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ATSAME51G19A-MU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, QFN-48-EP(7x7). 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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Contents
README
markdownATSAME51G19A-MU
Microchip Tech · Pre-ordered MCUs · QFN-48-EP(7x7)
ATSAME51G19A-MU from Microchip Tech, in a QFN-48-EP(7x7). 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 | General-purpose I/O pin PA00 (VDDIO group) that can also be used as EXTINT[0], SERCOM1 PAD[0], TC2 WO[0], or XIN32 of the 32 kHz crystal oscillator (XOSC32K). |
| 2 | PA01 | bidirectional | General-purpose I/O pin PA01 that can also be used as EXTINT[1], SERCOM1 PAD[1], TC2 WO[1], or XOUT32 of the 32 kHz crystal oscillator (XOSC32K). |
| 3 | PA02 | bidirectional | General-purpose I/O pin PA02 that can also be used as EXTINT[2], ADC0 AIN[0], DAC VOUT[0], or RTC tamper input IN2. |
| 4 | PA03 | bidirectional | General-purpose I/O pin PA03 that can also be used as EXTINT[3], ADC0 AIN[1], ANAREF VREFA, or PTC X0/Y0. |
| 5 | GNDANA | power_in | Analog ground pin for the analog peripherals (ADC, DAC, AC, PTC). |
| 6 | VDDANA | power_in | Analog supply pin for the analog peripherals; device operating range is 1.71 V to 3.63 V. |
| 7 | PB08 | bidirectional | General-purpose I/O pin PB08 that can also be used as EXTINT[8], ADC0 AIN[2], ADC1 AIN[0], PTC X1/Y1, SERCOM4 PAD[0], TC4 WO[0], or CCL IN[8]. |
| 8 | PB09 | bidirectional | General-purpose I/O pin PB09 that can also be used as EXTINT[9], ADC0 AIN[3], ADC1 AIN[1], PTC X2/Y2, SERCOM4 PAD[1], TC4 WO[1], or CCL OUT[2]. |
| 9 | PA04 | bidirectional | General-purpose I/O pin PA04 that can also be used as EXTINT[4], ANAREF VREFB, ADC0 AIN[4], AC AIN[0], PTC X3/Y3, SERCOM0 PAD[0], TC0 WO[0], or CCL IN[0]. |
| 10 | PA05 | bidirectional | General-purpose I/O pin PA05 that can also be used as EXTINT[5], ADC0 AIN[5], AC AIN[1], DAC VOUT[1], SERCOM0 PAD[1], TC0 WO[1], or CCL IN[1]. |
| 11 | PA06 | bidirectional | General-purpose I/O pin PA06 that can also be used as EXTINT[6], ANAREF VREFC, ADC0 AIN[6], AC AIN[2], PTC X4/Y4, SERCOM0 PAD[2], TC1 WO[0], SDHC0 SDCD, or CCL IN[2]. |
| 12 | PA07 | bidirectional | General-purpose I/O pin PA07 that can also be used as EXTINT[7], ADC0 AIN[7], AC AIN[3], PTC X5/Y5, SERCOM0 PAD[3], TC1 WO[1], SDHC0 SDWP, or CCL OUT[0]. |
| 13 | PA08 | bidirectional | High-sink I/O pin PA08 (VDDIOB group, I2C capable) that can also be used as NMI, ADC0 AIN[8], ADC1 AIN[2], PTC X6/Y6, SERCOM0 PAD[0], SERCOM2 PAD[1], TCC0/TCC1 WO, QSPI DATA[0], SDHC0 SDCMD, I2S MCK[0], or CCL IN[3]. |
| 14 | PA09 | bidirectional | High-sink-capable I/O pin PA09 (VDDIOB group, I2C capable) that can also be used as EXTINT[9], ADC0 AIN[9], ADC1 AIN[3], PTC X7/Y7, SERCOM0 PAD[1], SERCOM2 PAD[0], TC0/TCC0/TCC1 WO, QSPI DATA[1], SDHC0 SDDAT[0], I2S FS[0], or CCL IN[4]. |
| 15 | PA10 | bidirectional | General-purpose I/O pin PA10 that can also be used as EXTINT[10], ADC0 AIN[10], PTC X8/Y8, SERCOM0 PAD[2], SERCOM2 PAD[2], TC1/TCC0/TCC1 WO, QSPI DATA[2], SDHC0 SDDAT[1], I2S SCK[0], GCLK IO[4], or CCL IN[5]. |
| 16 | PA11 | bidirectional | General-purpose I/O pin PA11 that can also be used as EXTINT[11], ADC0 AIN[11], PTC X9/Y9, SERCOM0 PAD[3], SERCOM2 PAD[3], TC1/TCC0/TCC1 WO, QSPI DATA[3], SDHC0 SDDAT[2], I2S SDO, GCLK IO[5], or CCL OUT[1]. |
| 17 | VDDIO | power_in | Digital I/O supply for the GPIO pin cluster; device operating range is 1.71 V to 3.63 V. |
| 18 | GND | power_in | Digital ground pin. |
| 19 | PB10 | bidirectional | General-purpose I/O pin PB10 that can also be used as EXTINT[10], SERCOM4 PAD[2], TC5/TCC0/TCC1 WO, QSPI SCK, SDHC0 SDDAT[3], I2S SDI, GCLK IO[4], or CCL IN[11]. |
| 20 | PB11 | bidirectional | General-purpose I/O pin PB11 that can also be used as EXTINT[11], SERCOM4 PAD[3], TC5/TCC0/TCC1 WO, QSPI CS, SDHC0 SDCK, I2S FS[1], GCLK IO[5], or CCL OUT[1]. |
| 21 | PA12 | bidirectional | High-sink-capable I/O pin PA12 (VDDIO group, I2C capable); its full multiplexing list is on a page not included in the provided text. |
| 22 | PA13 | bidirectional | High-sink-capable I/O pin PA13 (VDDIO group, I2C capable); its full multiplexing list is on a page not included in the provided text. |
| 23 | PA14 | bidirectional | General-purpose I/O pin PA14, which is the XIN pin of crystal oscillator XOSC0 when that oscillator is used. |
| 24 | PA15 | bidirectional | General-purpose I/O pin PA15, which is the XOUT pin of crystal oscillator XOSC0 when that oscillator is used. |
| 25 | PA16 | bidirectional | High-sink-capable I/O pin PA16 (VDDIO group, I2C capable); its full multiplexing list is on a page not included in the provided text. |
| 26 | PA17 | bidirectional | High-sink-capable I/O pin PA17 (VDDIO group, I2C capable); its full multiplexing list is on a page not included in the provided text. |
| 27 | PA18 | bidirectional | General-purpose I/O pin PA18; its multiplexing list is on a page not included in the provided text. |
| 28 | PA19 | bidirectional | General-purpose I/O pin PA19; its multiplexing list is on a page not included in the provided text. |
| 29 | PA20 | bidirectional | General-purpose I/O pin PA20 that can also be used as EXTINT[4], PTC X14/Y14, SERCOM5/SERCOM3 PAD[2], TC7/TCC0/TCC1 WO, SDHC1 SDCMD, I2S FS[0], PCC DATA[4], or GMAC GMDC. |
| 30 | PA21 | bidirectional | General-purpose I/O pin PA21 that can also be used as EXTINT[5], PTC X15/Y15, SERCOM5/SERCOM3 PAD[3], TC7/TCC0/TCC1 WO, SDHC1 SDCK, I2S SDO, PCC DATA[5], or GMAC GMDIO. |
| 31 | PA22 | bidirectional | High-sink-capable I/O pin PA22 (VDDIO group, I2C capable) that can also be used as EXTINT[6], PTC X16/Y16, SERCOM3 PAD[0], SERCOM5 PAD[1], TC4/TCC0/TCC1 WO, CAN0 TX, I2S SDI, PCC DATA[6], or CCL IN[6]. |
| 32 | PA23 | bidirectional | High-sink-capable I/O pin PA23 (VDDIO group, I2C capable) that can also be used as EXTINT[7], PTC X17/Y17, SERCOM3 PAD[1], SERCOM5 PAD[0], TC4/TCC0/TCC1 WO, USB SOF_1KHZ, CAN0 RX, I2S FS[1], PCC DATA[7], or CCL IN[7]. |
| 33 | PA24 | bidirectional | General-purpose I/O pin PA24 that can also be used as EXTINT[8], SERCOM3/SERCOM5 PAD[2], TC5 WO[0], TCC2 WO[2], PDEC PDEC[0], USB DM, CAN0 TX, or CCL IN[8]. |
| 34 | PA25 | bidirectional | General-purpose I/O pin PA25 that can also be used as EXTINT[9], SERCOM3/SERCOM5 PAD[3], TC5 WO[1], PDEC PDEC[1], USB DP, CAN0 RX, or CCL OUT[2]. |
| 35 | GND | power_in | Digital ground pin. |
| 36 | VDDIO | power_in | Digital I/O supply for the GPIO pin cluster; device operating range is 1.71 V to 3.63 V. |
| 37 | PB22 | bidirectional | General-purpose I/O pin PB22 that can also be used as XIN of crystal oscillator XOSC1, EXTINT[6], SERCOM1/SERCOM5 PAD[2], TC7 WO[0], PDEC PDEC[2], USB SOF_1KHZ, GCLK IO[0], or CCL IN[0]. |
| 38 | PB23 | bidirectional | General-purpose I/O pin PB23 that can also be used as XOUT of crystal oscillator XOSC1, EXTINT[7], SERCOM1/SERCOM5 PAD[3], TC7 WO[1], PDEC PDEC[0], GCLK IO[1], or CCL OUT[0]. |
| 39 | PA27 | bidirectional | General-purpose I/O pin PA27 that can also be used as EXTINT[11], PTC X18/Y18, or GCLK IO[1]. |
| 40 | RESETN | input | External active-low reset input for the device. |
| 41 | VDDCORE | power_in | Core supply pin for the device; the provided text does not give its limits or whether it is regulator-driven. |
| 42 | GND | power_in | Digital ground pin. |
| 43 | VSW | passive | Regulator switching pin of the embedded Buck/LDO regulator; the provided text does not give its electrical limits. |
| 44 | VDDIO | power_in | Digital I/O supply for the GPIO pin cluster; device operating range is 1.71 V to 3.63 V. |
| 45 | PA30 | bidirectional | General-purpose I/O pin PA30 that is the SWCLK serial-wire debug clock pin by default; it can also be used as EXTINT[14], PTC X19/Y19, SERCOM1/SERCOM7 PAD[2], TC6/TCC2 WO[0], GCLK IO[0], or CCL IN[3]. |
| 46 | PA31 | bidirectional | General-purpose I/O pin PA31 that is the SWDIO serial-wire debug data pin; it can also be used as EXTINT[15], SERCOM1/SERCOM7 PAD[3], TC6/TCC2 WO[1], or CCL OUT[1]. |
| 47 | PB02 | bidirectional | General-purpose I/O pin PB02 that can also be used as EXTINT[2], ADC0 AIN[14], PTC X20/Y20, SERCOM5 PAD[0], TC6/TCC2 WO, CCL OUT[0], and is an RTC tamper input (IN1) and SUPC output (OUT1). |
| 48 | PB03 | bidirectional | General-purpose I/O pin PB03 that can also be used as EXTINT[3], ADC0 AIN[15], PTC X21/Y21, SERCOM5 PAD[1], or TC6 WO[1]. |
| 49 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | QFN-48-EP(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 49 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage VDD (VDDIO and VDDANA) | VDD | 1.71 | 3.63 | V | Same voltage applied to VDDIO and VDDANA | 46 | |
| I/O B supply voltage | VDDIOB | 1.71 | 3.63 | V | Must be equal to or lower than VDDIO | 46 | |
| Battery backup supply voltage | VBAT | 1.71 | 3.63 | V | Supplies the Automatic Power Switch | 46 | |
| Operating frequency (DC to fmax) | 120 | MHz | 1.71V to 3.63V, -40°C to +85°C, DC to 120 MHz | 1 | |||
| Operating temperature range (grade U, industrial) | -40 | 85 | °C | Ordering grade U: -40°C to +85°C Matte Sn (Industrial) | 19 | ||
| Internal regulator output voltage VDDCORE | VDDCORE | 1.2 | V | Internal voltage regulator output in linear mode | 46 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | pet | nu1RBase nu1 I Crypto RAM u2RLength Base of R Base of R value filled repetitively with u4FillValue | 1316 | |
| contacts | tin | including indium tin oxide (ITO) sensor grids. The PTC requires one pin per X-line and one pin per Y-line. In the Self Capacitance mode, the PTC requires only one pin (Y-line) for each touch sensor. | 1697 |
CAD (KiCad official)
- Symbol:
ATSAME51G19A-MU - Footprint:
Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm - 3D model: QFN-48-EP(7x7) (KiCad packages3D, STEP)
- 3D model files:
atsame51g19a-mu-etched.step/atsame51g19a-mu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atsame51g19a-mu.step/atsame51g19a-mu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (1934 pp, sha256
6f02ccc3e69325ab, 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).