ATmega16U4-M
MCU_Microchip_ATmega
16MHz, 16kB Flash, 1.25kB SRAM, 512B EEPROM, USB 2.0, QFN-44
Symbol
45 pins
- Units
- 1
- Kind
- part
- Grid
- on 1.27 mm
Footprint
45 pads
- Library
- Package_DFN_QFN
- Mount
- smd
- Courtyard
- 8.26 × 8.26 mm
- Link
- exact
- Footprint page
- Open →
3D model
noneno 3D model
The footprint references no model, or the referenced model is not in the upstream package set.
Pins and pads
Every pin on the symbol has a pad on the footprint.
| Pin | Name | Type | Pad |
|---|---|---|---|
| 1 | PE6 | bidirectional | 1 |
| 2 | UVCC | power_in | 2 |
| 3 | D- | bidirectional | 3 |
| 4 | D+ | bidirectional | 4 |
| 5 | UGND | passive | 5 |
| 6 | UCAP | passive | 6 |
| 7 | VBUS | input | 7 |
| 8 | PB0 | bidirectional | 8 |
| 9 | PB1 | bidirectional | 9 |
| 10 | PB2 | bidirectional | 10 |
| 11 | PB3 | bidirectional | 11 |
| 12 | PB7 | bidirectional | 12 |
| 13 | ~{RESET} | input | 13 |
| 14 | VCC | power_in | 14 |
| 15 | GND | power_in | 15 |
| 16 | XTAL2 | output | 16 |
| 17 | XTAL1 | input | 17 |
| 18 | PD0 | bidirectional | 18 |
| 19 | PD1 | bidirectional | 19 |
| 20 | PD2 | bidirectional | 20 |
| 21 | PD3 | bidirectional | 21 |
| 22 | PD5 | bidirectional | 22 |
| 23 | GND | passive | 23 |
| 24 | AVCC | power_in | 24 |
| 25 | PD4 | bidirectional | 25 |
| 26 | PD6 | bidirectional | 26 |
| 27 | PD7 | bidirectional | 27 |
| 28 | PB4 | bidirectional | 28 |
| 29 | PB5 | bidirectional | 29 |
| 30 | PB6 | bidirectional | 30 |
| 31 | PC6 | bidirectional | 31 |
| 32 | PC7 | bidirectional | 32 |
| 33 | ~{HWB}/PE2 | bidirectional | 33 |
| 34 | VCC | passive | 34 |
| 35 | GND | passive | 35 |
| 36 | PF7 | bidirectional | 36 |
| 37 | PF6 | bidirectional | 37 |
| 38 | PF5 | bidirectional | 38 |
| 39 | PF4 | bidirectional | 39 |
| 40 | PF1 | bidirectional | 40 |
| 41 | PF0 | bidirectional | 41 |
| 42 | AREF | passive | 42 |
| 43 | GND | passive | 43 |
| 44 | AVCC | passive | 44 |
| 45 | GND | passive | 45 |
On real boards
20+ designs use this part
20 carry its footprint on a board, and no other part in the catalog uses that footprint. Largest first.
- Lo-Keyby footprint
- Frooastboard BOARD5by footprint
- UnluckyLamiaKeyboardby footprint
- Skeleton68by footprint
- Kbb Keyboard BOARD4by footprint
- 102orthoby footprint
- M0118 Integrated Usbby footprint
- Koalaficationsby footprint
- mfk60by footprint
- RPi Minikeyboardby footprint
- OpenTKLby footprint
- Kbb Keyboardby footprint
- Kbb Keyboard BOARD2by footprint
- DeWille BOARD2by footprint
- Skeleton68 BOARD2by footprint
- Nue 60% Universal PCBby footprint
- 2 Hedgehog Kbby footprint
- Lfn65v2 KeyboardPCBby footprint
- RAKENNUS60by footprint
- JAWS65 Hotswap PCBby footprint
Provenance
- Source
- kicad-symbols
- Credit
- KiCad Libraries Contributors
- Licence
- CC-BY-SA-4.0-with-KiCad-exception
- Link method
- exact
- Cross-check
- passed