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ATSAMC21J18A-ANT

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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentembedded processors & controllersatsamc21j18a-antfactory-2.0.0extractor-text

Verified ATSAMC21J18A-ANT

by Ray · last 13 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

13 Nov 2026RayPublished by the parts factory: tier mfr, 64 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • •array (skip): not an array of element pairs
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ATSAMC21J18A-ANT · TQFP-64(10x10) · 64 pins
  • ✓copper: 64 copper pads, none touching another net
  • ✓datasheet: all 64 pin names found in the 1206-page datasheet
  • ✓distributor: lcsc C2055280, digikey 150-ATSAMC21J18A-ANTTR-ND, mouser 556-ATSAMC21J18A-ANT
  • ✓family: TQFP-64_10x10mm_P0.5mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-kr62mpxh/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.1131)
  • ✓pads: 64 pins = 64 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 64 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 74 kB, viewers/symbol.html 41 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ atsamc21j18a-ant.kicad_sym✓ atsamc21j18a-ant.kicad_mod✓ atsamc21j18a-ant.step
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ATSAMC21J18A-ANT

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · TQFP-64(10x10)

ATSAMC21J18A-ANT from Microchip Tech, in a TQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model). Symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 PA00 bidirectional General-purpose I/O on VDDANA with EXTINT[0], SERCOM1/PAD[0], TCC2/WO[0] and XIN32 (32.768 kHz crystal input).
2 PA01 bidirectional General-purpose I/O on VDDANA with EXTINT[1], SERCOM1/PAD[1], TCC2/WO[1] and XOUT32 (32.768 kHz crystal output).
3 PA02 bidirectional General-purpose I/O on VDDANA with EXTINT[2], ADC0 AIN[0], ADC1 AIN[4], PTC Y[0] and DAC VOUT.
4 PA03 bidirectional General-purpose I/O on VDDANA with EXTINT[3], ADC/DAC VREFA, ADC0 AIN[1], ADC1 AIN[5] and PTC Y[1].
5 PB04 bidirectional General-purpose I/O on VDDANA with EXTINT[4], ADC1 AIN[6] and PTC Y[10].
6 PB05 bidirectional General-purpose I/O on VDDANA with EXTINT[5], ADC0 AIN[7], ADC1 AIN[6] and PTC Y[11].
7 GNDANA power_in Analog ground reference.
8 VDDANA power_in Analog supply input.
9 PB06 bidirectional General-purpose I/O on VDDANA with EXTINT[6], ADC0 AIN[8], ADC1 AIN[7], PTC Y[12], SDADC AINN[2] and CCL2/IN[6].
10 PB07 bidirectional General-purpose I/O on VDDANA with EXTINT[7], ADC0 AIN[9], PTC Y[13], SDADC AINP[2] and CCL2/IN[7].
11 PB08 bidirectional General-purpose I/O on VDDANA with EXTINT[8], ADC0 AIN[2], ADC1 AIN[4], PTC Y[14], SDADC AINN[1], SERCOM4/PAD[0], TC0/WO[0] and CCL2/IN[8].
12 PB09 bidirectional General-purpose I/O on VDDANA with EXTINT[9], ADC0 AIN[3], ADC1 AIN[5], PTC Y[15], SDADC AINP[1], SERCOM4/PAD[1], TC0/WO[1] and CCL2/OUT[2].
13 PA04 bidirectional General-purpose I/O on VDDANA with EXTINT[4], SDADC VREFB, ADC0 AIN[4], ADC1 AIN[0], PTC Y[2], SERCOM0/PAD[0], TCC0/WO[0] and CCL0/IN[0].
14 PA05 bidirectional General-purpose I/O on VDDANA with EXTINT[5], ADC0 AIN[5], ADC1 AIN[1], PTC Y[3], SERCOM0/PAD[1], TCC0/WO[1] and CCL0/IN[1].
15 PA06 bidirectional General-purpose I/O on VDDANA with EXTINT[6], ADC0 AIN[6], ADC1 AIN[2], PTC Y[4], SDADC AINN[0], SERCOM0/PAD[2], TCC1/WO[0] and CCL0/IN[2].
16 PA07 bidirectional General-purpose I/O on VDDANA with EXTINT[7], ADC0 AIN[7], ADC1 AIN[3], PTC Y[5], SDADC AINP[0], SERCOM0/PAD[3], TCC1/WO[1] and CCL0/OUT[0].
17 PA08 bidirectional General-purpose I/O 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] and CCL1/IN[3].
18 PA09 bidirectional General-purpose I/O 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] and CCL1/IN[4].
19 PA10 bidirectional General-purpose I/O on VDDIO with EXTINT[10], ADC1 AIN[10], PTC X[2]/Y[18], SERCOM0/PAD[2], SERCOM2/PAD[2], TCC1/WO[0], TCC0/WO[2], GCLK_IO[4] and CCL1/IN[5].
20 PA11 bidirectional General-purpose I/O on VDDIO with EXTINT[11], ADC1 AIN[11], PTC X[3]/Y[19], SERCOM0/PAD[3], SERCOM2/PAD[3], TCC1/WO[1], TCC0/WO[3], GCLK_IO[5] and CCL1/OUT[1].
21 VDDIO power_in Digital I/O supply input.
22 GND power_in Ground.
23 PB10 bidirectional General-purpose I/O on VDDIO with EXTINT[10], SERCOM4/PAD[2], TC1/WO[0], TCC0/WO[4], CAN1/TX, GCLK_IO[4] and CCL1/IN[5].
24 PB11 bidirectional General-purpose I/O on VDDIO with EXTINT[11], SERCOM4/PAD[3], TC1/WO[1], TCC0/WO[5], CAN1/RX, GCLK_IO[5] and CCL1/OUT[1].
25 PB12 bidirectional General-purpose I/O on VDDIO with EXTINT[12], PTC X[12]/Y[28], SERCOM4/PAD[0], TC0/WO[0], TCC0/WO[6] and GCLK_IO[6].
26 PB13 bidirectional General-purpose I/O on VDDIO with EXTINT[13], PTC X[13]/Y[29], SERCOM4/PAD[1], TC0/WO[1], TCC0/WO[7] and GCLK_IO[7].
27 PB14 bidirectional General-purpose I/O on VDDIO with EXTINT[14], PTC X[14]/Y[30], SERCOM4/PAD[2], TC1/WO[0], CAN1/TX, GCLK_IO[0] and CCL3/IN[9].
28 PB15 bidirectional General-purpose I/O on VDDIO with EXTINT[15], PTC X[15]/Y[31], SERCOM4/PAD[3], TC1/WO[1], CAN1/RX, GCLK_IO[1] and CCL3/IN[10].
29 PA12 bidirectional General-purpose I/O on VDDIO with EXTINT[12], SERCOM2/PAD[0], SERCOM4/PAD[0], TCC2/WO[0], TCC0/WO[6] and AC CMP[0].
30 PA13 bidirectional General-purpose I/O on VDDIO with EXTINT[13], SERCOM2/PAD[1], SERCOM4/PAD[1], TCC2/WO[1], TCC0/WO[7] and AC CMP[1].
31 PA14 bidirectional General-purpose I/O on VDDIO with EXTINT[14], SERCOM2/PAD[2], SERCOM4/PAD[2], TC4/WO[0], TCC0/WO[4], GCLK_IO[0] and XIN (crystal oscillator input).
32 PA15 bidirectional General-purpose I/O on VDDIO with EXTINT[15], SERCOM2/PAD[3], SERCOM4/PAD[3], TC4/WO[1], TCC0/WO[5], GCLK_IO[1] and XOUT (crystal oscillator output).
33 GND power_in Ground.
34 VDDIO power_in Digital I/O supply input.
35 PA16 bidirectional General-purpose I/O 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] and CCL0/IN[0].
36 PA17 bidirectional General-purpose I/O 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] and CCL0/IN[1].
37 PA18 bidirectional General-purpose I/O 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] and CCL0/IN[2].
38 PA19 bidirectional General-purpose I/O 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] and CCL0/OUT[0].
39 PB16 bidirectional General-purpose I/O on VDDIO with EXTINT[0], SERCOM5/PAD[0], TC2/WO[0], TCC0/WO[4], GCLK_IO[2] and CCL3/IN[11].
40 PB17 bidirectional General-purpose I/O on VDDIO with EXTINT[1], SERCOM5/PAD[1], TC2/WO[1], TCC0/WO[5], GCLK_IO[3] and CCL3/OUT[3].
41 PA20 bidirectional General-purpose I/O on VDDIO with EXTINT[4], PTC X[8]/Y[24], SERCOM5/PAD[2], SERCOM3/PAD[2], TC3/WO[0], TCC0/WO[6] and GCLK_IO[4].
42 PA21 bidirectional General-purpose I/O on VDDIO with EXTINT[5], PTC X[9]/Y[25], SERCOM5/PAD[3], SERCOM3/PAD[3], TC3/WO[1], TCC0/WO[7] and GCLK_IO[5].
43 PA22 bidirectional General-purpose I/O 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] and CCL2/IN[6].
44 PA23 bidirectional General-purpose I/O 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] and CCL2/IN[7].
45 PA24 bidirectional General-purpose I/O on VDDIO with EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC1/WO[0], TCC1/WO[2], CAN0/TX, AC CMP[2] and CCL2/IN[8].
46 PA25 bidirectional General-purpose I/O on VDDIO with EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC1/WO[1], TCC1/WO[3], CAN0/RX, AC CMP[3] and CCL2/OUT[2].
47 GND power_in Ground.
48 VDDIO power_in Digital I/O supply input.
49 PB22 bidirectional General-purpose I/O on VDDIO with EXTINT[6], SERCOM5/PAD[2], TC3/WO[0], CAN0/TX, GCLK_IO[0] and CCL0/IN[0].
50 PB23 bidirectional General-purpose I/O on VDDIO with EXTINT[7], SERCOM5/PAD[3], TC3/WO[1], CAN0/RX, GCLK_IO[1] and CCL0/OUT[0].
51 PA27 bidirectional General-purpose I/O on VDDIN with EXTINT[15] and GCLK_IO[0].
52 RESET input External reset input, active low.
53 PA28 bidirectional General-purpose I/O on VDDIN with EXTINT[8] and GCLK_IO[0].
54 GND power_in Ground.
55 VDDCORE power_out Regulated output supply for the core.
56 VDDIN power_in Input supply for the internal regulator and GPIO cluster 1.
57 PA30 bidirectional General-purpose I/O on VDDIN with EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0], SWCLK serial wire debug clock, GCLK_IO[0] and CCL1/IN[3].
58 PA31 bidirectional General-purpose I/O on VDDIN with EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1], SWDIO serial wire debug data and CCL1/OUT[1].
59 PB30 bidirectional General-purpose I/O on VDDIN with EXTINT[14], SERCOM5/PAD[0], TCC0/WO[0], TCC1/WO[2] and AC CMP[2].
60 PB31 bidirectional General-purpose I/O on VDDIN with EXTINT[15], SERCOM5/PAD[1], TCC0/WO[1], TCC1/WO[3] and AC CMP[3].
61 PB00 bidirectional General-purpose I/O on VDDANA with EXTINT[0], ADC0 AIN[0], PTC Y[6], SERCOM5/PAD[2], TC3/WO[0] and CCL0/IN[1].
62 PB01 bidirectional General-purpose I/O on VDDANA with EXTINT[1], ADC0 AIN[1], PTC Y[7], SERCOM5/PAD[3], TC3/WO[1] and CCL0/IN[2].
63 PB02 bidirectional General-purpose I/O on VDDANA with EXTINT[2], ADC0 AIN[2], PTC Y[8], SERCOM5/PAD[0], TC2/WO[0] and CCL0/OUT[0].
64 PB03 bidirectional General-purpose I/O on VDDANA with EXTINT[3], ADC0 AIN[3], PTC Y[9], SERCOM5/PAD[1] and TC2/WO[1].

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
VDDIN supply voltage VDDIN 2.7 5.5 V Powers I/O lines and OSC48M, TOSC and internal regulator; same voltage on VDDIN and VDDANA 38
VDDIO supply voltage VDDIO 2.7 5.5 V Powers I/O lines and XOSC; must be less than or equal to VDDIN 38
VDDANA supply voltage VDDANA 2.7 5.5 V Powers I/O lines and ADC, AC, DAC, PTC, SDADC, OSCULP32K, OSC32K, XOSC32K 38
VDDCORE internal regulated voltage VDDCORE 1.2 V Internal regulated voltage output 38
Operating temperature -40 105 °C Package grade N: -40 - 105°C Matte Sn Plating 18

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing PC 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 1198
contacts tin 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. 987

CAD (KiCad official)

  • Symbol: ATSAMC21J18A-ANT
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: atsamc21j18a-ant-etched.step / atsamc21j18a-ant-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atsamc21j18a-ant.step / atsamc21j18a-ant.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (1206 pp, sha256 5991eaad10c5cd35, retrieved 2026-11-13, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF