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ATSAMD51J19A-MFT

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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), QFN-64-EP(9x9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ATSAMD51J19A-MFT

Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · QFN-64-EP(9x9)

ATSAMD51J19A-MFT from Microchip Tech, in a QFN-64-EP(9x9). 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 with EXTINT[0], SERCOM1/PAD[0] and TC2/WO[0]; also the XIN32 pin of XOSC32K.
2 PA01 bidirectional General-purpose I/O with EXTINT[1], SERCOM1/PAD[1] and TC2/WO[1]; also the XOUT32 pin of XOSC32K.
3 PA02 bidirectional General-purpose I/O with EXTINT[2], ADC0/AIN[0] and DAC/VOUT[0]; RTC tamper input IN2.
4 PA03 bidirectional General-purpose I/O with EXTINT[3], ANAREF/VREFA, ADC0/AIN[1] and PTC X0/Y0.
5 PB04 bidirectional General-purpose I/O with EXTINT[4], ADC1/AIN[6] and PTC X22/Y22.
6 PB05 bidirectional General-purpose I/O with EXTINT[5], ADC1/AIN[7] and PTC X23/Y23.
7 GNDANA power_in Analog ground.
8 VDDANA power_in Analog supply.
9 PB06 bidirectional General-purpose I/O with EXTINT[6], ADC1/AIN[8], PTC X24/Y24 and CCL/IN[6].
10 PB07 bidirectional General-purpose I/O with EXTINT[7], ADC1/AIN[9], PTC X25/Y25 and CCL/IN[7].
11 PB08 bidirectional General-purpose I/O with EXTINT[8], ADC0/AIN[2], ADC1/AIN[0], PTC X1/Y1, SERCOM4/PAD[0], TC4/WO[0] and CCL/IN[8].
12 PB09 bidirectional General-purpose I/O with EXTINT[9], ADC0/AIN[3], ADC1/AIN[1], PTC X2/Y2, SERCOM4/PAD[1], TC4/WO[1] and CCL/OUT[2].
13 PA04 bidirectional General-purpose I/O with EXTINT[4], ANAREF/VREFB, ADC0/AIN[4], AC/AIN[0], PTC X3/Y3, SERCOM0/PAD[0], TC0/WO[0] and CCL/IN[0].
14 PA05 bidirectional General-purpose I/O with EXTINT[5], ADC0/AIN[5], AC/AIN[1], DAC/VOUT[1], SERCOM0/PAD[1], TC0/WO[1] and CCL/IN[1].
15 PA06 bidirectional General-purpose I/O with EXTINT[6], ANAREF/VREFC, ADC0/AIN[6], AC/AIN[2], PTC X4/Y4, SERCOM0/PAD[2], TC1/WO[0], SDHC0/SDCD and CCL/IN[2].
16 PA07 bidirectional General-purpose I/O with EXTINT[7], ADC0/AIN[7], AC/AIN[3], PTC X5/Y5, SERCOM0/PAD[3], TC1/WO[1], SDHC0/SDWP and CCL/OUT[0].
17 PA08 bidirectional High-sink I/O (VDDIOB, I2C-capable) with NMI, ADC0/AIN[8], ADC1/AIN[2], PTC X6/Y6, SERCOM0/PAD[0], SERCOM2/PAD[1], TC0/WO[0], TCC0/WO[0], TCC1/WO[4], QSPI/DATA[0] and CCL/IN[3].
18 PA09 bidirectional High-sink I/O (VDDIOB, I2C-capable) with EXTINT[9], ADC0/AIN[9], ADC1/AIN[3], PTC X7/Y7, SERCOM0/PAD[1], SERCOM2/PAD[0], TC0/WO[1], TCC0/WO[1], TCC1/WO[5], QSPI/DATA[1] and CCL/IN[4].
19 PA10 bidirectional General-purpose I/O with EXTINT[10], ADC0/AIN[10], PTC X8/Y8, SERCOM0/PAD[2], SERCOM2/PAD[2], TC1/WO[0], TCC0/WO[2], TCC1/WO[6], QSPI/DATA[2], GCLK/IO[4] and CCL/IN[5].
20 PA11 bidirectional General-purpose I/O with EXTINT[11], ADC0/AIN[11], PTC X9/Y9, SERCOM0/PAD[3], SERCOM2/PAD[3], TC1/WO[1], TCC0/WO[3], TCC1/WO[7], QSPI/DATA[3], GCLK/IO[5] and CCL/OUT[1].
21 VDDIOB power_in I/O supply for the pin cluster including PA08 and PA09.
22 GND power_in Ground.
23 PB10 bidirectional General-purpose I/O with EXTINT[10], SERCOM4/PAD[2], TC5/WO[0], TCC0/WO[4], TCC1/WO[0], QSPI/SCK, GCLK/IO[4] and CCL/IN[11].
24 PB11 bidirectional General-purpose I/O with EXTINT[11], SERCOM4/PAD[3], TC5/WO[1], TCC0/WO[5], TCC1/WO[1], QSPI/CS, GCLK/IO[5] and CCL/OUT[1].
25 PB12 bidirectional General-purpose I/O with EXTINT[12], PTC X26/Y26, SERCOM4/PAD[0], TC4/WO[0], TCC3/WO[0], TCC0/WO[0] and GCLK/IO[6].
26 PB13 bidirectional General-purpose I/O with EXTINT[13], PTC X27/Y27, SERCOM4/PAD[1], TC4/WO[1], TCC3/WO[1], TCC0/WO[1] and GCLK/IO[7].
27 PB14 bidirectional General-purpose I/O with EXTINT[14], PTC X28/Y28, SERCOM4/PAD[2], TC5/WO[0], TCC4/WO[0], TCC0/WO[2], GCLK/IO[0] and CCL/IN[9].
28 PB15 bidirectional General-purpose I/O with EXTINT[15], PTC X29/Y29, SERCOM4/PAD[3], TC5/WO[1], TCC4/WO[1], TCC0/WO[3], GCLK/IO[1] and CCL/IN[10].
29 PA12 bidirectional High-sink, I2C-capable general-purpose I/O powered from VDDIO.
30 PA13 bidirectional High-sink, I2C-capable general-purpose I/O powered from VDDIO.
31 PA14 bidirectional General-purpose I/O (VDDIO) that is also the XIN pin of XOSC0.
32 PA15 bidirectional General-purpose I/O (VDDIO) that is also the XOUT pin of XOSC0.
33 GND power_in Ground.
34 VDDIO power_in Digital I/O supply.
35 PA16 bidirectional High-sink, I2C-capable general-purpose I/O powered from VDDIO; GRXDV is available on PA16 in the 64-pin package.
36 PA17 bidirectional High-sink, I2C-capable general-purpose I/O powered from VDDIO.
37 PA18 bidirectional General-purpose I/O powered from VDDIO.
38 PA19 bidirectional General-purpose I/O powered from VDDIO.
39 PB16 bidirectional General-purpose I/O powered from VDDIO.
40 PB17 bidirectional General-purpose I/O powered from VDDIO.
41 PA20 bidirectional General-purpose I/O with EXTINT[4], PTC X14/Y14, SERCOM5/PAD[2], SERCOM3/PAD[2], TC7/WO[0], TCC1/WO[4] and TCC0/WO[0].
42 PA21 bidirectional General-purpose I/O with EXTINT[5], PTC X15/Y15, SERCOM5/PAD[3], SERCOM3/PAD[3], TC7/WO[1], TCC1/WO[5] and TCC0/WO[1].
43 PA22 bidirectional High-sink, I2C-capable I/O with EXTINT[6], PTC X16/Y16, SERCOM3/PAD[0], SERCOM5/PAD[1], TC4/WO[0], TCC1/WO[6], TCC0/WO[2] and CCL/IN[6].
44 PA23 bidirectional High-sink, I2C-capable I/O with EXTINT[7], PTC X17/Y17, SERCOM3/PAD[1], SERCOM5/PAD[0], TC4/WO[1], TCC1/WO[7], TCC0/WO[3], USB/SOF_1KHZ and CCL/IN[7].
45 PA24 bidirectional General-purpose I/O with EXTINT[8], SERCOM3/PAD[2], SERCOM5/PAD[2], TC5/WO[0], TCC2/WO[2], PDEC/PDEC[0], USB/DM and CCL/IN[8].
46 PA25 bidirectional General-purpose I/O with EXTINT[9], SERCOM3/PAD[3], SERCOM5/PAD[3], TC5/WO[1], PDEC/PDEC[1], USB/DP and CCL/OUT[2].
47 GND power_in Ground.
48 VDDIO power_in Digital I/O supply.
49 PB22 bidirectional General-purpose I/O with EXTINT[6], SERCOM1/PAD[2], SERCOM5/PAD[2], TC7/WO[0], PDEC/PDEC[2], USB/SOF_1KHZ, GCLK/IO[0] and CCL/IN[0]; also the XIN pin of XOSC1.
50 PB23 bidirectional General-purpose I/O with EXTINT[7], SERCOM1/PAD[3], SERCOM5/PAD[3], TC7/WO[1], PDEC/PDEC[0], GCLK/IO[1] and CCL/OUT[0]; also the XOUT pin of XOSC1.
51 PA27 bidirectional General-purpose I/O with EXTINT[11], PTC X18/Y18 and GCLK/IO[1].
52 RESETN input Active-low external reset input.
53 VDDCORE power_in Regulated input/output core 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 (VDDIO) with EXTINT[14], PTC X19/Y19, SERCOM7/PAD[2], SERCOM1/PAD[2], TC6/WO[0], TCC2/WO[0], GCLK/IO[0] and CCL/IN[3]; also the SWCLK debug clock.
58 PA31 bidirectional General-purpose I/O (VDDIO) with EXTINT[15], SERCOM7/PAD[3], SERCOM1/PAD[3], TC6/WO[1], TCC2/WO[1] and CCL/OUT[1]; also the SWDIO debug data line.
59 PB30 bidirectional General-purpose I/O with EXTINT[14], SERCOM7/PAD[0], SERCOM5/PAD[1], TC0/WO[0], TCC4/WO[0], TCC0/WO[6] and the SWO trace output.
60 PB31 bidirectional General-purpose I/O with EXTINT[15], SERCOM7/PAD[1], SERCOM5/PAD[0], TC0/WO[1], TCC4/WO[1] and TCC0/WO[7].
61 PB00 bidirectional General-purpose I/O with EXTINT[0], ADC0/AIN[12], PTC X30/Y30, SERCOM5/PAD[2], TC7/WO[0] and CCL/IN[1]; RTC tamper input IN0.
62 PB01 bidirectional General-purpose I/O with EXTINT[1], ADC0/AIN[13], PTC X31/Y31, SERCOM5/PAD[3], TC7/WO[1] and CCL/IN[2]; RTC OUT and SUPC OUT0.
63 PB02 bidirectional General-purpose I/O with EXTINT[2], ADC0/AIN[14], PTC X20/Y20, SERCOM5/PAD[0], TC6/WO[0], TCC2/WO[2] and CCL/OUT[0]; RTC tamper input IN1 and SUPC OUT1.
64 PB03 bidirectional General-purpose I/O with EXTINT[3], ADC0/AIN[15], PTC X21/Y21, SERCOM5/PAD[1] and TC6/WO[1].
65 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package QFN-64-EP(9x9)
Category Single Chip Microcomputer/Microcontroller
Pins 65

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 -40°C to +125°C, DC to 100 MHz 1
VDDIO supply voltage VDDIO 1.71 3.63 V 46
VDDIOB supply voltage VDDIOB 1.71 3.63 V 46
VDDANA supply voltage VDDANA 1.71 3.63 V 46
VBAT supply voltage VBAT 1.71 3.63 V 46
VDDCORE voltage VDDCORE 1.2 V Internal regulator output 46
Operating temperature -40 125 °C 1.71V to 3.63V 1

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: ATSAMD51J19A-MFT
  • Footprint: Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP6x6mm
  • 3D model: QFN-64-EP(9x9) (KiCad packages3D, STEP)
  • 3D model files: atsamd51j19a-mft-etched.step / atsamd51j19a-mft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atsamd51j19a-mft.step / atsamd51j19a-mft.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 2026-10-26, 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