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ATSAME51J18A-AU

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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-microcontrolleratsame51j18a-aufactory-2.0.0extractor-text

Verified ATSAME51J18A-AU

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: ATSAME51J18A-AU · 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 C619218, digikey ATSAME51J18A-AU-ND, mouser 556-ATSAME51J18AAU
  • ✓family: TQFP-64_10x10mm_P0.5mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-jzlyxkwx/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 76 kB, viewers/symbol.html 41 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ atsame51j18a-au.kicad_sym✓ atsame51j18a-au.kicad_mod✓ atsame51j18a-au.step
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Contents

README

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ATSAME51J18A-AU

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

ATSAME51J18A-AU 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] and SERCOM1 PAD[0]; also the XIN32 pin of XOSC32K.
2 PA01 bidirectional General purpose I/O PA01 with EXTINT[1] and SERCOM1 PAD[1]; also the XOUT32 pin of XOSC32K.
3 PA02 bidirectional General purpose I/O PA02 with EXTINT[2], ADC0 AIN[0] and DAC VOUT[0]; also RTC tamper input IN2.
4 PA03 bidirectional General purpose I/O PA03 with EXTINT[3], ADC0 AIN[1] and ANAREF VREFA.
5 PB04 bidirectional General purpose I/O PB04 with EXTINT[4] and ADC1 AIN[6].
6 PB05 bidirectional General purpose I/O PB05 with EXTINT[5] and ADC1 AIN[7].
7 GNDANA power_in Analog ground.
8 VDDANA power_in Analog supply.
9 PB06 bidirectional General purpose I/O PB06 with EXTINT[6] and ADC1 AIN[8].
10 PB07 bidirectional General purpose I/O PB07 with EXTINT[7] and ADC1 AIN[9].
11 PB08 bidirectional General purpose I/O PB08 with EXTINT[8], ADC0 AIN[2] and ADC1 AIN[0].
12 PB09 bidirectional General purpose I/O PB09 with EXTINT[9], ADC0 AIN[3] and ADC1 AIN[1].
13 PA04 bidirectional General purpose I/O PA04 with EXTINT[4], ADC0 AIN[4] and ANAREF VREFB.
14 PA05 bidirectional General purpose I/O PA05 with EXTINT[5], ADC0 AIN[5] and DAC VOUT[1].
15 PA06 bidirectional General purpose I/O PA06 with EXTINT[6], ADC0 AIN[6] and ANAREF VREFC.
16 PA07 bidirectional General purpose I/O PA07 with EXTINT[7] and ADC0 AIN[7].
17 PA08 bidirectional General purpose I/O PA08 powered from VDDIOB, with NMI input, I2C support and high sink capability.
18 PA09 bidirectional General purpose I/O PA09 powered from VDDIOB, with EXTINT[9], I2C support and high sink capability.
19 PA10 bidirectional General purpose I/O PA10 with EXTINT[10] and ADC0 AIN[10], powered from VDDIOB.
20 PA11 bidirectional General purpose I/O PA11 with EXTINT[11] and ADC0 AIN[11], powered from VDDIOB.
21 VDDIOB power_in I/O supply for the PA08 to PA11 pin cluster.
22 GND power_in Ground.
23 PB10 bidirectional General purpose I/O PB10 with EXTINT[10] and QSPI SCK.
24 PB11 bidirectional General purpose I/O PB11 with EXTINT[11] and QSPI CS.
25 PB12 bidirectional General purpose I/O PB12 with EXTINT[12] and CAN1 TX.
26 PB13 bidirectional General purpose I/O PB13 with EXTINT[13] and CAN1 RX.
27 PB14 bidirectional General purpose I/O PB14 with EXTINT[14] and CAN1 TX.
28 PB15 bidirectional General purpose I/O PB15 with EXTINT[15] and CAN1 RX.
29 PA12 bidirectional General purpose I/O PA12 with I2C support and high sink capability.
30 PA13 bidirectional General purpose I/O PA13 with I2C support and high sink capability.
31 PA14 bidirectional General purpose I/O PA14 with EXTINT[14]; also the XIN pin of XOSC0.
32 PA15 bidirectional General purpose I/O PA15 with EXTINT[15]; also the XOUT pin of XOSC0.
33 GND power_in Ground.
34 VDDIO power_in Digital I/O supply.
35 PA16 bidirectional General purpose I/O PA16 with I2C support and high sink capability; GRXDV is available here on the 64-pin package.
36 PA17 bidirectional General purpose I/O PA17 with I2C support and high sink capability.
37 PA18 bidirectional General purpose I/O PA18.
38 PA19 bidirectional General purpose I/O PA19.
39 PB16 bidirectional General purpose I/O PB16.
40 PB17 bidirectional General purpose I/O PB17.
41 PA20 bidirectional General purpose I/O PA20 with EXTINT[4].
42 PA21 bidirectional General purpose I/O PA21 with EXTINT[5].
43 PA22 bidirectional General purpose I/O PA22 with EXTINT[6], I2C support and high sink capability.
44 PA23 bidirectional General purpose I/O PA23 with EXTINT[7], I2C support, high sink capability and USB SOF 1 kHz output.
45 PA24 bidirectional General purpose I/O PA24 with EXTINT[8] and USB DM (D-) data line.
46 PA25 bidirectional General purpose I/O PA25 with EXTINT[9] and USB DP (D+) data line.
47 GND power_in Ground.
48 VDDIO power_in Digital I/O supply.
49 PB22 bidirectional General purpose I/O PB22 with EXTINT[6]; also the XIN pin of XOSC1.
50 PB23 bidirectional General purpose I/O PB23 with EXTINT[7]; also the XOUT pin of XOSC1.
51 PA27 bidirectional General purpose I/O PA27 with EXTINT[11].
52 RESETN input External reset input, active low.
53 VDDCORE power_in Core supply pin; the WLCSP legend labels it as a regulated input/output supply.
54 GND power_in Ground.
55 VSW passive Switching regulator (buck) output pin; the datasheet text provided gives no further description.
56 VDDIO power_in Digital I/O supply.
57 PA30 bidirectional General purpose I/O PA30 with EXTINT[14]; also the SWCLK serial wire debug clock.
58 PA31 bidirectional General purpose I/O PA31 with EXTINT[15]; also the SWDIO serial wire debug data.
59 PB30 bidirectional General purpose I/O PB30 with EXTINT[14]; also the SWO output in non-single-wire debug modes.
60 PB31 bidirectional General purpose I/O PB31 with EXTINT[15].
61 PB00 bidirectional General purpose I/O PB00 with EXTINT[0] and ADC0 AIN[12]; also RTC tamper input IN0.
62 PB01 bidirectional General purpose I/O PB01 with EXTINT[1] and ADC0 AIN[13]; also RTC OUT and SUPC OUT0.
63 PB02 bidirectional General purpose I/O PB02 with EXTINT[2] and ADC0 AIN[14]; also RTC tamper input IN1 and SUPC OUT1.
64 PB03 bidirectional General purpose I/O PB03 with EXTINT[3] and ADC0 AIN[15].

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
Supply voltage (VDDIO/VDDANA) VDD 1.71 3.63 V 1.71V to 3.63V, -40°C to +85°C, DC to 120 MHz 1
Operating temperature -40 85 °C Package grade U (Industrial) 19
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 Powers the Automatic Power Switch 46
VDDCORE voltage VDDCORE 1.2 V Internal regulator output, 1.2V 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: ATSAME51J18A-AU
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: atsame51j18a-au-etched.step / atsame51j18a-au-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atsame51j18a-au.step / atsame51j18a-au.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