component
ATSAMC21E16A-ANT
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "atsamc21e16a-ant",
"title": "ATSAMC21E16A-ANT",
"brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"atsamc21e16a-ant",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATSAMC21E16A-ANT",
"manufacturer": "Microchip Tech",
"package": "TQFP-32(7x7)",
"pin_count": 32,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7ca0693ab79435b34d08da2f9e2ec965.pdf",
"parts": {
"symbol": "atsamc21e16a-ant.kicad_sym",
"footprint": "atsamc21e16a-ant.kicad_mod",
"model_3d": "atsamc21e16a-ant-hero.glb",
"model_3d_plain": "atsamc21e16a-ant-etched.glb",
"model_3d_step": "atsamc21e16a-ant-etched.step",
"model_3d_step_plain": "atsamc21e16a-ant.step",
"lbr": "atsamc21e16a-ant.lbr"
},
"distributor_links": {
"lcsc": "C2054760",
"digikey": "150-ATSAMC21E16A-ANTTR-ND",
"mouser": "556-ATSAMC21E16A-ANT"
},
"distributor_check": {
"checked_at": "2026-10-30T22:44:31Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "150-ATSAMC21E16A-ANTTR-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATSAMC21E16A-ANT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "PORT group A I/O pin also usable as EXTINT[0], SERCOM1 PAD[0], TCC2 WO[0], CMP[2], and XIN32 crystal input for the 32.768 kHz oscillator."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "PORT group A I/O pin also usable as EXTINT[1], SERCOM1 PAD[1], TCC2 WO[1], CMP[3], and XOUT32 crystal output for the 32.768 kHz oscillator."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "Analog-capable I/O pin with AIN[0], AIN[4], touch input Y[0], and the DAC output VOUT, supplied from VDDANA."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "Analog-capable I/O pin with AIN[1], AIN[5], touch input Y[1], and the ADC/DAC external reference VREFA."
},
{
"number": "5",
"name": "PA04",
"type": "bidirectional",
"description": "I/O pin with AIN[4] and AIN[0], touch input Y[2], SERCOM0 PAD[0], TCC0 WO[0], and the SDADC external reference VREFB."
},
{
"number": "6",
"name": "PA05",
"type": "bidirectional",
"description": "I/O pin with AIN[5] and AIN[1], touch input Y[3], SERCOM0 PAD[1], and TCC0 WO[1]."
},
{
"number": "7",
"name": "PA06",
"type": "bidirectional",
"description": "I/O pin with AIN[6], AIN[2], AINN[0], touch input Y[4], SERCOM0 PAD[2], and TCC1 WO[0]."
},
{
"number": "8",
"name": "PA07",
"type": "bidirectional",
"description": "I/O pin with AIN[7], AIN[3], AINP[0], touch input Y[5], SERCOM0 PAD[3], and TCC1 WO[1]."
},
{
"number": "9",
"name": "VDDANA",
"type": "power_in",
"description": "Analog supply pin for the ADC, DAC, analog comparators, and other analog blocks."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground pin for the device."
},
{
"number": "11",
"name": "PA08",
"type": "bidirectional",
"description": "I/O pin also usable as NMI, AIN[8], touch input X[0]/Y[16], SERCOM0 PAD[0], SERCOM2 PAD[0] (I2C-capable), TCC0 WO[0], and CCL1 IN[3]."
},
{
"number": "12",
"name": "PA09",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[9], AIN[9], touch input X[1]/Y[17], SERCOM0 PAD[1], SERCOM2 PAD[1] (I2C-capable), and TCC0 WO[1]."
},
{
"number": "13",
"name": "PA10",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[10], AIN[10], touch input X[2]/Y[18], SERCOM0 PAD[2], SERCOM2 PAD[2], TCC1 WO[0], TCC0 WO[2], and GCLK_IO[4]."
},
{
"number": "14",
"name": "PA11",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[11], AIN[11], touch input X[3]/Y[19], SERCOM0 PAD[3], SERCOM2 PAD[3], TCC1 WO[1], TCC0 WO[3], and GCLK_IO[5]."
},
{
"number": "15",
"name": "PA14",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[14], SERCOM2 PAD[2], SERCOM4 PAD[2], TC4 WO[0], TCC0 WO[4], GCLK_IO[0], and XOSC crystal input XIN."
},
{
"number": "16",
"name": "PA15",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[15], SERCOM2 PAD[3], SERCOM4 PAD[3], TC4 WO[1], TCC0 WO[5], GCLK_IO[1], and XOSC crystal output XOUT."
},
{
"number": "17",
"name": "PA16",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[0], touch input X[4]/Y[20], SERCOM1 PAD[0], SERCOM3 PAD[0], TCC2 WO[0], TCC0 WO[6], GCLK_IO[2], and CCL0 IN[0]."
},
{
"number": "18",
"name": "PA17",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[1], touch input X[5]/Y[21], SERCOM1 PAD[1], SERCOM3 PAD[1], TCC2 WO[1], TCC0 WO[7], and GCLK_IO[3]."
},
{
"number": "19",
"name": "PA18",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[2], touch input X[6]/Y[22], SERCOM1 PAD[2], SERCOM3 PAD[2], TC4 WO[0], TCC0 WO[2], and AC/CMP[0]."
},
{
"number": "20",
"name": "PA19",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[3], touch input X[7]/Y[23], SERCOM1 PAD[3], SERCOM3 PAD[3], TC4 WO[1], TCC0 WO[3], and AC/CMP[1]."
},
{
"number": "21",
"name": "PA22",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[6], touch input X[10]/Y[26], SERCOM3 PAD[0], SERCOM5 PAD[0], TC0 WO[0], TCC0 WO[4], GCLK_IO[6], and CCL2 IN[6] (I2C-capable)."
},
{
"number": "22",
"name": "PA23",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[7], touch input X[11]/Y[27], SERCOM3 PAD[1], SERCOM5 PAD[1], TC0 WO[1], TCC0 WO[5], and GCLK_IO[7] (I2C-capable)."
},
{
"number": "23",
"name": "PA24",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[12], SERCOM3 PAD[2], SERCOM5 PAD[2], TC1 WO[0], TCC1 WO[2], CAN0 TX, and AC/CMP[2]."
},
{
"number": "24",
"name": "PA25",
"type": "bidirectional",
"description": "I/O pin also usable as EXTINT[13], SERCOM3 PAD[3], SERCOM5 PAD[3], TC1 WO[1], TCC1 WO[3], CAN0 RX, and AC/CMP[3]."
},
{
"number": "25",
"name": "PA27",
"type": "bidirectional",
"description": "I/O pin in the VDDIN power domain, also usable as EXTINT[15] and GCLK_IO[0]."
},
{
"number": "26",
"name": "RESET",
"type": "input",
"description": "Active-low external reset input pin of the device."
},
{
"number": "27",
"name": "PA28",
"type": "bidirectional",
"description": "I/O pin in the VDDIN power domain, also usable as EXTINT[8] and GCLK_IO[0]."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Ground pin for the device."
},
{
"number": "29",
"name": "VDDCORE",
"type": "power_out",
"description": "Regulated output of the internal voltage regulator supplying the device core."
},
{
"number": "30",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply to the internal voltage regulator and the VDDIN-domain I/O pins."
},
{
"number": "31",
"name": "PA30",
"type": "bidirectional",
"description": "I/O pin in the VDDIN domain that serves as the Serial Wire Debug clock SWCLK, also usable as EXTINT[10], SERCOM1 PAD[2], TCC1 WO[0], GCLK_IO[0], and CCL1 IN[3]."
},
{
"number": "32",
"name": "PA31",
"type": "bidirectional",
"description": "I/O pin in the VDDIN domain that serves as the Serial Wire Debug data pin SWDIO, also usable as EXTINT[11], SERCOM1 PAD[3], TCC1 WO[1], and CCL1 OUT[1]."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
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"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pinout taken from the VQFN32/TQFP32 figure on page 21 and the SAM C21E multiplexing table (6-2). The"
],
"pages_sent": 104,
"cost_usd": 0.1522,
"at": "2026-10-30T22:44:16"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/7ca0693ab79435b34d08da2f9e2ec965.pdf",
"pages": 1206,
"sha256": "5991eaad10c5cd35",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 32,
"described": 32,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
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"file": "atsamc21e16a-ant.step",
"role": "plain",
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"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
9,
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "53431be61c684e9d923915676a90cb08050c23ee3f834d76a77a3b19b41422f1",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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{
"file": "atsamc21e16a-ant-etched.step",
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"sha256": "fa98eeb8ff39d94574a503978e069d9ef99195cb8ce01bef9d3c7f3580615260",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-32(7x7)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "32"
},
"appearance": {
"contacts": {
"quote": "including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. In the Self Capacitance mode, the PTC requires only one pin (Y-line) for each touch sensor.",
"page": 987,
"doc": "ds.pdf",
"plating": "tin"
},
"housing": {
"quote": "10.3. Micro Trace Buffer MTB base address corrected from 0x41006000 to 0x41008000. 22. SUPC – Supply Controller 22.6.3.3. VDD Brown-Out Detector (BODVDD): Removed",
"page": 1198,
"doc": "ds.pdf",
"material": "PC"
},
"version": 1,
"datasheet_sha256": "5991eaad10c5cd3555f61fe072f9466b16bf554c42746cc968d345ce91be908e"
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"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "5991eaad10c5cd3555f61fe072f9466b16bf554c42746cc968d345ce91be908e",
"rows": [
{
"name": "VDDIO supply voltage",
"symbol": "VDDIO",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "Powers I/O lines and XOSC",
"source_page": 38,
"source": "datasheet"
},
{
"name": "VDDIN supply voltage",
"symbol": "VDDIN",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "Powers I/O lines, OSC48M, TOSC and internal regulator",
"source_page": 38,
"source": "datasheet"
},
{
"name": "VDDANA supply voltage",
"symbol": "VDDANA",
"kind": "recommended_operating",
"unit": "V",
"min": 2.7,
"typ": null,
"max": 5.5,
"conditions": "Powers I/O lines, ADC, AC, DAC, PTC, SDADC, OSCULP32K, OSC32K and XOSC32K",
"source_page": 38,
"source": "datasheet"
},
{
"name": "VDDCORE internal regulated voltage",
"symbol": "VDDCORE",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.2,
"max": null,
"conditions": "Internal regulated voltage output powering the core, memories, peripherals and FDPLL96M",
"source_page": 38,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
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"discovery_pitch": "ATSAMC21E16A-ANT (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
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