ATMEGA88PA-AU

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega88pa-au",
  "title": "ATMEGA88PA-AU",
  "brief": "Microchip Microcontrollers (MCU/MPU/SOC), TQFP-32(7x7). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "mcu",
    "atmega88pa-au"
  ],
  "component": {
    "mpn": "ATMEGA88PA-AU",
    "manufacturer": "Microchip",
    "package": "TQFP-32(7x7)",
    "pin_count": 32,
    "category": "MCU",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/6a24f954cb8d4091a71a5b765a32cb3b.pdf",
    "parts": {
      "symbol": "atmega88pa-au.kicad_sym",
      "footprint": "atmega88pa-au.kicad_mod",
      "model_3d": "atmega88pa-au-etched.glb",
      "model_3d_plain": "atmega88pa-au.glb",
      "model_3d_step": "atmega88pa-au-etched.step",
      "model_3d_step_plain": "atmega88pa-au.step",
      "lbr": "atmega88pa-au.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "PD3/PCINT19/OC2B/INT1",
        "type": "bidirectional",
        "description": "Port D bit 3. Alt: external interrupt INT1, Timer/Counter2 compare match B output OC2B, pin-change interrupt PCINT19."
      },
      {
        "number": "2",
        "name": "PD4/PCINT20/XCK/T0",
        "type": "bidirectional",
        "description": "Port D bit 4. Alt: USART external clock XCK, Timer/Counter0 external counter input T0, pin-change interrupt PCINT20."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage, 1.8-5.5 V."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage, 1.8-5.5 V."
      },
      {
        "number": "7",
        "name": "PB6/PCINT6/XTAL1/TOSC1",
        "type": "bidirectional",
        "description": "Port B bit 6. Alt: crystal oscillator input XTAL1 or 32 kHz Timer2 oscillator input TOSC1, pin-change interrupt PCINT6. Function selected by CKSEL/AS2 fuses."
      },
      {
        "number": "8",
        "name": "PB7/PCINT7/XTAL2/TOSC2",
        "type": "bidirectional",
        "description": "Port B bit 7. Alt: crystal oscillator output XTAL2 or 32 kHz Timer2 oscillator output TOSC2, pin-change interrupt PCINT7."
      },
      {
        "number": "9",
        "name": "PD5/PCINT21/OC0B/T1",
        "type": "bidirectional",
        "description": "Port D bit 5. Alt: Timer/Counter0 compare match B output OC0B, Timer/Counter1 external counter input T1, pin-change interrupt PCINT21."
      },
      {
        "number": "10",
        "name": "PD6/PCINT22/OC0A/AIN0",
        "type": "bidirectional",
        "description": "Port D bit 6. Alt: Timer/Counter0 compare match A output OC0A, analog comparator positive input AIN0, pin-change interrupt PCINT22."
      },
      {
        "number": "11",
        "name": "PD7/PCINT23/AIN1",
        "type": "bidirectional",
        "description": "Port D bit 7. Alt: analog comparator negative input AIN1, pin-change interrupt PCINT23."
      },
      {
        "number": "12",
        "name": "PB0/PCINT0/CLKO/ICP1",
        "type": "bidirectional",
        "description": "Port B bit 0. Alt: divided system clock output CLKO, Timer/Counter1 input capture ICP1, pin-change interrupt PCINT0."
      },
      {
        "number": "13",
        "name": "PB1/PCINT1/OC1A",
        "type": "bidirectional",
        "description": "Port B bit 1. Alt: Timer/Counter1 compare match A output OC1A, pin-change interrupt PCINT1."
      },
      {
        "number": "14",
        "name": "PB2/PCINT2/SS/OC1B",
        "type": "bidirectional",
        "description": "Port B bit 2. Alt: SPI slave-select SS, Timer/Counter1 compare match B output OC1B, pin-change interrupt PCINT2."
      },
      {
        "number": "15",
        "name": "PB3/PCINT3/OC2A/MOSI",
        "type": "bidirectional",
        "description": "Port B bit 3. Alt: SPI master-out/slave-in MOSI, Timer/Counter2 compare match A output OC2A, pin-change interrupt PCINT3."
      },
      {
        "number": "16",
        "name": "PB4/PCINT4/MISO",
        "type": "bidirectional",
        "description": "Port B bit 4. Alt: SPI master-in/slave-out MISO, pin-change interrupt PCINT4."
      },
      {
        "number": "17",
        "name": "PB5/SCK/PCINT5",
        "type": "bidirectional",
        "description": "Port B bit 5. Alt: SPI serial clock SCK, pin-change interrupt PCINT5."
      },
      {
        "number": "18",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply pin for the A/D converter, PC3:0 and ADC7:6. Must be connected to VCC (through an LC filter when ADC is used)."
      },
      {
        "number": "19",
        "name": "ADC6",
        "type": "input",
        "description": "Analog input channel 6 to the 10-bit A/D converter. Available only on TQFP and QFN/MLF packages; powered from the analog supply."
      },
      {
        "number": "20",
        "name": "AREF",
        "type": "passive",
        "description": "Analog reference input for the A/D converter. Decouple to AGND with 100 nF."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Analog/digital ground (shared)."
      },
      {
        "number": "22",
        "name": "ADC7",
        "type": "input",
        "description": "Analog input channel 7 to the 10-bit A/D converter. Available only on TQFP and QFN/MLF packages; powered from the analog supply."
      },
      {
        "number": "23",
        "name": "PC0/ADC0/PCINT8",
        "type": "bidirectional",
        "description": "Port C bit 0. Alt: A/D converter channel 0 input, pin-change interrupt PCINT8."
      },
      {
        "number": "24",
        "name": "PC1/ADC1/PCINT9",
        "type": "bidirectional",
        "description": "Port C bit 1. Alt: A/D converter channel 1 input, pin-change interrupt PCINT9."
      },
      {
        "number": "25",
        "name": "PC2/ADC2/PCINT10",
        "type": "bidirectional",
        "description": "Port C bit 2. Alt: A/D converter channel 2 input, pin-change interrupt PCINT10."
      },
      {
        "number": "26",
        "name": "PC3/ADC3/PCINT11",
        "type": "bidirectional",
        "description": "Port C bit 3. Alt: A/D converter channel 3 input, pin-change interrupt PCINT11."
      },
      {
        "number": "27",
        "name": "PC4/ADC4/SDA/PCINT12",
        "type": "bidirectional",
        "description": "Port C bit 4. Alt: TWI (I2C) serial data SDA, A/D converter channel 4 input, pin-change interrupt PCINT12. Open-drain when TWI enabled."
      },
      {
        "number": "28",
        "name": "PC5/ADC5/SCL/PCINT13",
        "type": "bidirectional",
        "description": "Port C bit 5. Alt: TWI (I2C) serial clock SCL, A/D converter channel 5 input, pin-change interrupt PCINT13. Open-drain when TWI enabled."
      },
      {
        "number": "29",
        "name": "PC6/RESET/PCINT14",
        "type": "input",
        "description": "Active-low reset input when RSTDISBL fuse is unprogrammed (default). A low level longer than the minimum pulse length generates a reset. If RSTDISBL is programmed, PC6 becomes a general-purpose I/O pin (with different electrical characteristics from other Port C pins)."
      },
      {
        "number": "30",
        "name": "PD0/RXD/PCINT16",
        "type": "bidirectional",
        "description": "Port D bit 0. Alt: USART receive data input RXD, pin-change interrupt PCINT16."
      },
      {
        "number": "31",
        "name": "PD1/TXD/PCINT17",
        "type": "bidirectional",
        "description": "Port D bit 1. Alt: USART transmit data output TXD, pin-change interrupt PCINT17."
      },
      {
        "number": "32",
        "name": "PD2/INT0/PCINT18",
        "type": "bidirectional",
        "description": "Port D bit 2. Alt: external interrupt INT0, pin-change interrupt PCINT18."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/6a24f954cb8d4091a71a5b765a32cb3b.pdf",
        "pages": 31,
        "sha256": "194fdd0f35c63d3b",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 32,
        "described": 32,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "atmega88pa-au.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "53431be61c684e9d923915676a90cb08050c23ee3f834d76a77a3b19b41422f1",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "atmega88pa-au-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "1293b74bcc5c099a24ab439bc8ee143ec7085601aff82548c7032a0207d49f87",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip",
      "Package": "TQFP-32(7x7)",
      "Category": "MCU",
      "Pins": "32"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "atmega88pa-au"
  ],
  "discovery_pitch": "ATMEGA88PA-AU (Microchip) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "atmega88pa-au.kicad_sym",
    "atmega88pa-au.kicad_mod",
    "atmega88pa-au.glb",
    "atmega88pa-au.step",
    "atmega88pa-au-etched.step",
    "atmega88pa-au.lbr",
    "docs/hero.png",
    "docs/atmega88pa-au-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:18:18.409Z"
}