2 layers101.6 × 53.3 mm
ATMEGA16U2-MU
Microchip TechnologyExtended
-40℃~+85℃ 16KB 16MHz 2.7V~5.5V 22 512Byte 512Byte 8 Bit AVR Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS
- Part id
- microchip/ATMEGA16U2-MU
- Category
- Microcontrollers (MCU, MPU, SOC)
- Package
- QFN-32-EP(5x5)
- Pins
- 33
- In stock
- 24 at JLCPCB (C17317)
- Used on
- 47 open-source boards
Overview
The ATMEGA16U2-MU is a microcontroller made by Microchip Technology in a QFN-32-EP(5x5) package with 33 pins. -40℃~+85℃ 16KB 16MHz 2.7V~5.5V 22 512Byte 512Byte 8 Bit AVR Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_ATmega:ATmega16U2-M, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, from KiCad's library), ready for a KiCad board. 24 are in stock at JLCPCB (part C17317). 47 open-source boards in 43 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
4- Supply, least
- 2.7 V · VCC, recommended operating, min · p. 1
- Supply, most
- 5.5 V · VCC, recommended operating, max · p. 1
- Works from
- -40 °C · industrial operating ambient, min · p. 1
- Works up to
- 85 °C · industrial operating ambient, max · p. 1
Pinout
33| Pin | Name | Type |
|---|---|---|
| 1 | XTAL1 | Input |
| 2 | PC0/XTAL2 | Input/output |
| 3 | GND | Power in |
| 4 | VCC | Power in |
| 5 | PC2 | Input/output |
| 6 | PD0 | Input/output |
| 7 | PD1 | Input/output |
| 8 | PD2 | Input/output |
| 9 | PD3 | Input/output |
| 10 | PD4 | Input/output |
| 11 | PD5 | Input/output |
| 12 | PD6 | Input/output |
| 13 | HWB/PD7 | Input/output |
| 14 | PB0 | Input/output |
| 15 | PB1 | Input/output |
| 16 | PB2 | Input/output |
| 17 | PB3 | Input/output |
| 18 | PB4 | Input/output |
| 19 | PB5 | Input/output |
| 20 | PB6 | Input/output |
| 21 | PB7 | Input/output |
| 22 | PC7 | Input/output |
| 23 | PC6 | Input/output |
| 24 | PC1/RESET | Input/output |
| 25 | PC5 | Input/output |
| 26 | PC4 | Input/output |
| 27 | UCAP | Passive |
| 28 | UGND | Power in |
| 29 | D+ | Input/output |
| 30 | D- | Input/output |
| 31 | UVCC | Power in |
| 32 | AVCC | Power in |
| 33 | GND | Passive |
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Questions
Is there a KiCad symbol and footprint for the ATMEGA16U2-MU?
Yes. The symbol is MCU_Microchip_ATmega:ATmega16U2-M and the footprint Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ATMEGA16U2-MU?
QFN-32-EP(5x5), with 33 pins. Its footprint is drawn on this page.
Where is the ATMEGA16U2-MU datasheet?
Microchip Technology publishes it: the Datasheet link on this page opens it.
Where can I order the ATMEGA16U2-MU?
JLCPCB lists it as part C17317, with 24 in stock; the sellers' links on this page open their listings.
What can replace the ATMEGA16U2-MU?
Parts like it in the library: the ATMEGA328P-MUR by Microchip Technology, the ATMEGA88PA-MU by Microchip Technology, the ATMEGA168PA-MU by Microchip Technology and the ATMEGA328PB-MN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ATMEGA16U2-MU?
47 boards in 43 repositories on GitHub; the most starred are listed on this page, with their KiCad files.