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ATSAMC21G17A-MUT
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), 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
markdownATSAMC21G17A-MUT
Microchip Tech · Microcontroller Units (MCUs/MPUs/SOCs) · QFN-48-EP(7x7)
ATSAMC21G17A-MUT 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 on the VDDANA domain; alternate functions include EXTINT[0], SERCOM1/PAD[0], TCC2/WO[0], CMP[2], and XIN32 (32.768 kHz crystal input). |
| 2 | PA01 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[1], SERCOM1/PAD[1], TCC2/WO[1], CMP[3], and XOUT32 (32.768 kHz crystal output). |
| 3 | PA02 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[2], AIN[0], AIN[4], Y[0] (PTC) and VOUT (DAC output). |
| 4 | PA03 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[3], ADC-DAC/VREFA (external reference), AIN[1], AIN[5] and Y[1] (PTC). |
| 5 | GNDANA | power_in | Ground for the analog domain (VDDANA). |
| 6 | VDDANA | power_in | Analog supply pin for the analog peripherals and the VDDANA I/O domain. |
| 7 | PB08 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[8], AIN[2], Y[14] (PTC), SERCOM4/PAD[0], TC0/WO[0] and CCL2/IN[8]. |
| 8 | PB09 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[9], AIN[3], AIN[5], Y[15] (PTC), SERCOM4/PAD[1], TC0/WO[1] and CCL2/OUT[2]. |
| 9 | PA04 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[4], SDADC/VREFB, AIN[4], AIN[0], Y[2] (PTC), SERCOM0/PAD[0], TCC0/WO[0] and CCL0/IN[0]. |
| 10 | PA05 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[5], AIN[5], AIN[1], Y[3] (PTC), SERCOM0/PAD[1], TCC0/WO[1] and CCL0/IN[1]. |
| 11 | PA06 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[6], AIN[6], AIN[2], Y[4] (PTC), AINN[0], SERCOM0/PAD[2], TCC1/WO[0] and CCL0/IN[2]. |
| 12 | PA07 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[7], AIN[7], AIN[3], Y[5] (PTC), AINP[0], SERCOM0/PAD[3], TCC1/WO[1] and CCL0/OUT[0]. |
| 13 | PA08 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include NMI, AIN[8], AIN[10], X[0]/Y[16] (PTC), SERCOM0/PAD[0], SERCOM2/PAD[0], TCC0/WO[0], TCC1/WO[2] and CCL1/IN[3]. |
| 14 | PA09 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[9], AIN[9], AIN[11], X[1]/Y[17] (PTC), SERCOM0/PAD[1], SERCOM2/PAD[1], TCC0/WO[1], TCC1/WO[3] and CCL1/IN[4]. |
| 15 | PA10 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[10], AIN[10], X[2]/Y[18] (PTC), SERCOM0/PAD[2], SERCOM2/PAD[2], TCC1/WO[0], TCC0/WO[2], GCLK_IO[4] and CCL1/IN[5]. |
| 16 | PA11 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[11], AIN[11], X[3]/Y[19] (PTC), SERCOM0/PAD[3], SERCOM2/PAD[3], TCC1/WO[1], TCC0/WO[3], GCLK_IO[5] and CCL1/OUT[1]. |
| 17 | VDDIO | power_in | I/O supply for the VDDIO pin domain (pins PA08-PA25, PB10, PB11 and others in that domain). |
| 18 | GND | power_in | Digital ground for the VDDIO and core domains. |
| 19 | PB10 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[10], SERCOM4/PAD[2], TC1/WO[0], TCC0/WO[4], CAN1/TX, GCLK_IO[4] and CCL1/IN[5]. |
| 20 | PB11 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[11], SERCOM4/PAD[3], TC1/WO[1], TCC0/WO[5], CAN1/RX, GCLK_IO[5] and CCL1/OUT[1]. |
| 21 | PA12 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[12], SERCOM2/PAD[0], SERCOM4/PAD[0], TCC2/WO[0], TCC0/WO[6] and AC/CMP[0]. |
| 22 | PA13 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[13], SERCOM2/PAD[1], SERCOM4/PAD[1], TCC2/WO[1], TCC0/WO[7] and AC/CMP[1]. |
| 23 | PA14 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[14], SERCOM2/PAD[2], SERCOM4/PAD[2], TC4/WO[0], TCC0/WO[4], GCLK_IO[0] and XIN (XOSC crystal/clock input). |
| 24 | PA15 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[15], SERCOM2/PAD[3], SERCOM4/PAD[3], TC4/WO[1], TCC0/WO[5], GCLK_IO[1] and XOUT (XOSC crystal output). |
| 25 | PA16 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[0], X[4]/Y[20] (PTC), SERCOM1/PAD[0], SERCOM3/PAD[0], TCC2/WO[0], TCC0/WO[6], GCLK_IO[2] and CCL0/IN[0]. |
| 26 | PA17 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[1], X[5]/Y[21] (PTC), SERCOM1/PAD[1], SERCOM3/PAD[1], TCC2/WO[1], TCC0/WO[7], GCLK_IO[3] and CCL0/IN[1]. |
| 27 | PA18 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[2], X[6]/Y[22] (PTC), SERCOM1/PAD[2], SERCOM3/PAD[2], TC4/WO[0], TCC0/WO[2], AC/CMP[0] and CCL0/IN[2]. |
| 28 | PA19 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[3], X[7]/Y[23] (PTC), SERCOM1/PAD[3], SERCOM3/PAD[3], TC4/WO[1], TCC0/WO[3], AC/CMP[1] and CCL0/OUT[0]. |
| 29 | PA20 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[4], X[8]/Y[24] (PTC), SERCOM5/PAD[2], SERCOM3/PAD[2], TC3/WO[0], TCC0/WO[6] and GCLK_IO[4]. |
| 30 | PA21 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[5], X[9]/Y[25] (PTC), SERCOM5/PAD[3], SERCOM3/PAD[3], TC3/WO[1], TCC0/WO[7] and GCLK_IO[5]. |
| 31 | PA22 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[6], X[10]/Y[26] (PTC), SERCOM3/PAD[0], SERCOM5/PAD[0], TC0/WO[0], TCC0/WO[4], GCLK_IO[6] and CCL2/IN[6]. |
| 32 | PA23 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[7], X[11]/Y[27] (PTC), SERCOM3/PAD[1], SERCOM5/PAD[1], TC0/WO[1], TCC0/WO[5], GCLK_IO[7] and CCL2/IN[7]. |
| 33 | PA24 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[12], SERCOM3/PAD[2], SERCOM5/PAD[2], TC1/WO[0], TCC1/WO[2], CAN0/TX, AC/CMP[2] and CCL2/IN[8]. |
| 34 | PA25 | bidirectional | General-purpose I/O on the VDDIO domain; alternate functions include EXTINT[13], SERCOM3/PAD[3], SERCOM5/PAD[3], TC1/WO[1], TCC1/WO[3], CAN0/RX, AC/CMP[3] and CCL2/OUT[2]. |
| 35 | GND | power_in | Digital ground for the VDDIO and core domains. |
| 36 | VDDIO | power_in | I/O supply for the VDDIO pin domain. |
| 37 | PB22 | bidirectional | General-purpose I/O; alternate functions include EXTINT[6], SERCOM5/PAD[2], TC3/WO[0], CAN0/TX, GCLK_IO[0] and CCL0/IN[0]; supply listed as VDDIN in the pin-multiplexing table. |
| 38 | PB23 | bidirectional | General-purpose I/O; alternate functions include EXTINT[7], SERCOM5/PAD[3], TC3/WO[1], CAN0/RX, GCLK_IO[1] and CCL0/OUT[0]; supply listed as VDDIN in the pin-multiplexing table. |
| 39 | PA27 | bidirectional | General-purpose I/O on the VDDIN domain; alternate functions include EXTINT[15] and GCLK_IO[0]. |
| 40 | RESET | input | External active-low reset input pin. |
| 41 | PA28 | bidirectional | General-purpose I/O on the VDDIN domain; alternate functions include EXTINT[8] and GCLK_IO[0]. |
| 42 | GND | power_in | Digital ground for the VDDIN and core domains. |
| 43 | VDDCORE | power_out | Regulated output of the internal voltage regulator supplying the core; it is a regulated output, not an input supply. |
| 44 | VDDIN | power_in | Input supply for the internal voltage regulator and the VDDIN I/O domain (PA27, PA28, PA30, PA31). |
| 45 | PA30 | bidirectional | General-purpose I/O on the VDDIN domain; alternate functions include EXTINT[10], SERCOM1/PAD[2], TCC1/WO[0], CORTEX_M0P/SWCLK (Serial Wire Debug clock), GCLK_IO[0] and CCL1/IN[3]. |
| 46 | PA31 | bidirectional | General-purpose I/O on the VDDIN domain; alternate functions include EXTINT[11], SERCOM1/PAD[3], TCC1/WO[1], CORTEX_M0P/SWDIO (Serial Wire Debug data) and CCL1/OUT[1]. |
| 47 | PB02 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[2], AIN[2], Y[8] (PTC), SERCOM5/PAD[0], TC2/WO[0] and CCL0/OUT[0]. |
| 48 | PB03 | bidirectional | General-purpose I/O on the VDDANA domain; alternate functions include EXTINT[3], AIN[3], Y[9] (PTC), SERCOM5/PAD[1] and TC2/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 | Single Chip Microcomputer/Microcontroller |
| 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 VDDIO | VDDIO | 2.7 | 5.5 | V | 38 | ||
| Supply voltage VDDIN | VDDIN | 2.7 | 5.5 | V | 38 | ||
| Supply voltage VDDANA | VDDANA | 2.7 | 5.5 | V | 38 | ||
| Operating supply voltage (common VDD) | VDD | 2.7 | 5.5 | V | 1 | ||
| Operating temperature range | -40 | 85 | °C | DC to 64 MHz | 1 | ||
| Maximum CPU frequency | 64 | MHz | -40°C to +85°C | 1 | |||
| Internal regulated core voltage VDDCORE | VDDCORE | 1.2 | V | 38 |
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 | PC | 10.3. Micro Trace Buffer MTB base address corrected from 0x41006000 to 0x41008000. 22. SUPC, Supply Controller 22.6.3.3. VDD Brown-Out Detector (BODVDD): Removed | 1198 | |
| 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. | 987 |
CAD (KiCad official)
- Symbol:
ATSAMC21G17A-MUT - 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:
atsamc21g17a-mut-etched.step/atsamc21g17a-mut-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);atsamc21g17a-mut.step/atsamc21g17a-mut.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (1206 pp, sha256
5991eaad10c5cd35, retrieved 2026-10-28, 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).