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ATSAML21J16B-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-microcontrolleratsaml21j16b-autfactory-2.0.0extractor-text

Verified ATSAML21J16B-AUT

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 64 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ATSAML21J16B-AUT · TQFP-64(10x10) · 64 pins
  • ✓copper: 64 copper pads, none touching another net
  • ✓datasheet: all 64 pin names found in the 40-page datasheet
  • ✓distributor: lcsc C2053787, digikey ATSAML21J16B-AUTTR-ND, mouser 556-ATSAML21J16B-AUT
  • ✓family: TQFP-64_10x10mm_P0.5mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-fekcy_vm/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 64 pins = 64 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 64 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ atsaml21j16b-aut.kicad_sym✓ atsaml21j16b-aut.kicad_mod✓ atsaml21j16b-aut.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 5d ago
viewers atsaml21j16b-aut: viewers · Ray 5d ago
atsaml21j16b-aut-etched.glb Publish 0.1.0 · Ray 5d ago
atsaml21j16b-aut-etched.step atsaml21j16b-aut: factory component page (tier=mfr) · Ray 5d ago
atsaml21j16b-aut-hero.glb atsaml21j16b-aut: hero GLB from the etched model (keeps the MPN mark) · Ray 5d ago
atsaml21j16b-aut-hero.overlay.json Publish 0.1.0 · Ray 5d ago
atsaml21j16b-aut.glb Publish 0.1.0 · Ray 5d ago
atsaml21j16b-aut.kicad_mod Publish 0.1.0 · Ray 5d ago
atsaml21j16b-aut.kicad_sym Publish 0.1.0 · Ray 5d ago
atsaml21j16b-aut.lbr Publish 0.1.0 · Ray 5d ago
atsaml21j16b-aut.step Publish 0.1.0 · Ray 5d ago
package.json Publish 0.1.0 · Ray 5d ago
page.json Set visibility: public · Ray 5d ago
README.md Publish 0.1.0 · Ray 5d ago
verification.json Verified: Published by the parts factory: tier mfr, 64 pins · Ray 5d ago

ATSAML21J16B-AUT

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

ATSAML21J16B-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 Port A general-purpose I/O pin PA00; this excerpt gives no alternate functions or electrical limits for it.
2 PA01 bidirectional Port A general-purpose I/O pin PA01; this excerpt gives no alternate functions or electrical limits for it.
3 PA02 bidirectional Port A general-purpose I/O pin PA02; this excerpt gives no alternate functions or electrical limits for it.
4 PA03 bidirectional Port A general-purpose I/O pin PA03; this excerpt gives no alternate functions or electrical limits for it.
5 PB04 bidirectional Port B general-purpose I/O pin PB04; this excerpt gives no alternate functions or electrical limits for it.
6 PB05 bidirectional Port B general-purpose I/O pin PB05; this excerpt gives no alternate functions or electrical limits for it.
7 GNDANA power_in Ground pin for the analog domain, listed separately from digital GND in the pinout.
8 VDDANA power_in Analog supply pin; the device operating voltage range is 1.62V to 3.63V per the features list.
9 PB06 bidirectional Port B general-purpose I/O pin PB06; this excerpt gives no alternate functions or electrical limits for it.
10 PB07 bidirectional Port B general-purpose I/O pin PB07; this excerpt gives no alternate functions or electrical limits for it.
11 PB08 bidirectional Port B general-purpose I/O pin PB08; this excerpt gives no alternate functions or electrical limits for it.
12 PB09 bidirectional Port B general-purpose I/O pin PB09; this excerpt gives no alternate functions or electrical limits for it.
13 PA04 bidirectional Port A general-purpose I/O pin PA04; this excerpt gives no alternate functions or electrical limits for it.
14 PA05 bidirectional Port A general-purpose I/O pin PA05; this excerpt gives no alternate functions or electrical limits for it.
15 PA06 bidirectional Port A general-purpose I/O pin PA06; this excerpt gives no alternate functions or electrical limits for it.
16 PA07 bidirectional Port A general-purpose I/O pin PA07; this excerpt gives no alternate functions or electrical limits for it.
17 PA08 bidirectional Port A general-purpose I/O pin PA08; this excerpt gives no alternate functions or electrical limits for it.
18 PA09 bidirectional Port A general-purpose I/O pin PA09; this excerpt gives no alternate functions or electrical limits for it.
19 PA10 bidirectional Port A general-purpose I/O pin PA10; this excerpt gives no alternate functions or electrical limits for it.
20 PA11 bidirectional Port A general-purpose I/O pin PA11; this excerpt gives no alternate functions or electrical limits for it.
21 VDDIO power_in Regulated input/output supply pin for the I/O ring; the device operating voltage range is 1.62V to 3.63V per the features list.
22 GND power_in Ground pin for the digital domain.
23 PB10 bidirectional Port B general-purpose I/O pin PB10; this excerpt gives no alternate functions or electrical limits for it.
24 PB11 bidirectional Port B general-purpose I/O pin PB11; this excerpt gives no alternate functions or electrical limits for it.
25 PB12 bidirectional Port B general-purpose I/O pin PB12; this excerpt gives no alternate functions or electrical limits for it.
26 PB13 bidirectional Port B general-purpose I/O pin PB13; this excerpt gives no alternate functions or electrical limits for it.
27 PB14 bidirectional Port B general-purpose I/O pin PB14; this excerpt gives no alternate functions or electrical limits for it.
28 PB15 bidirectional Port B general-purpose I/O pin PB15; this excerpt gives no alternate functions or electrical limits for it.
29 PA12 bidirectional Port A general-purpose I/O pin PA12; this excerpt gives no alternate functions or electrical limits for it.
30 PA13 bidirectional Port A general-purpose I/O pin PA13; this excerpt gives no alternate functions or electrical limits for it.
31 PA14 bidirectional Port A general-purpose I/O pin PA14; this excerpt gives no alternate functions or electrical limits for it.
32 PA15 bidirectional Port A general-purpose I/O pin PA15; this excerpt gives no alternate functions or electrical limits for it.
33 GND power_in Ground pin for the digital domain of the I/O ring.
34 VDDIO power_in Regulated input/output supply pin for the I/O ring; the device operating voltage range is 1.62V to 3.63V per the features list.
35 PA16 bidirectional Port A general-purpose I/O pin PA16; this excerpt gives no alternate functions or electrical limits for it.
36 PA17 bidirectional Port A general-purpose I/O pin PA17; this excerpt gives no alternate functions or electrical limits for it.
37 PA18 bidirectional Port A general-purpose I/O pin PA18; this excerpt gives no alternate functions or electrical limits for it.
38 PA19 bidirectional Port A general-purpose I/O pin PA19; this excerpt gives no alternate functions or electrical limits for it.
39 PB16 bidirectional Port B general-purpose I/O pin PB16; this excerpt gives no alternate functions or electrical limits for it.
40 PB17 bidirectional Port B general-purpose I/O pin PB17; this excerpt gives no alternate functions or electrical limits for it.
41 PA20 bidirectional Port A general-purpose I/O pin PA20; this excerpt gives no alternate functions or electrical limits for it.
42 PA21 bidirectional Port A general-purpose I/O pin PA21; this excerpt gives no alternate functions or electrical limits for it.
43 PA22 bidirectional Port A general-purpose I/O pin PA22; this excerpt gives no alternate functions or electrical limits for it.
44 PA23 bidirectional Port A general-purpose I/O pin PA23; this excerpt gives no alternate functions or electrical limits for it.
45 PA24 bidirectional Port A general-purpose I/O pin PA24; this excerpt gives no alternate functions or electrical limits for it.
46 PA25 bidirectional Port A general-purpose I/O pin PA25; this excerpt gives no alternate functions or electrical limits for it.
47 GND power_in Ground pin for the digital domain of the I/O ring.
48 VDDIO power_in Regulated input/output supply pin for the I/O ring; the device operating voltage range is 1.62V to 3.63V per the features list.
49 PB22 bidirectional Port B general-purpose I/O pin PB22; this excerpt gives no alternate functions or electrical limits for it.
50 PB23 bidirectional Port B general-purpose I/O pin PB23; this excerpt gives no alternate functions or electrical limits for it.
51 PA27 bidirectional Port A general-purpose I/O pin PA27; this excerpt gives no alternate functions or electrical limits for it.
52 RESET input Reset pin (legend: RESET PIN); the excerpt gives no polarity or electrical limits for it.
53 VSW passive Regulator switching node pin of the internal core regulator; the excerpt does not state its connection or limits.
54 GND power_in Ground pin for the digital domain.
55 VDDCORE power_out Core supply pin, regulated by the internal regulator; the excerpt does not state its voltage or capacitor requirement.
56 VDDIN power_in Input supply pin for the device; the device operating voltage range is 1.62V to 3.63V per the features list.
57 PA30 bidirectional Port A general-purpose I/O pin PA30; this excerpt gives no alternate functions or electrical limits for it.
58 PA31 bidirectional Port A general-purpose I/O pin PA31; this excerpt gives no alternate functions or electrical limits for it.
59 PB30 bidirectional Port B general-purpose I/O pin PB30; this excerpt gives no alternate functions or electrical limits for it.
60 PB31 bidirectional Port B general-purpose I/O pin PB31; this excerpt gives no alternate functions or electrical limits for it.
61 PB00 bidirectional Port B general-purpose I/O pin PB00; this excerpt gives no alternate functions or electrical limits for it.
62 PB01 bidirectional Port B general-purpose I/O pin PB01; this excerpt gives no alternate functions or electrical limits for it.
63 PB02 bidirectional Port B general-purpose I/O pin PB02; this excerpt gives no alternate functions or electrical limits for it.
64 PB03 bidirectional Port B general-purpose I/O pin PB03; this excerpt gives no alternate functions or electrical limits for it.

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 voltage 1.62 3.63 V Operating Voltage, listed in the Features section for the SAM L21 family; no test conditions printed 3
Thermal resistance, junction-to-ambient, 64-pin TQFP θJA 66.7 °C/W 64-pin TQFP, Table 8-1 29
Thermal resistance, junction-to-case, 64-pin TQFP θJC 11.9 °C/W 64-pin TQFP, Table 8-1 29

CAD (KiCad official)

  • Symbol: ATSAML21J16B-AUT
  • Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
  • 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: atsaml21j16b-aut-etched.step / atsaml21j16b-aut-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); atsaml21j16b-aut.step / atsaml21j16b-aut.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (40 pp, sha256 05c26dd321110f72, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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