![]() Given below is the datasheet of ATmega32u4 by Atmel. UCAP: It is a USB pad for the Internal Regulator Output supply voltage that should be connected to an external capacitor. UGND/UVCC: These are the USB pads for Input supply voltage. These should be connected to USB D-/D+ ports respectively with a 22-ohm resistor. During normal operation, it acts as a normal GPIO pin.ĭ-/D+: These pins are Data Upstream Positive/Negative USB full-speed or low-speed ports. HWB: HWB is a special pin that allows the user to execute the bootloader. XATL: These pins are for the inverting oscillator amplifier and also for the input of internal clock operation. ![]() If the ADC is used, then it should be connected to VCC through a low-pass filter.ĪREF: This is the analog reference input pin for the ADC If the ADC is not being used then it should be externally connected to VCC. Makes the job of the designers easy to connect multiple devicesĪVCC: AVCC is the input voltage supply pin for ADC channels.Multiple ground reduces overall inductance and internal resistance which helps in Heat dissipation, lowering current density to avoid damage.Many microcontrollers offer multiple ground pins because: According to the datasheet and pinout images found online, the pinout should be identical for the 328 and 328P chips. ![]() This was done by changing the ID for 328 to the ID of 328p in the nf file. GND: ATmega32U4 has 4 ground pins (15,23,35,43). I have uploaded the Atmega328P bootloader, so that I can use the arduino IDE and framework and libraries. These pins can give an output voltage in the range of 4.5-5.5 volts. Vcc: ATmega32U4 has 2 VCC pins: pin 14 and 34. Read also: ATmega328p Pinout, datasheet, and specifications Pin Description Pin Number Name Description 14,34 VCC Supply pins 15, 23, 35, 43 GND Ground pins 42 AREF Reference supply for ADC 24, 44 AVCC Supply pins for analog Peripherals 16, 17 XATL Crystal oscillators pins 13 RESET Reset pins 33 PE2 HWB 10, 11 PB2,PB3 MISO, MOSI 4 D+ RD+ 3 D- RD- 8 PB0 RXLED 22 PD5 TXLED 5 UGnd UGND 2 UVcc +5V 6 Ucap UCAP 7 VUSB Vbus 20 PD2 Digital Pin (RX) 21 PD3 Digital Pin (TX) 18 PD0 Digital Pin (PWM, SCL) 19 PD1 Digital Pin (SDA) 1, 25, 26, 28 PE6, PD4, PD6, PB4 Digital Pins 12, 27, 29-32 PB7, PD7, PB5, PB6, PB6, PB7 Digital Pins (PWM) 36-41 PF7-PF0 Analog Pins ATmega32u4 Pinout The complete pinout is given in the table below. Out of these 14 digital pins 7 can be used as PWM pins, 4 SPI pins, 1 I2C peripheral, and 1 UART port (2Pins). ATmega32U4 has a total of 44 pins, of which 6 are analog input, and 14 are digital pins.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |