component
TLC2543CDWR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADCs), SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "TLC2543CDWR",
"brief": "Texas Instruments Analog To Digital Converters (ADCs), SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"manufacturer": "Texas Instruments",
"package": "SOIC-20-300mil",
"pin_count": 20,
"category": "ADC/DAC/Data Conversion",
"subcategory": "Analog To Digital Converters (ADCs)",
"datasheet": "https://www.ti.com/cn/lit/gpn/tlc2543",
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"lcsc": "C2692310",
"digikey": "296-1307-2-ND",
"mouser": "595-TLC2543CDWR"
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"number": "1",
"name": "AIN0",
"type": "input",
"description": "Multiplexed analog input channel 0; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
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{
"number": "2",
"name": "AIN1",
"type": "input",
"description": "Multiplexed analog input channel 1; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "3",
"name": "AIN2",
"type": "input",
"description": "Multiplexed analog input channel 2; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "4",
"name": "AIN3",
"type": "input",
"description": "Multiplexed analog input channel 3; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "5",
"name": "AIN4",
"type": "input",
"description": "Multiplexed analog input channel 4; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "6",
"name": "AIN5",
"type": "input",
"description": "Multiplexed analog input channel 5; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "7",
"name": "AIN6",
"type": "input",
"description": "Multiplexed analog input channel 6; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "8",
"name": "AIN7",
"type": "input",
"description": "Multiplexed analog input channel 7; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "9",
"name": "AIN8",
"type": "input",
"description": "Multiplexed analog input channel 8; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground return terminal for the internal circuitry; all voltage measurements are referenced to GND."
},
{
"number": "11",
"name": "AIN9",
"type": "input",
"description": "Multiplexed analog input channel 9; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "12",
"name": "AIN10",
"type": "input",
"description": "Multiplexed analog input channel 10; the driving source impedance should be less than or equal to 50 Ω for 4.1-MHz I/O CLOCK operation and capable of slewing into 60 pF."
},
{
"number": "13",
"name": "REF–",
"type": "input",
"description": "Negative reference voltage, nominally ground; the lower reference value is applied here and the input range is set by the difference from REF+."
},
{
"number": "14",
"name": "REF+",
"type": "input",
"description": "Positive reference voltage, nominally VCC; the maximum input voltage range is the difference between this terminal and REF-."
},
{
"number": "15",
"name": "CS",
"type": "input",
"description": "Chip select; a high-to-low transition resets the internal counters and enables DATA OUT, DATA INPUT and I/O CLOCK, and a low-to-high transition disables DATA INPUT and I/O CLOCK within a setup time."
},
{
"number": "16",
"name": "DATA OUT",
"type": "tri_state",
"description": "3-state serial output for the A/D conversion result, in high impedance when CS is high and active when CS is low, shifting out the MSB/LSB-first result on each falling edge of I/O CLOCK."
},
{
"number": "17",
"name": "DATA INPUT",
"type": "input",
"description": "Serial-data input where a 4-bit MSB-first address selects the next analog input or self-test voltage, shifted in on the first four rising edges of I/O CLOCK."
},
{
"number": "18",
"name": "I/O CLOCK",
"type": "input",
"description": "Input/output clock that shifts in the address and control bits, starts the sample period after the fourth falling edge, and transfers conversion control on the last falling edge; it operates at 0 to 4.1 MHz with 120 ns minimum high and low pulse widths."
},
{
"number": "19",
"name": "EOC",
"type": "output",
"description": "End-of-conversion output that goes low after the last falling edge of I/O CLOCK and returns high when the conversion is complete and the data is ready for transfer."
},
{
"number": "20",
"name": "VCC",
"type": "power_in",
"description": "Positive supply voltage, specified at 4.5 V minimum, 5 V nominal and 5.5 V maximum."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
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"primary_model": "claude-haiku-5-5",
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"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet gives one shared top-view pin assignment for the DB, DW, J and N packages; the DW (SOI; The ordering table (page 2 and page 22) confirms TLC2543CDWR is the SOIC (DW) 20-pin tape-and-reel o; KiCad ERC has no analog pin class, so the 11 analog inputs are typed as input."
],
"pages_sent": 8,
"cost_usd": 0.069,
"at": "2026-10-11T09:26:21"
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"pages": 40,
"sha256": "4f0ece16b966081b",
"source_tier": "lcsc"
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"cad": "KiCad official (CC-BY-SA 4.0)",
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"described": 20,
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"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "SOIC-20-300mil",
"Category": "ADC/DAC/Data Conversion",
"Pins": "20"
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