ATMEGA328PB-AUR

{
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  "type": "component",
  "slug": "atmega328pb-aur",
  "title": "ATMEGA328PB-AUR",
  "brief": "Microchip Tech MICROCHIP, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
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    "embedded processors & controllers",
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  "component": {
    "mpn": "ATMEGA328PB-AUR",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "MICROCHIP",
    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/40001907A.pdf",
    "parts": {
      "symbol": "atmega328pb-aur.kicad_sym",
      "footprint": "atmega328pb-aur.kicad_mod",
      "model_3d": "atmega328pb-aur-hero.glb",
      "model_3d_plain": "atmega328pb-aur-etched.glb",
      "model_3d_step": "atmega328pb-aur-etched.step",
      "model_3d_step_plain": "atmega328pb-aur.step",
      "lbr": "atmega328pb-aur.lbr"
    },
    "distributor_links": {
      "lcsc": "C461612",
      "digikey": "ATMEGA328PB-AURTR-ND",
      "mouser": "556-ATMEGA328PB-AUR"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T06:46:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATMEGA328PB-AURTR-ND",
        "status": "found"
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        "pn": "556-ATMEGA328PB-AUR",
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    },
    "pins": [
      {
        "number": "1",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Port D bit 3 is a bidirectional I/O pin with internal pull-up, also usable as external interrupt INT1, Timer 2 output OC2B, or PTC X/Y sensor line."
      },
      {
        "number": "2",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Port D bit 4 is a bidirectional I/O pin with internal pull-up, also usable as USART0 clock XCK0, Timer/Counter0 external clock T0, or PTC sensor line."
      },
      {
        "number": "3",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Port E bit 0 is a bidirectional I/O pin with internal pull-up, also usable as Timer 4 input capture ICP4, TWI1 data SDA1, analog comparator output ACO, or PTC sensor line."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "PE1",
        "type": "bidirectional",
        "description": "Port E bit 1 is a bidirectional I/O pin with internal pull-up, also usable as TWI1 clock SCL1, Timer/Counter4 external clock T4, or PTC sensor line."
      },
      {
        "number": "7",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Port B bit 6 is an I/O pin that, depending on clock fuse settings, serves as input to the inverting oscillator amplifier and internal clock circuit (XTAL1/TOSC1)."
      },
      {
        "number": "8",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Port B bit 7 is an I/O pin that, depending on clock fuse settings, serves as output from the inverting oscillator amplifier (XTAL2/TOSC2)."
      },
      {
        "number": "9",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Port D bit 5 is a bidirectional I/O pin with internal pull-up, also usable as Timer/Counter0 output OC0B, Timer/Counter1 external clock T1, or PTC sensor line."
      },
      {
        "number": "10",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Port D bit 6 is a bidirectional I/O pin with internal pull-up, also usable as Timer/Counter0 output OC0A, analog comparator positive input AIN0, or PTC sensor line."
      },
      {
        "number": "11",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Port D bit 7 is a bidirectional I/O pin with internal pull-up, also usable as analog comparator negative input AIN1 or PTC sensor line."
      },
      {
        "number": "12",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 is a bidirectional I/O pin with internal pull-up, also usable as Timer 1 input capture ICP1, clock output CLKO, or PTC sensor line."
      },
      {
        "number": "13",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 is a bidirectional I/O pin with internal pull-up, also usable as Timer/Counter1 output OC1A or PTC sensor line."
      },
      {
        "number": "14",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 is a bidirectional I/O pin with internal pull-up, also usable as Timer/Counter1 output OC1B, SPI0 slave select SS0, or PTC sensor line."
      },
      {
        "number": "15",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 is a bidirectional I/O pin with internal pull-up, also usable as Timer 2 output OC2A, USART1 transmit TXD1, SPI0 MOSI, or PTC sensor line."
      },
      {
        "number": "16",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4 is a bidirectional I/O pin with internal pull-up, also usable as SPI0 MISO, USART1 receive RXD1, or PTC sensor line."
      },
      {
        "number": "17",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5 is a bidirectional I/O pin with internal pull-up, also usable as SPI0 clock SCK0, USART1 clock XCK1, or PTC sensor line."
      },
      {
        "number": "18",
        "name": "AVCC",
        "type": "power_in",
        "description": "Supply voltage pin for the A/D converter, PC[3:0] and PE[3:2], which should be connected to VCC even if the ADC is not used."
      },
      {
        "number": "19",
        "name": "PE2",
        "type": "bidirectional",
        "description": "Port E bit 2 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 6, Timer 3 input capture ICP3, SPI1 slave select SS1, or PTC sensor line."
      },
      {
        "number": "20",
        "name": "AREF",
        "type": "passive",
        "description": "Analog reference pin for the A/D converter."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "22",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Port E bit 3 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 7, Timer/Counter3 external clock T3, SPI1 MOSI, or PTC sensor line."
      },
      {
        "number": "23",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Port C bit 0 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 0, SPI1 MISO, or PTC sensor line."
      },
      {
        "number": "24",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Port C bit 1 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 1, SPI1 clock SCK1, or PTC sensor line."
      },
      {
        "number": "25",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Port C bit 2 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 2 or PTC sensor line."
      },
      {
        "number": "26",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Port C bit 3 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 3 or PTC sensor line."
      },
      {
        "number": "27",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Port C bit 4 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 4, TWI0 data SDA0, or PTC sensor line; it uses the digital supply VCC."
      },
      {
        "number": "28",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Port C bit 5 is a bidirectional I/O pin with internal pull-up, also usable as ADC analog input channel 5, TWI0 clock SCL0, or PTC sensor line; it uses the digital supply VCC."
      },
      {
        "number": "29",
        "name": "PC6/RESET",
        "type": "input",
        "description": "Active-low reset input when the RSTDISBL fuse is unprogrammed; a low level longer than the minimum pulse length generates a Reset, while if the fuse is programmed it is an I/O pin with electrical characteristics differing from other Port C pins."
      },
      {
        "number": "30",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Port D bit 0 is a bidirectional I/O pin with internal pull-up, also usable as Timer 3 output OC3A, USART0 receive RXD0, or PTC sensor line."
      },
      {
        "number": "31",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Port D bit 1 is a bidirectional I/O pin with internal pull-up, also usable as Timer 4 output OC4A, USART0 transmit TXD0, or PTC sensor line."
      },
      {
        "number": "32",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Port D bit 2 is a bidirectional I/O pin with internal pull-up, also usable as external interrupt INT0, Timer 3 output OC3B, Timer 4 output OC4B, or PTC sensor line."
      }
    ],
    "provenance": {
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        "cost_usd": 0.002,
        "at": "2026-10-27T06:45:54"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
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        "refuses_to_fabricate": true
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  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    },
    "characteristics": {
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          "name": "Operational temperature range",
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          "name": "Active mode current",
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