component
ATSAMC21E18A-MNT
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "atsamc21e18a-mnt",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"atsamc21e18a-mnt",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atsamc21e18a-mnt.kicad_sym",
"atsamc21e18a-mnt.kicad_mod",
"atsamc21e18a-mnt.glb",
"atsamc21e18a-mnt.step",
"atsamc21e18a-mnt.lbr",
"docs/hero.png",
"docs/atsamc21e18a-mnt-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atsamc21e18a-mnt-hero.glb",
"atsamc21e18a-mnt-hero.overlay.json",
"atsamc21e18a-mnt-etched.glb"
],
"component": {
"mpn": "ATSAMC21E18A-MNT",
"manufacturer": "Microchip Tech",
"package": "VQFN-32-EP(5x5)",
"pin_count": 33,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7ca0693ab79435b34d08da2f9e2ec965.pdf",
"parts": {
"symbol": "atsamc21e18a-mnt.kicad_sym",
"footprint": "atsamc21e18a-mnt.kicad_mod",
"model_3d": "atsamc21e18a-mnt-hero.glb",
"model_3d_plain": "atsamc21e18a-mnt-etched.glb",
"model_3d_step": "atsamc21e18a-mnt-etched.step",
"model_3d_step_plain": "atsamc21e18a-mnt.step",
"lbr": "atsamc21e18a-mnt.lbr"
},
"distributor_links": {
"lcsc": "C2055133",
"digikey": "150-ATSAMC21E18A-MNTTR-ND",
"mouser": "556-ATSAMC21E18A-MNT"
},
"distributor_check": {
"checked_at": "2026-10-31T06:22:12Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "150-ATSAMC21E18A-MNTTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "556-ATSAMC21E18A-MNT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA00",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[0], SERCOM1/PAD[0], TCC2/WO[0], AC CMP[2], and XIN32 for the 32.768 kHz crystal."
},
{
"number": "2",
"name": "PA01",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[1], SERCOM1/PAD[1], TCC2/WO[1], AC CMP[3], and XOUT32 for the 32.768 kHz crystal."
},
{
"number": "3",
"name": "PA02",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[2], ADC0 AIN[0], ADC1 AIN[4], PTC Y[0], and DAC VOUT."
},
{
"number": "4",
"name": "PA03",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[3], ADC/DAC VREFA, ADC0 AIN[1], ADC1 AIN[5], and PTC Y[1]."
},
{
"number": "5",
"name": "PA04",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[4], SDADC VREFB, ADC0 AIN[4], ADC1 AIN[0], PTC Y[2], SERCOM0/PAD[0], TCC0/WO[0], CCL0/IN[0]."
},
{
"number": "6",
"name": "PA05",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[5], ADC0 AIN[5], ADC1 AIN[1], PTC Y[3], SERCOM0/PAD[1], TCC0/WO[1], CCL0/IN[1]."
},
{
"number": "7",
"name": "PA06",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[6], ADC0 AIN[6], ADC1 AIN[2], PTC Y[4], SDADC AINN[0], SERCOM0/PAD[2], TCC1/WO[0], CCL0/IN[2]."
},
{
"number": "8",
"name": "PA07",
"type": "bidirectional",
"description": "GPIO on VDDANA with EXTINT[7], ADC0 AIN[7], ADC1 AIN[3], PTC Y[5], SDADC AINP[0], SERCOM0/PAD[3], TCC1/WO[1], CCL0/OUT[0]."
},
{
"number": "9",
"name": "VDDANA",
"type": "power_in",
"description": "Analog input supply; the pins listed with VDDANA supply (PA00-PA07 etc.) are powered from it."
},
{
"number": "10",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "11",
"name": "PA08",
"type": "bidirectional",
"description": "GPIO on VDDIO with NMI, ADC0 AIN[8], ADC1 AIN[10], PTC X[0]/Y[16], SERCOM0/PAD[0], SERCOM2/PAD[0], TCC0/WO[0], TCC1/WO[2], CCL1/IN[3]."
},
{
"number": "12",
"name": "PA09",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[9], ADC0 AIN[9], ADC1 AIN[11], PTC X[1]/Y[17], SERCOM0/PAD[1], SERCOM2/PAD[1], TCC0/WO[1], TCC1/WO[3], CCL1/IN[4]."
},
{
"number": "13",
"name": "PA10",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[10], ADC0 AIN[10], PTC X[2]/Y[18], SERCOM0/PAD[2], SERCOM2/PAD[2], TCC1/WO[0], TCC0/WO[2], GCLK_IO[4], CCL1/IN[5]."
},
{
"number": "14",
"name": "PA11",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[11], ADC0 AIN[11], PTC X[3]/Y[19], SERCOM0/PAD[3], SERCOM2/PAD[3], TCC1/WO[1], TCC0/WO[3], GCLK_IO[5], CCL1/OUT[1]."
},
{
"number": "15",
"name": "PA14",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[14], SERCOM2/PAD[2], TC4/WO[0], TCC0/WO[4], GCLK_IO[0], and XIN for the crystal oscillator."
},
{
"number": "16",
"name": "PA15",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[15], SERCOM2/PAD[3], TC4/WO[1], TCC0/WO[5], GCLK_IO[1], and XOUT for the crystal oscillator."
},
{
"number": "17",
"name": "PA16",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[0], PTC X[4]/Y[20], SERCOM1/PAD[0], SERCOM3/PAD[0], TCC2/WO[0], TCC0/WO[6], GCLK_IO[2], CCL0/IN[0]."
},
{
"number": "18",
"name": "PA17",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[1], PTC X[5]/Y[21], SERCOM1/PAD[1], SERCOM3/PAD[1], TCC2/WO[1], TCC0/WO[7], GCLK_IO[3], CCL0/IN[1]."
},
{
"number": "19",
"name": "PA18",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[2], PTC X[6]/Y[22], SERCOM1/PAD[2], SERCOM3/PAD[2], TC4/WO[0], TCC0/WO[2], AC CMP[0], CCL0/IN[2]."
},
{
"number": "20",
"name": "PA19",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[3], PTC X[7]/Y[23], SERCOM1/PAD[3], SERCOM3/PAD[3], TC4/WO[1], TCC0/WO[3], AC CMP[1], CCL0/OUT[0]."
},
{
"number": "21",
"name": "PA22",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[6], PTC X[10]/Y[26], SERCOM3/PAD[0], SERCOM5/PAD[0], TC0/WO[0], TCC0/WO[4], GCLK_IO[6], CCL2/IN[6]."
},
{
"number": "22",
"name": "PA23",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[7], PTC X[11]/Y[27], SERCOM3/PAD[1], SERCOM5/PAD[1], TC0/WO[1], TCC0/WO[5], GCLK_IO[7], CCL2/IN[7]."
},
{
"number": "23",
"name": "PA24",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC1/WO[0], TCC1/WO[2], CAN0/TX, AC CMP[2], CCL2/IN[8]."
},
{
"number": "24",
"name": "PA25",
"type": "bidirectional",
"description": "GPIO on VDDIO with EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC1/WO[1], TCC1/WO[3], CAN0/RX, AC CMP[3], CCL2/OUT[2]."
},
{
"number": "25",
"name": "PA27",
"type": "bidirectional",
"description": "GPIO on VDDIN with EXTINT[15] and GCLK_IO[0]."
},
{
"number": "26",
"name": "RESET",
"type": "input",
"description": "External reset input, active low."
},
{
"number": "27",
"name": "PA28",
"type": "bidirectional",
"description": "GPIO on VDDIN with EXTINT[8] and GCLK_IO[0]."
},
{
"number": "28",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "29",
"name": "VDDCORE",
"type": "power_out",
"description": "Regulated output supply for the core."
},
{
"number": "30",
"name": "VDDIN",
"type": "power_in",
"description": "Input supply; the datasheet gives the device operating range as 2.7V to 5.5V."
},
{
"number": "31",
"name": "PA30",
"type": "bidirectional",
"description": "GPIO on VDDIN with EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0], GCLK_IO[0], CCL1/IN[3], and SWCLK for serial wire debug."
},
{
"number": "32",
"name": "PA31",
"type": "bidirectional",
"description": "GPIO on VDDIN with EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1], CCL1/OUT[1], and SWDIO for serial wire debug."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet pinout (VQFN32/TQFP32 shared figure) shows only pins 1-32 and does not list or describ; The 32-pin package has no VDDIO pin, yet the mux table lists VDDIO as the supply for PA08-PA25. The ; The pinout figure is shared by VQFN32 and TQFP32 and covers both SAM C21E and SAM C20E. The mux func"
],
"pages_sent": 104,
"cost_usd": 0.9582,
"at": "2026-10-31T06:21:37"
},
"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": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "atsamc21e18a-mnt.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.875
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atsamc21e18a-mnt-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.875
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "4713a4511dafd5f55c7f4602135767c9032230965e98c02627bcc3f1c21797f0",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "S8B",
"source_page": 1171,
"D": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 0.9,
"range_mm": [
0.8,
1.0
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "atsamc21e18a-mnt.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}