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ATSAMD21G18A-MU on a board, in 3D

ATSAMD21G18A-MU

Microchip Technology

-40℃~+85℃ 1.62V~3.6V 10bit 12bit 256KB 32 Bit 32KB 38 48MHz ARM Cortex-M0+ Built-in FLASH QFN-48-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/ATSAMD21G18A-MU
Category
Microcontrollers (MCU, MPU, SOC)
Package
QFN-48-EP(7x7)
Pins
49

Overview

The ATSAMD21G18A-MU is a microcontroller made by Microchip Technology in a QFN-48-EP(7x7) package with 49 pins. -40℃~+85℃ 1.62V~3.6V 10bit 12bit 256KB 32 Bit 32KB 38 48MHz ARM Cortex-M0+ Built-in FLASH QFN-48-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (MCU_Microchip_SAMD:ATSAMD21G18A-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm, from KiCad's library), ready for a KiCad board. 2,823 are in stock at JLCPCB (part C966903). 11 open-source boards in 7 repositories on GitHub use it.

Symbol

PA001PA012PA023PA034GNDANA5VDDANA6PB087PB098PA049PA0510PA0611PA0712PA0813PA0914PA1015PA1116VDDIO17GND18PB1019PB1120PA1221PA1322PA1423PA1524PA1625PA1726PA1827PA1928PA2029PA2130PA2231PA2332PA2433PA2534VDDIO36PB2237PB2338PA2739RESET40PA2841VDDCORE43VDDIN44PA3045PA3146PB0247PB0348EP49
MCU_Microchip_SAMD:ATSAMD21G18A-MFrom KiCad's library

Footprint

49
Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mmFrom KiCad's library

Parameters

13
ADC (Bit)
12bit
CPU Core
ARM Cortex-M0+
CPU Maximum Speed
48MHz
Core Size
32 Bit
DAC (Bit)
10bit
Features
Undervoltage detection (BOR/LVD/LVR/LVI)
Number of I/O
38
Operating Temperature
-40℃~+85℃
Oscillator Type
Built-in
Program Memory Type
FLASH
Program Storage Size
256KB
RAM Size
32KB
Voltage - Supply
1.62V~3.6V

Order codes

3

Pinout

49
The pins of the ATSAMD21G18A-MU
PinNameType
1PA00Input/output
2PA01Input/output
3PA02Input/output
4PA03Input/output
5GNDANAPower in
6VDDANAPower in
7PB08Input/output
8PB09Input/output
9PA04Input/output
10PA05Input/output
11PA06Input/output
12PA07Input/output
13PA08Input/output
14PA09Input/output
15PA10Input/output
16PA11Input/output
17VDDIOPower in
18GNDPower in
19PB10Input/output
20PB11Input/output
21PA12Input/output
22PA13Input/output
23PA14Input/output
24PA15Input/output
25PA16Input/output
26PA17Input/output
27PA18Input/output
28PA19Input/output
29PA20Input/output
30PA21Input/output
31PA22Input/output
32PA23Input/output
33PA24Input/output
34PA25Input/output
35GNDPassive
36VDDIOPower in
37PB22Input/output
38PB23Input/output
39PA27Input/output
40RESETInput
41PA28Input/output
42GNDPassive
43VDDCOREPower out
44VDDINPower in
45PA30Input/output
46PA31Input/output
47PB02Input/output
48PB03Input/output
49EPPassive

Open-source boards using it

All 11
  • 4 layers108 × 50 mmFED3, the printed circuit board in 3D

    FED3

    KravitzLabDevices/FED3

    Feeding Experimentation Device version 3

    114 parts36GPL-3.0
  • 2 layers142.7 × 72 mmBlinky bowtie, the printed circuit board in 3D

    Blinky bowtie

    joshajohnson/bsidescbr2021

    Slides and Design Files for BSides Canberra 2021

    101 parts5GPL-3.0
  • 2 layers60 × 165 mmFabMX keyPad, the printed circuit board in 3D

    FabMX keyPad

    fabXlabs/fabX_doorKeyPCB

    Outdoor Keypad and reader PCB

    115 partsCERN-OHL-S-2.0
  • 2 layersSAM21, the printed circuit board in 3D

    SAM21

    jayadevakash/SAM21

    IoTHive

    122 parts
  • 4 layers169.7 × 99.1 mmRemoteLabs supervisor PCB, the printed circuit board in 3D

    RemoteLabs supervisor PCB

    practable/supervisor-pcb

    Allow students to program a remote labs experiment themselves, while protecting hardware from damage due to misfunction

    201 parts
  • 4 layers108 × 50 mmFED3, the printed circuit board in 3D

    FED3

    KravitzLabDevices/FED3

    Feeding Experimentation Device version 3

    89 parts36GPL-3.0
  • 4 layers108 × 50 mmFED3, the printed circuit board in 3D

    FED3

    KravitzLabDevices/FED3

    Feeding Experimentation Device version 3

    96 parts36GPL-3.0
  • 4 layers108 × 50 mmFED3 v7.3, the printed circuit board in 3D

    FED3 v7.3

    KravitzLabDevices/FED3

    Feeding Experimentation Device version 3

    86 parts36GPL-3.0

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Questions

Is there a KiCad symbol and footprint for the ATSAMD21G18A-MU?

Yes. The symbol is MCU_Microchip_SAMD:ATSAMD21G18A-M and the footprint Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ATSAMD21G18A-MU?

QFN-48-EP(7x7), with 49 pins. Its footprint is drawn on this page.

Where is the ATSAMD21G18A-MU datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the ATSAMD21G18A-MU?

JLCPCB lists it as part C966903, with 2,823 in stock; the sellers' links on this page open their listings.

What can replace the ATSAMD21G18A-MU?

Parts like it in the library: the ATSAMD21G17D-MU by Microchip Technology, the MC9S08JM16CGT by NXP Semiconductors, the ATSAMD21G18A-MF by Microchip Technology and the ATSAMD21G17A-MU by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the ATSAMD21G18A-MU?

11 boards in 7 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8