component
ATSAML21J16B-AUT
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atsaml21j16b-aut.step/atsaml21j16b-aut.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).
# 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](docs/atsaml21j16b-aut-datasheet.pdf) (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](docs/atsaml21j16b-aut-datasheet.pdf)