

Overview
The ATSAMD21E15B-MU is a microcontroller made by Microchip Technology in a QFN-32 package with 33 pins. -40℃~+85℃ 1.62V~3.6V 26 32 Bit 32KB 48MHz 4KB ARM Cortex-M0+ Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_SAMD:ATSAMD21E15B-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm, from KiCad's library), ready for a KiCad board. 8 are in stock at JLCPCB (part C614238). 3 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
17- ADC (Bit)
- 12bit
- CPU Core
- ARM Cortex-M0+
- CPU Maximum Speed
- 48MHz
- Core Size
- 32 Bit
- DAC (Bit)
- 10bit
- Direct Memory Access
- 有
- Features
- Power-on reset (POR)
- Internal Oscillator
- 有
- Number of I/O
- 26
- Operating Temperature
- -40℃~+85℃
- Oscillator Type
- Built-in
- Peripheral/Function
- DMA;WDT;LIN总线协议
- Program Memory Type
- FLASH
- Program Storage Size
- 32KB
- RAM Size
- 4KB
- Voltage - Supply
- 1.62V~3.6V
- Watchdog
- 有
Order codes
4- ATSAMD21E15B-MULCSC C1337174
- ATSAMD21E15B-MUTLCSC C2053141
- ATSAMD21E15B-MULCSC C614238
- ATSAMD21E15B-MUTLCSC C614297
Pinout
33| Pin | Name | Type |
|---|---|---|
| 1 | PA00 | Input/output |
| 2 | PA01 | Input/output |
| 3 | PA02 | Input/output |
| 4 | PA03 | Input/output |
| 5 | PA04 | Input/output |
| 6 | PA05 | Input/output |
| 7 | PA06 | Input/output |
| 8 | PA07 | Input/output |
| 9 | VDDANA | Power in |
| 10 | GND | Power in |
| 11 | PA08 | Input/output |
| 12 | PA09 | Input/output |
| 13 | PA10 | Input/output |
| 14 | PA11 | Input/output |
| 15 | PA14 | Input/output |
| 16 | PA15 | Input/output |
| 17 | PA16 | Input/output |
| 18 | PA17 | Input/output |
| 19 | PA18 | Input/output |
| 20 | PA19 | Input/output |
| 21 | PA22 | Input/output |
| 22 | PA23 | Input/output |
| 23 | PA24 | Input/output |
| 24 | PA25 | Input/output |
| 25 | PA27 | Input/output |
| 26 | RESET | Input |
| 27 | PA28 | Input/output |
| 28 | GND | Passive |
| 29 | VDDCORE | Power out |
| 30 | VDDIN | Power in |
| 31 | PA30 | Input/output |
| 32 | PA31 | Input/output |
| 33 | EP | Passive |
Open-source boards using it
All 3- 6 layers48.5 × 50 mm

- 2 layers41.3 × 31.8 mm

Smd challenge
mokomull/smd-challenge
SMD circuit board with 1206, 0805, 0603, 0402 and 0201 LEDs
26 parts1 - 2 layers44.3 × 48.8 mm

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Is there a KiCad symbol and footprint for the ATSAMD21E15B-MU?
Yes. The symbol is MCU_Microchip_SAMD:ATSAMD21E15B-M and the footprint Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.6x3.6mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATSAMD21E15B-MU?
QFN-32, with 33 pins. Its footprint is drawn on this page.
Where is the ATSAMD21E15B-MU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the ATSAMD21E15B-MU?
JLCPCB lists it as part C614238, with 8 in stock; the sellers' links on this page open their listings.
What can replace the ATSAMD21E15B-MU?
Parts like it in the library: the ATSAMD21E18A-MUT by Microchip Technology, the ATSAML21E18B-MU by Microchip Technology, the ATSAMD21E16B-MU by Microchip Technology and the ATSAMD21E17D-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 ATSAMD21E15B-MU?
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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