
Overview
The ATSAMD21E16A-MU is a microcontroller made by Microchip Technology in a QFN-32-EP(5x5) package with 33 pins. QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_SAMD:ATSAMD21E16A-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. JLCPCB lists it (part C3034011).
Symbol
Footprint
Order codes
1- ATSAMD21E16A-MULCSC C3034011
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 |
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Is there a KiCad symbol and footprint for the ATSAMD21E16A-MU?
Yes. The symbol is MCU_Microchip_SAMD:ATSAMD21E16A-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 ATSAMD21E16A-MU?
QFN-32-EP(5x5), with 33 pins. Its footprint is drawn on this page.
Where can I order the ATSAMD21E16A-MU?
JLCPCB lists it as part C3034011, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ATSAMD21E16A-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.
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