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ATSAMD51J20A-AUT

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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.

componentsingle chip microcomputer-microcontrolleratsamd51j20a-autfactory-2.0.0extractor-text

Verified ATSAMD51J20A-AUT

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: ATSAMD51J20A-AUT · TQFP-64(10x10) · 64 pins
  • ✓copper: 64 copper pads, none touching another net
  • ✓datasheet: all 64 pin names found in the 1934-page datasheet
  • ✓distributor: lcsc C619371, digikey ATSAMD51J20A-AUTTR-ND, mouser 556-ATSAMD51J20AAUT
  • ✓family: TQFP-64_10x10mm_P0.5mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-j9yuba9w/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.1886)
  • ✓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✓ atsamd51j20a-aut.kicad_sym✓ atsamd51j20a-aut.kicad_mod✓ atsamd51j20a-aut.step
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Contents

README

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ATSAMD51J20A-AUT

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

ATSAMD51J20A-AUT 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 PA00 with EXTINT[0], SERCOM1 PAD[0] and TC2 WO[0], also the XIN32 pin of the 32 kHz crystal oscillator.
2 PA01 bidirectional General-purpose I/O PA01 with EXTINT[1], SERCOM1 PAD[1] and TC2 WO[1], also the XOUT32 pin of the 32 kHz crystal oscillator.
3 PA02 bidirectional General-purpose I/O PA02 with EXTINT[2], ADC0 AIN[0] and DAC VOUT[0]; it is a recommended steady signal for XOSC32K jitter minimization.
4 PA03 bidirectional General-purpose I/O PA03 with EXTINT[3], ANAREF VREFA, ADC0 AIN[1] and PTC X0/Y0; it is a recommended steady signal for XOSC32K jitter minimization.
5 PB04 bidirectional General-purpose I/O PB04 with EXTINT[4], ADC1 AIN[6] and PTC X22/Y22.
6 PB05 bidirectional General-purpose I/O PB05 with EXTINT[5], ADC1 AIN[7] and PTC X23/Y23.
7 GNDANA power_in Analog ground.
8 VDDANA power_in Analog supply voltage.
9 PB06 bidirectional General-purpose I/O PB06 with EXTINT[6], ADC1 AIN[8], PTC X24/Y24 and CCL IN[6].
10 PB07 bidirectional General-purpose I/O PB07 with EXTINT[7], ADC1 AIN[9], PTC X25/Y25 and CCL IN[7].
11 PB08 bidirectional General-purpose I/O PB08 with EXTINT[8], ADC0 AIN[2], ADC1 AIN[0], PTC X1/Y1, SERCOM4 PAD[0] and TC4 WO[0].
12 PB09 bidirectional General-purpose I/O PB09 with EXTINT[9], ADC0 AIN[3], ADC1 AIN[1], PTC X2/Y2, SERCOM4 PAD[1] and TC4 WO[1].
13 PA04 bidirectional General-purpose I/O PA04 with EXTINT[4], ANAREF VREFB, ADC0 AIN[4], AC AIN[0], PTC X3/Y3 and SERCOM0 PAD[0].
14 PA05 bidirectional General-purpose I/O PA05 with EXTINT[5], ADC0 AIN[5], AC AIN[1], DAC VOUT[1], SERCOM0 PAD[1] and TC0 WO[1].
15 PA06 bidirectional General-purpose I/O PA06 with EXTINT[6], ANAREF VREFC, ADC0 AIN[6], AC AIN[2], PTC X4/Y4 and SERCOM0 PAD[2].
16 PA07 bidirectional General-purpose I/O PA07 with EXTINT[7], ADC0 AIN[7], AC AIN[3], PTC X5/Y5 and SERCOM0 PAD[3].
17 PA08 bidirectional High-sink general-purpose I/O PA08 supplied by VDDIOB with NMI, ADC0 AIN[8], ADC1 AIN[2], QSPI DATA[0] and SERCOM0/2 pads; supports I2C.
18 PA09 bidirectional High-sink general-purpose I/O PA09 supplied by VDDIOB with EXTINT[9], ADC0 AIN[9], ADC1 AIN[3], QSPI DATA[1] and SERCOM0/2 pads; supports I2C.
19 PA10 bidirectional General-purpose I/O PA10 with EXTINT[10], ADC0 AIN[10], QSPI DATA[2], SERCOM0/2 PAD[2] and GCLK_IO[4].
20 PA11 bidirectional General-purpose I/O PA11 with EXTINT[11], ADC0 AIN[11], QSPI DATA[3], SERCOM0/2 PAD[3] and GCLK_IO[5].
21 VDDIOB power_in Digital I/O supply for the cluster of pins PA08-PA11.
22 GND power_in Ground.
23 PB10 bidirectional General-purpose I/O PB10 with EXTINT[10], QSPI SCK, SERCOM4 PAD[2], TC5 WO[0] and GCLK_IO[4].
24 PB11 bidirectional General-purpose I/O PB11 with EXTINT[11], QSPI CS, SERCOM4 PAD[3], TC5 WO[1] and GCLK_IO[5].
25 PB12 bidirectional General-purpose I/O PB12 with EXTINT[12], PTC X26/Y26, SERCOM4 PAD[0], CAN1 TX and GCLK_IO[6].
26 PB13 bidirectional General-purpose I/O PB13 with EXTINT[13], PTC X27/Y27, SERCOM4 PAD[1], CAN1 RX and GCLK_IO[7].
27 PB14 bidirectional General-purpose I/O PB14 with EXTINT[14], PTC X28/Y28, SERCOM4 PAD[2], CAN1 TX and GCLK_IO[0].
28 PB15 bidirectional General-purpose I/O PB15 with EXTINT[15], PTC X29/Y29, SERCOM4 PAD[3], CAN1 RX and GCLK_IO[1].
29 PA12 bidirectional High-sink general-purpose I/O PA12 supplied by VDDIO; supports I2C.
30 PA13 bidirectional High-sink general-purpose I/O PA13 supplied by VDDIO; supports I2C.
31 PA14 bidirectional General-purpose I/O PA14, also the XIN pin of crystal oscillator XOSC0 (supply VDDIO).
32 PA15 bidirectional General-purpose I/O PA15, also the XOUT pin of crystal oscillator XOSC0 (supply VDDIO).
33 GND power_in Ground.
34 VDDIO power_in Digital I/O supply.
35 PA16 bidirectional High-sink general-purpose I/O PA16 supplied by VDDIO; supports I2C; GRXDV is available here on the 64-pin package.
36 PA17 bidirectional High-sink general-purpose I/O PA17 supplied by VDDIO; supports I2C.
37 PA18 bidirectional General-purpose I/O PA18 supplied by VDDIO.
38 PA19 bidirectional General-purpose I/O PA19 supplied by VDDIO.
39 PB16 bidirectional General-purpose I/O PB16 supplied by VDDIO.
40 PB17 bidirectional General-purpose I/O PB17 supplied by VDDIO.
41 PA20 bidirectional General-purpose I/O PA20 with EXTINT[4], PTC X14/Y14, SERCOM5 PAD[2] and TC7 WO[0].
42 PA21 bidirectional General-purpose I/O PA21 with EXTINT[5], PTC X15/Y15, SERCOM5 PAD[3] and TC7 WO[1].
43 PA22 bidirectional High-sink general-purpose I/O PA22 with EXTINT[6], PTC X16/Y16, SERCOM3 PAD[0] and CAN0 TX; supports I2C.
44 PA23 bidirectional High-sink general-purpose I/O PA23 with EXTINT[7], PTC X17/Y17, SERCOM3 PAD[1], USB SOF_1KHZ and CAN0 RX; supports I2C.
45 PA24 bidirectional General-purpose I/O PA24 with EXTINT[8], USB DM and CAN0 TX.
46 PA25 bidirectional General-purpose I/O PA25 with EXTINT[9], USB DP and CAN0 RX.
47 GND power_in Ground.
48 VDDIO power_in Digital I/O supply.
49 PB22 bidirectional General-purpose I/O PB22 with EXTINT[6], USB SOF_1KHZ and GCLK_IO[0], also the XIN pin of crystal oscillator XOSC1.
50 PB23 bidirectional General-purpose I/O PB23 with EXTINT[7] and GCLK_IO[1], also the XOUT pin of crystal oscillator XOSC1.
51 PA27 bidirectional General-purpose I/O PA27 with EXTINT[11], PTC X18/Y18 and GCLK_IO[1].
52 RESETN input Active-low external reset input.
53 VDDCORE power_out Regulated core supply pin (regulated input/output supply).
54 GND power_in Ground.
55 VSW power_out Switching output of the embedded buck regulator.
56 VDDIO power_in Digital I/O supply.
57 PA30 bidirectional General-purpose I/O PA30, also the SWCLK serial wire debug clock pin (supply VDDIO).
58 PA31 bidirectional General-purpose I/O PA31, also the SWDIO serial wire debug data pin (supply VDDIO).
59 PB30 bidirectional General-purpose I/O PB30 with EXTINT[14], SERCOM7 PAD[0] and SWO trace output.
60 PB31 bidirectional General-purpose I/O PB31 with EXTINT[15], SERCOM7 PAD[1] and TC0 WO[1].
61 PB00 bidirectional General-purpose I/O PB00 with EXTINT[0], ADC0 AIN[12], PTC X30/Y30 and RTC tamper IN0; recommended steady signal for XOSC32K jitter minimization.
62 PB01 bidirectional General-purpose I/O PB01 with EXTINT[1], ADC0 AIN[13], PTC X31/Y31, SUPC OUT0 and RTC tamper OUT.
63 PB02 bidirectional General-purpose I/O PB02 with EXTINT[2], ADC0 AIN[14], PTC X20/Y20, SUPC OUT1 and RTC tamper IN1.
64 PB03 bidirectional General-purpose I/O PB03 with EXTINT[3], ADC0 AIN[15], PTC X21/Y21 and SERCOM5 PAD[1].

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package TQFP-64(10x10)
Category Single Chip Microcomputer/Microcontroller
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
Operating supply voltage VDD 1.71 3.63 V VDDIO/VDDANA, single supply 1
Operating temperature -40 85 °C Grade U, 1.71V to 3.63V 1
VDDIOB supply voltage VDDIOB 1.71 3.63 V must be equal to or lower than VDDIO 46
VBAT supply voltage VBAT 1.71 3.63 V 46
VDDCORE voltage VDDCORE 1.2 V internal regulator output, typical 46

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 pet nu1RBase nu1 I Crypto RAM u2RLength Base of R Base of R value filled repetitively with u4FillValue 1316
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. 1697

CAD (KiCad official)

  • Symbol: ATSAMD51J20A-AUT
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: atsamd51j20a-aut-etched.step / atsamd51j20a-aut-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atsamd51j20a-aut.step / atsamd51j20a-aut.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (1934 pp, sha256 6f02ccc3e69325ab, 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