
DCA USMR sch
DarmorGamz/Ultrasonic-Flow-Reader
Discover the innovative Ultra Sonic Flow Reader, a non-invasive device that provides real-time water flow monitoring in pipes using ultrasonic waves.

Microchip Technology
-40℃~+105℃ 1.62V~3.6V 256KB 26 32 Bit 32KB 48MHz ARM Cortex-M0+ Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Built-in general-purpose timer、Hardware CRC、Calendar function、Touch function QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS
The ATSAMD20E18A-MN is a microcontroller made by Microchip Technology in a QFN-32 package with 33 pins. -40℃~+105℃ 1.62V~3.6V 256KB 26 32 Bit 32KB 48MHz ARM Cortex-M0+ Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Built-in general-purpose timer、Hardware CRC、Calendar function、Touch function QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ATSAMC21E16A-MNT, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-32_L5.0-W5.0-P0.50-TL-EP3.6, from EasyEDA), ready for a KiCad board. 5 are in stock at JLCPCB (part C614235). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | PA00 | Unspecified |
| 2 | PA01 | Unspecified |
| 3 | PA02 | Unspecified |
| 4 | PA03 | Unspecified |
| 5 | PA04 | Unspecified |
| 6 | PA05 | Unspecified |
| 7 | PA06 | Unspecified |
| 8 | PA07 | Unspecified |
| 9 | VDDANA | Unspecified |
| 10 | GND | Unspecified |
| 11 | PA08 | Unspecified |
| 12 | PA09 | Unspecified |
| 13 | PA10 | Unspecified |
| 14 | PA11 | Unspecified |
| 15 | PA14 | Unspecified |
| 16 | PA15 | Unspecified |
| 17 | PA16 | Unspecified |
| 18 | PA17 | Unspecified |
| 19 | PA18 | Unspecified |
| 20 | PA19 | Unspecified |
| 21 | PA22 | Unspecified |
| 22 | PA23 | Unspecified |
| 23 | PA24 | Unspecified |
| 24 | PA25 | Unspecified |
| 25 | PA27 | Unspecified |
| 26 | RESET# | Unspecified |
| 27 | PA28 | Unspecified |
| 28 | GND | Unspecified |
| 29 | VDDCORE | Unspecified |
| 30 | VDDIN | Unspecified |
| 31 | PA30 | Unspecified |
| 32 | PA31 | Unspecified |
| 33 | EP | Unspecified |

DarmorGamz/Ultrasonic-Flow-Reader
Discover the innovative Ultra Sonic Flow Reader, a non-invasive device that provides real-time water flow monitoring in pipes using ultrasonic waves.
<iframe src="https://pcbkit.io/embed/parts/microchip/ATSAMD20E18A-MN" title="ATSAMD20E18A-MN in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/ATSAMD20E18A-MN.jpg" alt="ATSAMD20E18A-MN" width="1200" height="900">[](https://pcbkit.io/parts/microchip/ATSAMD20E18A-MN)Yes. The symbol is EasyEDA_Cloud:ATSAMC21E16A-MNT and the footprint EasyEDA_Cloud:QFN-32_L5.0-W5.0-P0.50-TL-EP3.6, both drawn on this page. PCBKit places them on a board for you when you design with it.
QFN-32, with 33 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C614235, with 5 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the ATSAMC21E18A-MU by Microchip Technology, the ATSAMC21E15A-MU by Microchip Technology, the ATSAMD20E17A-MN by Microchip Technology and the ATSAMD20E15A-MU by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.