ATMEGA48PB-AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega48pb-au",
  "title": "ATMEGA48PB-AU",
  "brief": "Microchip Tech ATMEL & AVR, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.1",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "embedded processors & controllers",
    "atmega48pb-au",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ATMEGA48PB-AU",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-32(7x7)",
    "pin_count": 32,
    "category": "Embedded Processors & Controllers",
    "subcategory": "ATMEL & AVR",
    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/40001910A.pdf",
    "parts": {
      "symbol": "atmega48pb-au.kicad_sym",
      "footprint": "atmega48pb-au.kicad_mod",
      "model_3d": "atmega48pb-au-hero.glb",
      "model_3d_plain": "atmega48pb-au.glb",
      "model_3d_step": "atmega48pb-au-etched.step",
      "model_3d_step_plain": "atmega48pb-au.step",
      "lbr": "atmega48pb-au.lbr"
    },
    "distributor_links": {
      "lcsc": "C177155",
      "digikey": "ATMEGA48PB-AU-ND",
      "mouser": "556-ATMEGA48PB-AU"
    },
    "distributor_check": {
      "checked_at": "2026-11-07T01:16:07Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATMEGA48PB-AU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATMEGA48PB-AU",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PD3",
        "type": "bidirectional",
        "description": "Port D bit 3, an I/O pin with selectable internal pull-up whose alternate functions are INT1, PCINT19 and OC2B."
      },
      {
        "number": "2",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Port D bit 4, an I/O pin with selectable internal pull-up whose alternate functions are PCINT20, T0 and XCK."
      },
      {
        "number": "3",
        "name": "PE0",
        "type": "bidirectional",
        "description": "Port E bit 0, an I/O pin with selectable internal pull-up whose alternate function is ACO (analog comparator output)."
      },
      {
        "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, a general purpose I/O pin with selectable internal pull-up."
      },
      {
        "number": "7",
        "name": "PB6",
        "type": "bidirectional",
        "description": "Port B bit 6, an I/O pin that can be input to the inverting oscillator amplifier and internal clock circuit (XTAL1) or TOSC1, with alternate function PCINT6."
      },
      {
        "number": "8",
        "name": "PB7",
        "type": "bidirectional",
        "description": "Port B bit 7, an I/O pin that can be output from the inverting oscillator amplifier (XTAL2) or TOSC2, with alternate function PCINT7."
      },
      {
        "number": "9",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Port D bit 5, an I/O pin with selectable internal pull-up whose alternate functions are PCINT21, OC0B and T1."
      },
      {
        "number": "10",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Port D bit 6, an I/O pin with selectable internal pull-up whose alternate functions are PCINT22, OC0A and AIN0."
      },
      {
        "number": "11",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Port D bit 7, an I/O pin with selectable internal pull-up whose alternate functions are PCINT23 and AIN1."
      },
      {
        "number": "12",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0, an I/O pin with selectable internal pull-up whose alternate functions are PCINT0, CLKO and ICP1."
      },
      {
        "number": "13",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1, an I/O pin with selectable internal pull-up whose alternate functions are PCINT1 and OC1A."
      },
      {
        "number": "14",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2, an I/O pin with selectable internal pull-up whose alternate functions are PCINT2, OC1B and SPI SS."
      },
      {
        "number": "15",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3, an I/O pin with selectable internal pull-up whose alternate functions are PCINT3, OC2A and SPI MOSI."
      },
      {
        "number": "16",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4, an I/O pin with selectable internal pull-up whose alternate functions are PCINT4 and SPI MISO."
      },
      {
        "number": "17",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5, an I/O pin with selectable internal pull-up whose alternate functions are PCINT5 and SPI SCK."
      },
      {
        "number": "18",
        "name": "AVCC",
        "type": "power_in",
        "description": "Supply voltage for the A/D converter, PC[3:0] and PE[3:2]; it must be connected to VCC even if the ADC is not used, and through a low-pass filter if the ADC is used."
      },
      {
        "number": "19",
        "name": "PE2",
        "type": "bidirectional",
        "description": "Port E bit 2, an I/O pin powered from AVCC that also serves as the ADC6 analog input (10-bit ADC channel)."
      },
      {
        "number": "20",
        "name": "AREF",
        "type": "input",
        "description": "Analog reference pin for the A/D converter; an external capacitor on it should be 100nF or larger per the errata."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "22",
        "name": "PE3",
        "type": "bidirectional",
        "description": "Port E bit 3, an I/O pin powered from AVCC that also serves as the ADC7 analog input (10-bit ADC channel)."
      },
      {
        "number": "23",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Port C bit 0, an I/O pin powered from AVCC whose alternate functions are PCINT8 and ADC0."
      },
      {
        "number": "24",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Port C bit 1, an I/O pin powered from AVCC whose alternate functions are PCINT9 and ADC1."
      },
      {
        "number": "25",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Port C bit 2, an I/O pin powered from AVCC whose alternate functions are PCINT10 and ADC2."
      },
      {
        "number": "26",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Port C bit 3, an I/O pin powered from AVCC whose alternate functions are PCINT11 and ADC3."
      },
      {
        "number": "27",
        "name": "PC4",
        "type": "bidirectional",
        "description": "Port C bit 4, an I/O pin powered from VCC whose alternate functions are PCINT12, ADC4 and TWI SDA."
      },
      {
        "number": "28",
        "name": "PC5",
        "type": "bidirectional",
        "description": "Port C bit 5, an I/O pin powered from VCC whose alternate functions are PCINT13, ADC5 and TWI SCL."
      },
      {
        "number": "29",
        "name": "PC6/RESET",
        "type": "bidirectional",
        "description": "Reset input when the RSTDISBL fuse is unprogrammed, where a low level longer than the minimum pulse length generates a reset; it is an I/O pin with PCINT14 when the fuse is programmed, and its electrical characteristics differ from the other Port C pins."
      },
      {
        "number": "30",
        "name": "PD0",
        "type": "bidirectional",
        "description": "Port D bit 0, an I/O pin with selectable internal pull-up whose alternate functions are PCINT16 and USART RXD."
      },
      {
        "number": "31",
        "name": "PD1",
        "type": "bidirectional",
        "description": "Port D bit 1, an I/O pin with selectable internal pull-up whose alternate functions are PCINT17 and USART TXD."
      },
      {
        "number": "32",
        "name": "PD2",
        "type": "bidirectional",
        "description": "Port D bit 2, an I/O pin with selectable internal pull-up whose alternate functions are INT0 and PCINT18."
      }
    ],
    "provenance": {
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      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The extracted figure text lists pin labels without printed pin numbers. Numbers were assigned from t; The text gives the label order only roughly for the AVCC, PE2, AREF, GND and PE3 group (pins 18-22),; PC6/RESET is typed bidirectional because it works as I/O or as Reset input depending on the RSTDISBL"
        ],
        "pages_sent": 14,
        "cost_usd": 0.1351,
        "at": "2026-11-07T01:15:54"
      },
      "datasheet": {
        "url": "https://ww1.microchip.com/downloads/en/DeviceDoc/40001910A.pdf",
        "pages": 32,
        "sha256": "43913b6d1b8d9ca9",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "sha256": "53431be61c684e9d923915676a90cb08050c23ee3f834d76a77a3b19b41422f1",
        "checked": "2026-11-07",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-32(7x7)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "32"
    },
    "characteristics": {
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      "rows": [
        {
          "name": "Operating voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
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          "min": 1.8,
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          "max": 5.5,
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          "source_page": 2,
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        {
          "name": "Operational temperature range (Industrial, AU ordering code)",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "Industrial (-40°C to +85°C) per ordering table for ATmega48PB-AU",
          "source_page": 7,
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        {
          "name": "Maximum operating frequency at 1.8-5.5 V",
          "symbol": "",
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          "max": 10,
          "conditions": "Speed grade 0 - 10MHz at 2.7-5.5V",
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        {
          "name": "Maximum operating frequency at 4.5-5.5 V",
          "symbol": "",
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        {
          "name": "Active mode current",
          "symbol": "",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 0.35,
          "max": null,
          "conditions": "Power consumption at 1MHz, 1.8V, 25°C; Active mode",
          "source_page": 2,
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        {
          "name": "Power-down mode current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.23,
          "max": null,
          "conditions": "Power consumption at 1MHz, 1.8V, 25°C; Power-down mode",
          "source_page": 2,
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        {
          "name": "Power-save mode current",
          "symbol": "",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 1.4,
          "conditions": "Power consumption at 1MHz, 1.8V, 25°C; Power-save mode (including 32kHz RTC)",
          "source_page": 2,
          "source": "datasheet"
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    }
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  "author": {
    "name": "Ray"
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  "description": "Microchip Tech ATMEL & AVR, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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