ATMEGA328P PU AVR Microcontroller PDIP-28

8-bit AVR microcontroller with 32KB Flash, 2KB SRAM, and 1KB EEPROM in PDIP-28 package; the MCU used on Arduino Uno. KiCad package CAD included; 3D model represents package envelope only.

Pinout

Logical pinout · physical placement not verified
ATMEGA328P PU AVR MICRPC6 (RESETPCINT14)PB1 (OC1APCINT1)PD0 (RXDPCINT16)PB2 (SSOC1BPCINT2)PD1 (TXDPCINT17)PB3 (MOSIOC2APCINT3)PD2 (INT0PCINT18)PB4 (MISOPCINT4)PD3 (INT1OC2BPCINT19)PB5 (SCKPCINT5)PD4 (T0XCKPCINT20)AVCCVCCAREFGNDGNDPB6 (XTAL1TOSC1PCINT6)PC0 (ADC0PCINT8)PB7 (XTAL2TOSC2PCINT7)PC1 (ADC1PCINT9)PD5 (T1OC0BPCINT21)PC2 (ADC2PCINT10)PD6 (AIN0OC0APCINT22)PC3 (ADC3PCINT11)PD7 (AIN1PCINT23)PC4 (ADC4SDAPCINT12)PB0 (ICP1CLKOPCINT0)PC5 (ADC5SCLPCINT13)
  • PC6 (RESETPCINT14)1
    Type · Control
  • PD0 (RXDPCINT16)2
    Type · Signal
  • PD1 (TXDPCINT17)3
    Type · Signal
  • PD2 (INT0PCINT18)4
    Type · Signal
  • PD3 (INT1OC2BPCINT19)5
    Type · Signal
  • PD4 (T0XCKPCINT20)6
    Type · Signal
  • VCC7
    Type · Power
  • GND8
    Type · Ground
  • PB6 (XTAL1TOSC1PCINT6)9
    Type · Signal
  • PB7 (XTAL2TOSC2PCINT7)10
    Type · Signal
  • PD5 (T1OC0BPCINT21)11
    Type · Signal
  • PD6 (AIN0OC0APCINT22)12
    Type · Signal
  • PD7 (AIN1PCINT23)13
    Type · Signal
  • PB0 (ICP1CLKOPCINT0)14
    Type · Signal
  • PB1 (OC1APCINT1)15
    Type · Signal
  • PB2 (SSOC1BPCINT2)16
    Type · Signal
  • PB3 (MOSIOC2APCINT3)17
    Type · Signal
  • PB4 (MISOPCINT4)18
    Type · Signal
  • PB5 (SCKPCINT5)19
    Type · Signal
  • AVCC20
    Type · Power
  • AREF21
    Type · Analog
  • GND22
    Type · Ground
  • PC0 (ADC0PCINT8)23
    Type · Signal
  • PC1 (ADC1PCINT9)24
    Type · Signal
  • PC2 (ADC2PCINT10)25
    Type · Signal
  • PC3 (ADC3PCINT11)26
    Type · Signal
  • PC4 (ADC4SDAPCINT12)27
    Type · I2C, Signal
  • PC5 (ADC5SCLPCINT13)28
    Type · I2C, Signal

Bare ICs

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74HC logic gates, MCP3008/MCP23017 ADCs and expanders, 24LC256 EEPROM, 4N25-series optocouplers and ULN2803A drivers — bare DIP chips with no breakout-board conveniences like pull-ups or level shifting.

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Related groups

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