component
ATSAMG55J19B-AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ATSAMG55J19B-AU
Microchip Tech · Pre-ordered MCUs · LQFP-64(10x10)
ATSAMG55J19B-AU from Microchip Tech, in a LQFP-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 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 2 | NRST | bidirectional | Microcontroller reset I/O, active low with an internal pull-up resistor, powered from VDDIO. |
| 3 | PB12 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 4 | PA4 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset, with no pull-down on this pin. |
| 5 | PA3 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset, with no pull-down on this pin. |
| 6 | PA0 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 7 | PA1 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 8 | PA5 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 9 | VDDCORE | power_in | Core chip power supply, connected externally to VDDOUT or VDDCOREXT100 or VDDCOREXT120. |
| 10 | TEST | input | Test mode select input with pull-down resistor, powered from VDDIO. |
| 11 | PA7 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 12 | PA8 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 13 | GND | power_in | Ground reference. |
| 14 | PB15 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 15 | PB14 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 16 | PA31 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 17 | PA6 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 18 | PA16 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 19 | PA30 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 20 | PA29 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 21 | PA28 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 22 | PA15 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 23 | PA23 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 24 | PA22 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 25 | PA21 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 26 | VDDUSB | power_in | USB power supply, available only on the 64-pin package. |
| 27 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 28 | ADVREF | input | ADC voltage reference input, available only on the 64-pin package. |
| 29 | GND | power_in | Ground reference. |
| 30 | VDDOUT | power_out | Voltage regulator output, operating from 1.08V to 1.32V. |
| 31 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 32 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 33 | PA17 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 34 | PA18 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 35 | PA19 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 36 | PA20 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 37 | PB0 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 38 | PB1 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 39 | PB2 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 40 | PB3 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 41 | PA14 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset, with no pull-down on this pin. |
| 42 | PA13 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 43 | PA12 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 44 | PA11 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 45 | VDDCORE | power_in | Core chip power supply, connected externally to VDDOUT or VDDCOREXT100 or VDDCOREXT120. |
| 46 | PB10 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 47 | PB11 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 48 | PA10 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 49 | PA9 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 50 | PB5 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 51 | PA27 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 52 | PA26 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 53 | GND | power_in | Ground reference. |
| 54 | PB6 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 55 | PB7 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 56 | PA25 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 57 | PB13 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 58 | PA24 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 59 | PB8/XOUT | bidirectional | Parallel I/O Controller B line PB8 shared with main oscillator output XOUT; pull-up is disabled on PB8. |
| 60 | PB9/XIN | bidirectional | Parallel I/O Controller B line PB9 shared with main oscillator input XIN; pull-up is disabled on PB9. |
| 61 | PA2 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 62 | PB4 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 63 | JTAGSEL | input | JTAG selection input, active high with pull-down resistor, powered from VDDIO. |
| 64 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | LQFP-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 |
|---|---|---|---|---|---|---|---|
| VDDIO supply voltage (Peripheral I/O, voltage regulator, ADC power supply) | VDDIO | 1.62 | 3.6 | V | Signal description table, power supplies | 6 | |
| Voltage regulator output (VDDOUT) | VDDOUT | 1.08 | 1.32 | V | Voltage regulator output, signal description table | 6 | |
| Industrial operating temperature range | -40 | 85 | °C | LQFP64, Tray/Reel, MRL B (ATSAMG55J19B-AU) | 14 | ||
| Maximum CPU / device clock frequency | fMAX | 120 | MHz | Cortex-M4 processor; 120 MHz requires VDDCORE from VDDCOREXT120 or trimmed regulator | 5 |
CAD (KiCad official)
- Symbol:
ATSAMG55J19B-AU - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
atsamg55j19b-au-etched.step/atsamg55j19b-au-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atsamg55j19b-au.step/atsamg55j19b-au.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (16 pp, sha256
d321d541eed61a4b, retrieved 2026-10-31, 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).
# ATSAMG55J19B-AU
**Microchip Tech** · Pre-ordered MCUs · LQFP-64(10x10)
ATSAMG55J19B-AU from Microchip Tech, in a LQFP-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 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 2 | NRST | bidirectional | Microcontroller reset I/O, active low with an internal pull-up resistor, powered from VDDIO. |
| 3 | PB12 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 4 | PA4 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset, with no pull-down on this pin. |
| 5 | PA3 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset, with no pull-down on this pin. |
| 6 | PA0 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 7 | PA1 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 8 | PA5 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 9 | VDDCORE | power_in | Core chip power supply, connected externally to VDDOUT or VDDCOREXT100 or VDDCOREXT120. |
| 10 | TEST | input | Test mode select input with pull-down resistor, powered from VDDIO. |
| 11 | PA7 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 12 | PA8 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 13 | GND | power_in | Ground reference. |
| 14 | PB15 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 15 | PB14 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 16 | PA31 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 17 | PA6 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 18 | PA16 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 19 | PA30 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 20 | PA29 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 21 | PA28 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 22 | PA15 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 23 | PA23 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 24 | PA22 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 25 | PA21 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 26 | VDDUSB | power_in | USB power supply, available only on the 64-pin package. |
| 27 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 28 | ADVREF | input | ADC voltage reference input, available only on the 64-pin package. |
| 29 | GND | power_in | Ground reference. |
| 30 | VDDOUT | power_out | Voltage regulator output, operating from 1.08V to 1.32V. |
| 31 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 32 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
| 33 | PA17 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 34 | PA18 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 35 | PA19 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 36 | PA20 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 37 | PB0 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 38 | PB1 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 39 | PB2 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 40 | PB3 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 41 | PA14 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset, with no pull-down on this pin. |
| 42 | PA13 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 43 | PA12 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 44 | PA11 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 45 | VDDCORE | power_in | Core chip power supply, connected externally to VDDOUT or VDDCOREXT100 or VDDCOREXT120. |
| 46 | PB10 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 47 | PB11 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 48 | PA10 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 49 | PA9 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 50 | PB5 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 51 | PA27 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 52 | PA26 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 53 | GND | power_in | Ground reference. |
| 54 | PB6 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 55 | PB7 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 56 | PA25 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 57 | PB13 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 58 | PA24 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 59 | PB8/XOUT | bidirectional | Parallel I/O Controller B line PB8 shared with main oscillator output XOUT; pull-up is disabled on PB8. |
| 60 | PB9/XIN | bidirectional | Parallel I/O Controller B line PB9 shared with main oscillator input XIN; pull-up is disabled on PB9. |
| 61 | PA2 | bidirectional | Parallel I/O Controller A line powered from VDDIO, pulled-up input at reset. |
| 62 | PB4 | bidirectional | Parallel I/O Controller B line powered from VDDIO, pulled-up input at reset. |
| 63 | JTAGSEL | input | JTAG selection input, active high with pull-down resistor, powered from VDDIO. |
| 64 | VDDIO | power_in | Peripheral I/O line, voltage regulator and ADC power supply, operating from 1.62V to 3.6V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | LQFP-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 |
|---|---|---|---|---|---|---|---|
| VDDIO supply voltage (Peripheral I/O, voltage regulator, ADC power supply) | VDDIO | 1.62 | | 3.6 | V | Signal description table, power supplies | 6 |
| Voltage regulator output (VDDOUT) | VDDOUT | 1.08 | | 1.32 | V | Voltage regulator output, signal description table | 6 |
| Industrial operating temperature range | | -40 | | 85 | °C | LQFP64, Tray/Reel, MRL B (ATSAMG55J19B-AU) | 14 |
| Maximum CPU / device clock frequency | fMAX | | | 120 | MHz | Cortex-M4 processor; 120 MHz requires VDDCORE from VDDCOREXT120 or trimmed regulator | 5 |
## CAD (KiCad official)
- Symbol: `ATSAMG55J19B-AU`
- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`
- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files: `atsamg55j19b-au-etched.step` / `atsamg55j19b-au-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `atsamg55j19b-au.step` / `atsamg55j19b-au.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/atsamg55j19b-au-datasheet.pdf) (16 pp, sha256 `d321d541eed61a4b`, retrieved 2026-10-31, 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/atsamg55j19b-au-datasheet.pdf)