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ATSAMG55J19A-AUT
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Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), LQFP-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
markdownATSAMG55J19A-AUT
Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · LQFP-64(10x10)
ATSAMG55J19A-AUT 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 lines, voltage regulator and ADC power supply, specified at 1.62V to 3.6V. |
| 2 | NRST | bidirectional | Microcontroller reset I/O, active low, referenced to VDDIO with a pull-up resistor. |
| 3 | PB12 | bidirectional | Parallel I/O Controller B line PB12, referenced to VDDIO; pulled-up input at reset. |
| 4 | PA4 | bidirectional | Parallel I/O Controller A line PA4, referenced to VDDIO; pulled-up input at reset with no pull-down. |
| 5 | PA3 | bidirectional | Parallel I/O Controller A line PA3, referenced to VDDIO; pulled-up input at reset with no pull-down. |
| 6 | PA0 | bidirectional | Parallel I/O Controller A line PA0, referenced to VDDIO; pulled-up input at reset. |
| 7 | PA1 | bidirectional | Parallel I/O Controller A line PA1, referenced to VDDIO; pulled-up input at reset. |
| 8 | PA5 | bidirectional | Parallel I/O Controller A line PA5, referenced to 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, referenced to VDDIO with a pull-down resistor (named TST in Table 3-1). |
| 11 | PA7 | bidirectional | Parallel I/O Controller A line PA7, referenced to VDDIO; pulled-up input at reset. |
| 12 | PA8 | bidirectional | Parallel I/O Controller A line PA8, referenced to VDDIO; pulled-up input at reset. |
| 13 | GND | power_in | Ground. |
| 14 | PB15 | bidirectional | Parallel I/O Controller B line PB15, referenced to VDDIO; pulled-up input at reset. |
| 15 | PB14 | bidirectional | Parallel I/O Controller B line PB14, referenced to VDDIO; pulled-up input at reset. |
| 16 | PA31 | bidirectional | Parallel I/O Controller A line PA31, referenced to VDDIO; pulled-up input at reset. |
| 17 | PA6 | bidirectional | Parallel I/O Controller A line PA6, referenced to VDDIO; pulled-up input at reset. |
| 18 | PA16 | bidirectional | Parallel I/O Controller A line PA16, referenced to VDDIO; pulled-up input at reset. |
| 19 | PA30 | bidirectional | Parallel I/O Controller A line PA30, referenced to VDDIO; pulled-up input at reset. |
| 20 | PA29 | bidirectional | Parallel I/O Controller A line PA29, referenced to VDDIO; pulled-up input at reset. |
| 21 | PA28 | bidirectional | Parallel I/O Controller A line PA28, referenced to VDDIO; pulled-up input at reset. |
| 22 | PA15 | bidirectional | Parallel I/O Controller A line PA15, referenced to VDDIO; pulled-up input at reset. |
| 23 | PA23 | bidirectional | Parallel I/O Controller A line PA23, referenced to VDDIO; pulled-up input at reset. |
| 24 | PA22 | bidirectional | Parallel I/O Controller A line PA22, referenced to VDDIO; pulled-up input at reset. |
| 25 | PA21 | bidirectional | Parallel I/O Controller A line PA21, referenced to 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 lines, voltage regulator and ADC power supply, specified at 1.62V to 3.6V. |
| 28 | ADVREF | input | ADC voltage reference input, available only on the 64-pin package. |
| 29 | GND | power_in | Ground. |
| 30 | VDDOUT | power_out | Voltage regulator output, specified at 1.08V to 1.32V. |
| 31 | VDDIO | power_in | Peripheral I/O lines, voltage regulator and ADC power supply, specified at 1.62V to 3.6V. |
| 32 | VDDIO | power_in | Peripheral I/O lines, voltage regulator and ADC power supply, specified at 1.62V to 3.6V. |
| 33 | PA17 | bidirectional | Parallel I/O Controller A line PA17, referenced to VDDIO; pulled-up input at reset. |
| 34 | PA18 | bidirectional | Parallel I/O Controller A line PA18, referenced to VDDIO; pulled-up input at reset. |
| 35 | PA19 | bidirectional | Parallel I/O Controller A line PA19, referenced to VDDIO; pulled-up input at reset. |
| 36 | PA20 | bidirectional | Parallel I/O Controller A line PA20, referenced to VDDIO; pulled-up input at reset. |
| 37 | PB0 | bidirectional | Parallel I/O Controller B line PB0, referenced to VDDIO; pulled-up input at reset. |
| 38 | PB1 | bidirectional | Parallel I/O Controller B line PB1, referenced to VDDIO; pulled-up input at reset. |
| 39 | PB2 | bidirectional | Parallel I/O Controller B line PB2, referenced to VDDIO; pulled-up input at reset. |
| 40 | PB3 | bidirectional | Parallel I/O Controller B line PB3, referenced to VDDIO; pulled-up input at reset. |
| 41 | PA14 | bidirectional | Parallel I/O Controller A line PA14, referenced to VDDIO; pulled-up input at reset with no pull-down. |
| 42 | PA13 | bidirectional | Parallel I/O Controller A line PA13, referenced to VDDIO; pulled-up input at reset. |
| 43 | PA12 | bidirectional | Parallel I/O Controller A line PA12, referenced to VDDIO; pulled-up input at reset. |
| 44 | PA11 | bidirectional | Parallel I/O Controller A line PA11, referenced to 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 PB10, referenced to VDDIO; pulled-up input at reset. |
| 47 | PB11 | bidirectional | Parallel I/O Controller B line PB11, referenced to VDDIO; pulled-up input at reset. |
| 48 | PA10 | bidirectional | Parallel I/O Controller A line PA10, referenced to VDDIO; pulled-up input at reset. |
| 49 | PA9 | bidirectional | Parallel I/O Controller A line PA9, referenced to VDDIO; pulled-up input at reset. |
| 50 | PB5 | bidirectional | Parallel I/O Controller B line PB5, referenced to VDDIO; pulled-up input at reset. |
| 51 | PA27 | bidirectional | Parallel I/O Controller A line PA27, referenced to VDDIO; pulled-up input at reset. |
| 52 | PA26 | bidirectional | Parallel I/O Controller A line PA26, referenced to VDDIO; pulled-up input at reset. |
| 53 | GND | power_in | Ground. |
| 54 | PB6 | bidirectional | Parallel I/O Controller B line PB6, referenced to VDDIO; pulled-up input at reset. |
| 55 | PB7 | bidirectional | Parallel I/O Controller B line PB7, referenced to VDDIO; pulled-up input at reset. |
| 56 | PA25 | bidirectional | Parallel I/O Controller A line PA25, referenced to VDDIO; pulled-up input at reset. |
| 57 | PB13 | bidirectional | Parallel I/O Controller B line PB13, referenced to VDDIO; pulled-up input at reset. |
| 58 | PA24 | bidirectional | Parallel I/O Controller A line PA24, referenced to 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 disabled on PB8/PB9. |
| 60 | PB9/XIN | bidirectional | Parallel I/O Controller B line PB9 shared with main oscillator input XIN, referenced to VDDIO; pull-up disabled on PB8/PB9. |
| 61 | PA2 | bidirectional | Parallel I/O Controller A line PA2, referenced to VDDIO; pulled-up input at reset. |
| 62 | PB4 | bidirectional | Parallel I/O Controller B line PB4, referenced to VDDIO; pulled-up input at reset. |
| 63 | JTAGSEL | input | JTAG selection input, active high, referenced to VDDIO with a pull-down resistor. |
| 64 | VDDIO | power_in | Peripheral I/O lines, voltage regulator and ADC power supply, specified at 1.62V to 3.6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | LQFP-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 |
|---|---|---|---|---|---|---|---|
| Peripheral I/O, voltage regulator and ADC supply voltage (VDDIO) | VDDIO | 1.62 | 3.6 | V | Printed as 1.62V to 3.6V in Table 3-1 (signal description) and in the device summary; no separate recommended operating conditions table is given | 6 | |
| Voltage regulator output voltage (VDDOUT) | VDDOUT | 1.08 | 1.32 | V | Printed as 1.08V to 1.32V in Table 3-1 (voltage regulator output) | 6 | |
| Operating temperature range (industrial) | -40 | 85 | °C | Industrial grade, as printed for the ordering codes in Table 6-1 (ATSAMG55J19A-AUT is the A-revision, reel, LQFP64 entry) | 14 | ||
| Maximum CPU / bus clock frequency (fMAX) | fMAX | 120 | MHz | 120 MHz with VDDCOREXT120 or with VDDCORE trimmed by regulator (note 1 of the features list) | 2 |
CAD (KiCad official)
- Symbol:
ATSAMG55J19A-AUT - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
atsamg55j19a-aut-etched.step/atsamg55j19a-aut-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atsamg55j19a-aut.step/atsamg55j19a-aut.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (16 pp, sha256
f9261aacb7b11e9f, retrieved 2026-10-29, 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).