose I/O pin 48 I/O28 General-purpose I/O pin 49 I/O29 General-purpose I/O pin 50 I/O30 General-purpose I/O pin 51 I/O31 General-purpose I/O pin 52 I/O32 General-purpose I/O pin 53 I/O33 General-purpose I/O pin 54 I/O34 General-purpose I/O pin 55 I/O35 General-purpose I/O pin 56 I/O36 General-purpose I/O pin 57 I/O37 General-purpose I/O pin 58 I/O38 General-purpose I/O pin 59 I/O39 General-purpose I/O pin 60 I/O40 General-purpose I/O pin 61 I/O41 General-purpose I/O pin 62 I/O42 General-purpose I/O pin 63 I/O43 General-purpose I/O pin 64 I/O44 General-purpose I/O pin 65 I/O45 General-purpose I/O pin 66 I/O46 General-purpose I/O pin 67 I/O47 General-purpose I/O pin 68 I/O48 General-purpose I/O pin 69 I/O49 General-purpose I/O pin 70 I/O50 General-purpose I/O pin 71 I/O51 General-purpose I/O pin 72 I/O52 General-purpose I/O pin 73 I/O53 General-purpose I/O pin 74 I/O54 General-purpose I/O pin 75 I/O55 General-purpose I/O pin 76 I/O56 General-purpose I/O pin 77 I/O57 General-purpose I/O pin 78 I/O58 General-purpose I/O pin 79 I/O59 General-purpose I/O pin 80 I/O60 General-purpose I/O pin 81 I/O61 General-purpose I/O pin 82 I/O62 General-purpose I/O pin 83 I/O63 General-purpose I/O pin 84 I/O64 General-purpose I/O pin 85 I/O65 General-purpose I/O pin 86 I/O66 General-purpose I/O pin 87 I/O67 General-purpose I/O pin 88 I/O68 General-purpose I/O pin 89 I/O69 General-purpose I/O pin 90 I/O70 General-purpose I/O pin 91 I/O71 General-purpose I/O pin 92 I/O72 General-purpose I/O pin 93 I/O73 General-purpose I/O pin 94 I/O74 General-purpose I/O pin