ATMEGA168-15AD

{
  "schema_version": 1,
  "type": "component",
  "slug": "atmega168-15ad",
  "title": "ATMEGA168-15AD",
  "brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-32(7x7). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "atmega168-15ad"
  ],
  "component": {
    "mpn": "ATMEGA168-15AD",
    "manufacturer": "Microchip Tech",
    "package": "TQFP-32(7x7)",
    "pin_count": 32,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588950694577778688",
    "parts": {
      "symbol": "atmega168-15ad.kicad_sym",
      "footprint": "atmega168-15ad.kicad_mod",
      "model_3d": "atmega168-15ad-etched.glb",
      "model_3d_plain": "atmega168-15ad.glb",
      "model_3d_step": "atmega168-15ad-etched.step",
      "model_3d_step_plain": "atmega168-15ad.step",
      "lbr": "atmega168-15ad.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "PD3/PCINT19/OC2B/INT1",
        "type": "bidirectional",
        "description": "Port D bit 3. Alternate functions: pin-change interrupt 19 (PCINT19), Timer/Counter2 output-compare match B (OC2B, PWM), external interrupt 1 (INT1)."
      },
      {
        "number": "2",
        "name": "PD4/PCINT20/XCK/T0",
        "type": "bidirectional",
        "description": "Port D bit 4. Alt: PCINT20, USART external clock (XCK), Timer/Counter0 external counter input (T0)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground reference (0 V)."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage, 2.7-5.5 V. Decouple to GND with 100 nF close to the pin."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Digital ground reference (0 V). Second GND pin for the digital rail."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage, 2.7-5.5 V. Second VCC pin; tie to same rail as pin 4."
      },
      {
        "number": "7",
        "name": "PB6/PCINT6/XTAL1/TOSC1",
        "type": "bidirectional",
        "description": "Port B bit 6. Alt: PCINT6; crystal oscillator input (XTAL1) when external crystal is fuse-selected; asynchronous Timer/Counter2 osc input (TOSC1) when internal RC is selected and AS2=1."
      },
      {
        "number": "8",
        "name": "PB7/PCINT7/XTAL2/TOSC2",
        "type": "bidirectional",
        "description": "Port B bit 7. Alt: PCINT7; crystal oscillator output (XTAL2); Timer/Counter2 async osc pin (TOSC2)."
      },
      {
        "number": "9",
        "name": "PD5/PCINT21/OC0B/T1",
        "type": "bidirectional",
        "description": "Port D bit 5. Alt: PCINT21, Timer/Counter0 output-compare B (OC0B, PWM), Timer/Counter1 external counter input (T1)."
      },
      {
        "number": "10",
        "name": "PD6/PCINT22/OC0A/AIN0",
        "type": "bidirectional",
        "description": "Port D bit 6. Alt: PCINT22, Timer/Counter0 output-compare A (OC0A, PWM), analog-comparator positive input (AIN0)."
      },
      {
        "number": "11",
        "name": "PD7/PCINT23/AIN1",
        "type": "bidirectional",
        "description": "Port D bit 7. Alt: PCINT23, analog-comparator negative input (AIN1)."
      },
      {
        "number": "12",
        "name": "PB0/PCINT0/CLKO/ICP1",
        "type": "bidirectional",
        "description": "Port B bit 0. Alt: PCINT0, divided system clock output (CLKO, CKOUT fuse), Timer/Counter1 input-capture (ICP1)."
      },
      {
        "number": "13",
        "name": "PB1/PCINT1/OC1A",
        "type": "bidirectional",
        "description": "Port B bit 1. Alt: PCINT1, Timer/Counter1 output-compare A (OC1A, PWM)."
      },
      {
        "number": "14",
        "name": "PB2/PCINT2/SS/OC1B",
        "type": "bidirectional",
        "description": "Port B bit 2. Alt: PCINT2, SPI slave-select (SS, active-low; also selects master mode when configured as output), Timer/Counter1 output-compare B (OC1B, PWM)."
      },
      {
        "number": "15",
        "name": "PB3/PCINT3/OC2A/MOSI",
        "type": "bidirectional",
        "description": "Port B bit 3. Alt: PCINT3, Timer/Counter2 output-compare A (OC2A, PWM), SPI master-out/slave-in (MOSI) - also serial-programming data in (PDI/MOSI)."
      },
      {
        "number": "16",
        "name": "PB4/PCINT4/MISO",
        "type": "bidirectional",
        "description": "Port B bit 4. Alt: PCINT4, SPI master-in/slave-out (MISO) - also serial-programming data out (PDO/MISO)."
      },
      {
        "number": "17",
        "name": "PB5/SCK/PCINT5",
        "type": "bidirectional",
        "description": "Port B bit 5. Alt: SPI clock (SCK), PCINT5 - also serial-programming clock during ISP."
      },
      {
        "number": "18",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply pin for the A/D converter and Port C. Must be tied to VCC even if ADC is unused; if the ADC is used, connect to VCC through an LC/RC low-pass filter (typ. 10 uH + 100 nF)."
      },
      {
        "number": "19",
        "name": "ADC6",
        "type": "input",
        "description": "Dedicated analog input, ADC channel 6 (10-bit). Available on TQFP/QFN packages only. Powered from AVCC; no digital I/O function."
      },
      {
        "number": "20",
        "name": "AREF",
        "type": "passive",
        "description": "Analog reference for the A/D converter. Bypass to GND with 100 nF when an internal reference is used."
      },
      {
        "number": "21",
        "name": "GND",
        "type": "power_in",
        "description": "Analog ground return; tie to the same ground plane as pins 3 and 5."
      },
      {
        "number": "22",
        "name": "ADC7",
        "type": "input",
        "description": "Dedicated analog input, ADC channel 7 (10-bit). Available on TQFP/QFN packages only. Powered from AVCC; no digital I/O function."
      },
      {
        "number": "23",
        "name": "PC0/ADC0/PCINT8",
        "type": "bidirectional",
        "description": "Port C bit 0. Alt: ADC channel 0 (10-bit), PCINT8. Powered from AVCC."
      },
      {
        "number": "24",
        "name": "PC1/ADC1/PCINT9",
        "type": "bidirectional",
        "description": "Port C bit 1. Alt: ADC1, PCINT9."
      },
      {
        "number": "25",
        "name": "PC2/ADC2/PCINT10",
        "type": "bidirectional",
        "description": "Port C bit 2. Alt: ADC2, PCINT10."
      },
      {
        "number": "26",
        "name": "PC3/ADC3/PCINT11",
        "type": "bidirectional",
        "description": "Port C bit 3. Alt: ADC3, PCINT11."
      },
      {
        "number": "27",
        "name": "PC4/ADC4/SDA/PCINT12",
        "type": "bidirectional",
        "description": "Port C bit 4. Alt: ADC4, TWI (I2C) data line SDA, PCINT12. Requires external pull-up (typ. 4.7 kΩ) when used as SDA."
      },
      {
        "number": "28",
        "name": "PC5/ADC5/SCL/PCINT13",
        "type": "bidirectional",
        "description": "Port C bit 5. Alt: ADC5, TWI (I2C) clock SCL, PCINT13. Requires external pull-up (typ. 4.7 kΩ) when used as SCL."
      },
      {
        "number": "29",
        "name": "PC6/RESET/PCINT14",
        "type": "input",
        "description": "Active-low reset input by default. Low level longer than the minimum pulse (see Table 8-1) generates a reset even without a running clock. When the RSTDISBL fuse is programmed the pin becomes general-purpose I/O PC6 (with reduced drive versus other Port C pins)."
      },
      {
        "number": "30",
        "name": "PD0/RXD/PCINT16",
        "type": "bidirectional",
        "description": "Port D bit 0. Alt: USART receive data (RXD), PCINT16."
      },
      {
        "number": "31",
        "name": "PD1/TXD/PCINT17",
        "type": "bidirectional",
        "description": "Port D bit 1. Alt: USART transmit data (TXD), PCINT17."
      },
      {
        "number": "32",
        "name": "PD2/INT0/PCINT18",
        "type": "bidirectional",
        "description": "Port D bit 2. Alt: external interrupt 0 (INT0), PCINT18."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588950694577778688",
        "pages": 288,
        "sha256": "b135fcb7cfdd8e96",
        "source_tier": "lcsc"
      },
      "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": "atmega168-15ad.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": "atmega168-15ad-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": "82181812b92840e8e4b0c7d6de29a1fb33af6e551c17809aadac33f8f43d0f01",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TQFP-32(7x7)",
      "Category": "Single Chip Microcomputer/Microcontroller",
      "Pins": "32"
    }
  },
  "variants": [
    {
      "mpn": "ATMEGA168-15AD",
      "kind": "packaging"
    },
    {
      "mpn": "ATMEGA168-15AD15MD",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "atmega168-15ad"
  ],
  "discovery_pitch": "ATMEGA168-15AD (Microchip Tech) 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",
    "atmega168-15ad.kicad_sym",
    "atmega168-15ad.kicad_mod",
    "atmega168-15ad.glb",
    "atmega168-15ad.step",
    "atmega168-15ad.lbr",
    "docs/hero.png",
    "docs/atmega168-15ad-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:17:29.581Z"
}