component

ATSAMD21J17D-AFT

Public Made by Adom

by adom

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-microcontrolleratsamd21j17d-aftfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

ATSAMD21J17D-AFT

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

ATSAMD21J17D-AFT 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], XIN32 (32kHz crystal input), SERCOM1/PAD[0] and TCC2/WO[0] functions.
2 PA01 bidirectional General-purpose I/O on VDDANA with EXTINT[1], XOUT32 (32kHz crystal output), SERCOM1/PAD[1] and TCC2/WO[1] functions.
3 PA02 bidirectional General-purpose I/O on VDDANA with EXTINT[2], ADC AIN[0], PTC Y[0], DAC VOUT and TCC3/WO[0] functions.
4 PA03 bidirectional General-purpose I/O on VDDANA with EXTINT[3], ADC/DAC VREFA, ADC AIN[1], PTC Y[1] and TCC3/WO[1] functions.
5 PB04 bidirectional General-purpose I/O on VDDANA with EXTINT[4], ADC AIN[12] and PTC Y[10] functions.
6 PB05 bidirectional General-purpose I/O on VDDANA with EXTINT[5], ADC AIN[13] and PTC Y[11] functions.
7 GNDANA power_in Ground for the analog power domain.
8 VDDANA power_in Analog supply voltage, 1.62V - 3.63V, with 100nF and 10uF decoupling recommended.
9 PB06 bidirectional General-purpose I/O on VDDANA with EXTINT[6], ADC AIN[14] and PTC Y[12] functions.
10 PB07 bidirectional General-purpose I/O on VDDANA with EXTINT[7], ADC AIN[15] and PTC Y[13] functions.
11 PB08 bidirectional General-purpose I/O on VDDANA with EXTINT[8], ADC AIN[2], PTC Y[14], SERCOM4/PAD[0], TC4/WO[0] and TCC3/WO[6] functions.
12 PB09 bidirectional General-purpose I/O on VDDANA with EXTINT[9], ADC AIN[3], PTC Y[15], SERCOM4/PAD[1], TC4/WO[1] and TCC3/WO[7] functions.
13 PA04 bidirectional General-purpose I/O on VDDANA with EXTINT[4], ADC/VREFB, ADC AIN[4], AC AIN[0], PTC Y[2], SERCOM0/PAD[0] and TCC0/WO[0] functions.
14 PA05 bidirectional General-purpose I/O on VDDANA with EXTINT[5], ADC AIN[5], AC AIN[1], PTC Y[3], SERCOM0/PAD[1] and TCC0/WO[1] functions.
15 PA06 bidirectional General-purpose I/O on VDDANA with EXTINT[6], ADC AIN[6], AC AIN[2], PTC Y[4], SERCOM0/PAD[2] and TCC1/WO[0] functions.
16 PA07 bidirectional General-purpose I/O on VDDANA with EXTINT[7], ADC AIN[7], AC AIN[3], PTC Y[5], SERCOM0/PAD[3], TCC1/WO[1] and I2S/SD[0] functions.
17 PA08 bidirectional General-purpose I/O on VDDIO with NMI, ADC AIN[16], PTC X[0], SERCOM0/PAD[0], SERCOM2/PAD[0], TCC0/WO[0] and I2S/SD[1] functions.
18 PA09 bidirectional General-purpose I/O on VDDIO with EXTINT[9], ADC AIN[17], PTC X[1], SERCOM0/PAD[1], SERCOM2/PAD[1], TCC0/WO[1] and I2S/MCK[0] functions.
19 PA10 bidirectional General-purpose I/O on VDDIO with EXTINT[10], ADC AIN[18], PTC X[2], SERCOM0/PAD[2], SERCOM2/PAD[2], TCC1/WO[0], I2S/SCK[0] and GCLK_IO[4] functions.
20 PA11 bidirectional General-purpose I/O on VDDIO with EXTINT[11], ADC AIN[19], PTC X[3], SERCOM0/PAD[3], SERCOM2/PAD[3], TCC1/WO[1], I2S/FS[0] and GCLK_IO[5] functions.
21 VDDIO power_in Digital I/O supply voltage, 1.62V - 3.63V, with 100nF and 10uF decoupling recommended.
22 GND power_in Digital ground.
23 PB10 bidirectional General-purpose I/O on VDDIO with EXTINT[10], SERCOM4/PAD[2], TC5/WO[0], TCC0/WO[4], I2S/MCK[1] and GCLK_IO[4] functions.
24 PB11 bidirectional General-purpose I/O on VDDIO with EXTINT[11], SERCOM4/PAD[3], TC5/WO[1], TCC0/WO[5], I2S/SCK[1] and GCLK_IO[5] functions.
25 PB12 bidirectional General-purpose I/O on VDDIO with EXTINT[12], PTC X[12], SERCOM4/PAD[0], TC4/WO[0], TCC0/WO[6], I2S/FS[1] and GCLK_IO[6] functions; supports I2C Hs mode.
26 PB13 bidirectional General-purpose I/O on VDDIO with EXTINT[13], PTC X[13], SERCOM4/PAD[1], TC4/WO[1], TCC0/WO[7] and GCLK_IO[7] functions; supports I2C Hs mode.
27 PB14 bidirectional General-purpose I/O on VDDIO with EXTINT[14], PTC X[14], SERCOM4/PAD[2], TC5/WO[0] and GCLK_IO[0] functions.
28 PB15 bidirectional General-purpose I/O on VDDIO with EXTINT[15], PTC X[15], SERCOM4/PAD[3], TC5/WO[1] and GCLK_IO[1] functions.
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] functions; supports I2C Hs mode.
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] functions; supports I2C Hs mode.
31 PA14 bidirectional General-purpose I/O on VDDIO with EXTINT[14], XIN (crystal oscillator input), SERCOM2/PAD[2], SERCOM4/PAD[2], TC3/WO[0], TCC0/WO[4] and GCLK_IO[0] functions.
32 PA15 bidirectional General-purpose I/O on VDDIO with EXTINT[15], XOUT (crystal oscillator output), SERCOM2/PAD[3], SERCOM4/PAD[3], TC3/WO[1], TCC0/WO[5] and GCLK_IO[1] functions.
33 GND power_in Digital ground.
34 VDDIO power_in Digital I/O supply voltage, 1.62V - 3.63V, with 100nF and 10uF decoupling recommended.
35 PA16 bidirectional General-purpose I/O on VDDIO with EXTINT[0], PTC X[4], SERCOM1/PAD[0], SERCOM3/PAD[0], TCC2/WO[0], TCC0/WO[6] and GCLK_IO[2] functions; supports I2C Hs mode.
36 PA17 bidirectional General-purpose I/O on VDDIO with EXTINT[1], PTC X[5], SERCOM1/PAD[1], SERCOM3/PAD[1], TCC2/WO[1], TCC0/WO[7] and GCLK_IO[3] functions; supports I2C Hs mode.
37 PA18 bidirectional General-purpose I/O on VDDIO with EXTINT[2], PTC X[6], SERCOM1/PAD[2], SERCOM3/PAD[2], TC3/WO[0], TCC0/WO[2] and AC/CMP[0] functions.
38 PA19 bidirectional General-purpose I/O on VDDIO with EXTINT[3], PTC X[7], SERCOM1/PAD[3], SERCOM3/PAD[3], TC3/WO[1], TCC0/WO[3], I2S/SD[0] and AC/CMP[1] functions.
39 PB16 bidirectional General-purpose I/O on VDDIO with EXTINT[0], SERCOM5/PAD[0], TC6/WO[0], TCC0/WO[4], I2S/SD[1] and GCLK_IO[2] functions; supports I2C Hs mode.
40 PB17 bidirectional General-purpose I/O on VDDIO with EXTINT[1], SERCOM5/PAD[1], TC6/WO[1], TCC0/WO[5], I2S/MCK[0] and GCLK_IO[3] functions; supports I2C Hs mode.
41 PA20 bidirectional General-purpose I/O on VDDIO with EXTINT[4], PTC X[8], SERCOM5/PAD[2], SERCOM3/PAD[2], TC7/WO[0], TCC0/WO[6], I2S/SCK[0] and GCLK_IO[4] functions.
42 PA21 bidirectional General-purpose I/O on VDDIO with EXTINT[5], PTC X[9], SERCOM5/PAD[3], SERCOM3/PAD[3], TC7/WO[1], TCC0/WO[7], I2S/FS[0] and GCLK_IO[5] functions.
43 PA22 bidirectional General-purpose I/O on VDDIO with EXTINT[6], PTC X[10], SERCOM3/PAD[0], SERCOM5/PAD[0], TC4/WO[0], TCC0/WO[4] and GCLK_IO[6] functions; supports I2C Hs mode.
44 PA23 bidirectional General-purpose I/O on VDDIO with EXTINT[7], PTC X[11], SERCOM3/PAD[1], SERCOM5/PAD[1], TC4/WO[1], TCC0/WO[5], USB/SOF 1kHz and GCLK_IO[7] functions; supports I2C Hs mode.
45 PA24 bidirectional General-purpose I/O on VDDIO with EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC5/WO[0], TCC1/WO[2] and USB/DM; enable a pull-up if unconnected to avoid extra current (<1mA).
46 PA25 bidirectional General-purpose I/O on VDDIO with EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC5/WO[1], TCC1/WO[3] and USB/DP; enable a pull-up if unconnected to avoid extra current (<1mA).
47 GND power_in Digital ground.
48 VDDIO power_in Digital I/O supply voltage, 1.62V - 3.63V, with 100nF and 10uF decoupling recommended.
49 PB22 bidirectional General-purpose I/O on VDDIO with EXTINT[6], SERCOM5/PAD[2], TC7/WO[0], TCC3/WO[0] and GCLK_IO[0] functions.
50 PB23 bidirectional General-purpose I/O on VDDIO with EXTINT[7], SERCOM5/PAD[3], TC7/WO[1], TCC3/WO[1] and GCLK_IO[1] functions.
51 PA27 bidirectional General-purpose I/O on VDDIO with EXTINT[15], TCC3/WO[6] and GCLK_IO[0] functions.
52 RESET input Active-low external reset input with internal pull-up; low-level threshold below 0.33VDDIO (VDDIO 1.6V-2.0V) or 0.36VDDIO (VDDIO 2.7V-3.6V).
53 PA28 bidirectional General-purpose I/O on VDDIO with EXTINT[8], TCC3/WO[7] and GCLK_IO[0] functions.
54 GND power_in Digital ground.
55 VDDCORE power_out Regulated core supply output (1.6V to 1.8V) requiring an external 1uF decoupling capacitor.
56 VDDIN power_in Input supply to the internal voltage regulator, 1.62V - 3.63V.
57 PA30 bidirectional General-purpose I/O on VDDIO with EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0], TCC3/WO[4], GCLK_IO[0] and SWCLK (Serial Wire Debug clock) functions.
58 PA31 bidirectional General-purpose I/O on VDDIO with EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1], TCC3/WO[5] and SWDIO (activated only in presence of a debugger) functions.
59 PB30 bidirectional General-purpose I/O on VDDIO with EXTINT[14], SERCOM5/PAD[0], TCC0/WO[0] and TCC1/WO[2] functions; supports I2C Hs mode.
60 PB31 bidirectional General-purpose I/O on VDDIO with EXTINT[15], SERCOM5/PAD[1], TCC0/WO[1] and TCC1/WO[3] functions; supports I2C Hs mode.
61 PB00 bidirectional General-purpose I/O on VDDANA with EXTINT[0], ADC AIN[8], PTC Y[6], SERCOM5/PAD[2] and TC7/WO[0] functions.
62 PB01 bidirectional General-purpose I/O on VDDANA with EXTINT[1], ADC AIN[9], PTC Y[7], SERCOM5/PAD[3] and TC7/WO[1] functions.
63 PB02 bidirectional General-purpose I/O on VDDANA with EXTINT[2], ADC AIN[10], PTC Y[8], SERCOM5/PAD[0], TC6/WO[0] and TCC3/WO[2] functions.
64 PB03 bidirectional General-purpose I/O on VDDANA with EXTINT[3], ADC AIN[11], PTC Y[9], SERCOM5/PAD[1], TC6/WO[1] and TCC3/WO[3] functions.

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 (SAM D21) VDD 1.62 3.63 V SAM D21: 1.62V, 3.63V 2
VDDIO supply voltage VDDIO 1.62 3.63 V Powers I/O lines, OSC8M and XOSC 36
VDDIN supply voltage VDDIN 1.62 3.63 V Powers I/O lines and the internal regulator 36
VDDANA supply voltage VDDANA 1.62 3.63 V Powers I/O lines and the ADC, AC, DAC, PTC, OSCULP32K, OSC32K, XOSC32K 36
Operating temperature range (F grade) -40 125 °C F = -40 - 125°C Matte Sn Plating 17
Internal regulated core voltage VDDCORE 1.2 V Internal regulated voltage output 36
CPU clock frequency 48 MHz Arm Cortex-M0+ CPU running at up to 48 MHz 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
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. 860

CAD (KiCad official)

  • Symbol: ATSAMD21J17D-AFT
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: atsamd21j17d-aft-etched.step / atsamd21j17d-aft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atsamd21j17d-aft.step / atsamd21j17d-aft.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (1115 pp, sha256 0b613026e7607c46, retrieved 2026-10-24, 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