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ATmega16U4RC-M
16MHz, 16kB Flash, 1.25kB SRAM, 512B EEPROM, USB 2.0, RC Osc, QFN-44
Schematic Symbol
Pin Configuration (45 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | PE6 | bidirectional |
| 2 | UVCC | power_in |
| 3 | D- | bidirectional |
| 4 | D+ | bidirectional |
| 5 | UGND | passive |
| 6 | UCAP | passive |
| 7 | VBUS | input |
| 8 | PB0 | bidirectional |
| 9 | PB1 | bidirectional |
| 10 | PB2 | bidirectional |
| 11 | PB3 | bidirectional |
| 12 | PB7 | bidirectional |
| 13 | ~{RESET} | input |
| 14 | VCC | power_in |
| 15 | GND | power_in |
| 16 | XTAL2 | output |
| 17 | XTAL1 | input |
| 18 | PD0 | bidirectional |
| 19 | PD1 | bidirectional |
| 20 | PD2 | bidirectional |
| 21 | PD3 | bidirectional |
| 22 | PD5 | bidirectional |
| 23 | GND | passive |
| 24 | AVCC | power_in |
| 25 | PD4 | bidirectional |
| 26 | PD6 | bidirectional |
| 27 | PD7 | bidirectional |
| 28 | PB4 | bidirectional |
| 29 | PB5 | bidirectional |
| 30 | PB6 | bidirectional |
| 31 | PC6 | bidirectional |
| 32 | PC7 | bidirectional |
| 33 | ~{HWB}/PE2 | bidirectional |
| 34 | VCC | passive |
| 35 | GND | passive |
| 36 | PF7 | bidirectional |
| 37 | PF6 | bidirectional |
| 38 | PF5 | bidirectional |
| 39 | PF4 | bidirectional |
| 40 | PF1 | bidirectional |
| 41 | PF0 | bidirectional |
| 42 | AREF | passive |
| 43 | GND | passive |
| 44 | AVCC | passive |
| 45 | GND | passive |
Footprint
ConfirmedPackage_DFN_QFN/QFN-44-1EP_7x7mm_P0.5mm_EP5.2x5.2mm
Pad Layout
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Pads (61)
| Number | Type |
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| — | smd |
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