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ATSAMD20J16B-AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownATSAMD20J16B-AU
Microchip Tech · Pre-ordered MCUs · TQFP-64(10x10)
ATSAMD20J16B-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 | Digital I/O pin PA00 (port A, bit 0) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 2 | PA01 | bidirectional | Digital I/O pin PA01 (port A, bit 1) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 3 | PA02 | bidirectional | Digital I/O pin PA02 (port A, bit 2) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 4 | PA03 | bidirectional | Digital I/O pin PA03 (port A, bit 3) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 5 | PB04 | bidirectional | Digital I/O pin PB04 (port B, bit 4) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 6 | PB05 | bidirectional | Digital I/O pin PB05 (port B, bit 5) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 7 | GNDANA | power_in | Analog ground pin, as named in the pinout. |
| 8 | VDDANA | power_in | Analog supply pin, as named in the pinout. |
| 9 | PB06 | bidirectional | Digital I/O pin PB06 (port B, bit 6) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 10 | PB07 | bidirectional | Digital I/O pin PB07 (port B, bit 7) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 11 | PB08 | bidirectional | Digital I/O pin PB08 (port B, bit 8) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 12 | PB09 | bidirectional | Digital I/O pin PB09 (port B, bit 9) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 13 | PA04 | bidirectional | Digital I/O pin PA04 (port A, bit 4) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 14 | PA05 | bidirectional | Digital I/O pin PA05 (port A, bit 5) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 15 | PA06 | bidirectional | Digital I/O pin PA06 (port A, bit 6) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 16 | PA07 | bidirectional | Digital I/O pin PA07 (port A, bit 7) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 17 | PA08 | bidirectional | Digital I/O pin PA08 (port A, bit 8) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 18 | PA09 | bidirectional | Digital I/O pin PA09 (port A, bit 9) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 19 | PA10 | bidirectional | Digital I/O pin PA10 (port A, bit 10) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 20 | PA11 | bidirectional | Digital I/O pin PA11 (port A, bit 11) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 21 | VDDIO | power_in | I/O supply pin; the device operating voltage range is stated as 1.62 V to 3.63 V. |
| 22 | GND | power_in | Ground reference pin. |
| 23 | PB10 | bidirectional | Digital I/O pin PB10 (port B, bit 10) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 24 | PB11 | bidirectional | Digital I/O pin PB11 (port B, bit 11) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 25 | PB12 | bidirectional | Digital I/O pin PB12 (port B, bit 12) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 26 | PB13 | bidirectional | Digital I/O pin PB13 (port B, bit 13) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 27 | PB14 | bidirectional | Digital I/O pin PB14 (port B, bit 14) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 28 | PB15 | bidirectional | Digital I/O pin PB15 (port B, bit 15) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 29 | PA12 | bidirectional | Digital I/O pin PA12 (port A, bit 12) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 30 | PA13 | bidirectional | Digital I/O pin PA13 (port A, bit 13) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 31 | PA14 | bidirectional | Digital I/O pin PA14 (port A, bit 14) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 32 | PA15 | bidirectional | Digital I/O pin PA15 (port A, bit 15) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 33 | GND | power_in | Ground reference pin. |
| 34 | VDDIO | power_in | I/O supply pin; the device operating voltage range is stated as 1.62 V to 3.63 V. |
| 35 | PA16 | bidirectional | Digital I/O pin PA16 (port A, bit 16) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 36 | PA17 | bidirectional | Digital I/O pin PA17 (port A, bit 17) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 37 | PA18 | bidirectional | Digital I/O pin PA18 (port A, bit 18) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 38 | PA19 | bidirectional | Digital I/O pin PA19 (port A, bit 19) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 39 | PB16 | bidirectional | Digital I/O pin PB16 (port B, bit 16) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 40 | PB17 | bidirectional | Digital I/O pin PB17 (port B, bit 17) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 41 | PA20 | bidirectional | Digital I/O pin PA20 (port A, bit 20) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 42 | PA21 | bidirectional | Digital I/O pin PA21 (port A, bit 21) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 43 | PA22 | bidirectional | Digital I/O pin PA22 (port A, bit 22) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 44 | PA23 | bidirectional | Digital I/O pin PA23 (port A, bit 23) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 45 | PA24 | bidirectional | Digital I/O pin PA24 (port A, bit 24) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 46 | PA25 | bidirectional | Digital I/O pin PA25 (port A, bit 25) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 47 | GND | power_in | Ground reference pin. |
| 48 | VDDIO | power_in | I/O supply pin; the device operating voltage range is stated as 1.62 V to 3.63 V. |
| 49 | PB22 | bidirectional | Digital I/O pin PB22 (port B, bit 22) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 50 | PB23 | bidirectional | Digital I/O pin PB23 (port B, bit 23) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 51 | PA27 | bidirectional | Digital I/O pin PA27 (port A, bit 27) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 52 | RESET | input | Reset pin per the pinout legend; polarity and threshold levels are not given in this extract. |
| 53 | PA28 | bidirectional | Digital I/O pin PA28 (port A, bit 28) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 54 | GND | power_in | Ground reference pin. |
| 55 | VDDCORE | power_out | Regulated core supply output pin, as identified in the pinout legend. |
| 56 | VDDIN | power_in | Input supply pin, as identified in the pinout legend. |
| 57 | PA30 | bidirectional | Digital I/O pin PA30 (port A, bit 30) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 58 | PA31 | bidirectional | Digital I/O pin PA31 (port A, bit 31) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 59 | PB30 | bidirectional | Digital I/O pin PB30 (port B, bit 30) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 60 | PB31 | bidirectional | Digital I/O pin PB31 (port B, bit 31) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 61 | PB00 | bidirectional | Digital I/O pin PB00 (port B, bit 0) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 62 | PB01 | bidirectional | Digital I/O pin PB01 (port B, bit 1) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 63 | PB02 | bidirectional | Digital I/O pin PB02 (port B, bit 2) per the pinout legend; alternate peripheral functions are not given in this extract. |
| 64 | PB03 | bidirectional | Digital I/O pin PB03 (port B, bit 3) per the pinout legend; alternate peripheral functions are not given in this extract. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | TQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| 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 | 2 | |||
| Maximum CPU frequency | 48 | MHz | 5 | ||||
| Operating temperature (package grade U, -40 to 85 °C) | -40 | 85 | °C | Package grade U per ordering code key | 6 | ||
| Thermal resistance, junction-to-ambient | θJA | 66.7 | °C/W | 64-pin TQFP | 39 | ||
| Thermal resistance, junction-to-case | θJC | 11.9 | °C/W | 64-pin TQFP | 39 |
CAD (KiCad official)
- Symbol:
ATSAMD20J16B-AU - Footprint:
Package_QFP:TQFP-64_10x10mm_P0.5mm - 3D model: TQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
atsamd20j16b-au-etched.step/atsamd20j16b-au-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atsamd20j16b-au.step/atsamd20j16b-au.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (51 pp, sha256
03b7f8fe8b9074bd, 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).