atmega2560-16au

{
  "slug": "atmega2560-16au",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Microcontrollers (MCU/MPU/SOC), TQFP-100(14x14). Datasheet-verified pinout, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "mcu",
    "atmega2560-16au"
  ],
  "dependencies": {},
  "hero": {
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    "path": "docs/hero.png"
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  "files": [
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    "README.md",
    "atmega2560-16au.kicad_sym",
    "atmega2560-16au.kicad_mod",
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    "atmega2560-16au.step",
    "atmega2560-16au.lbr",
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    "docs/atmega2560-16au-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
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  "visibility": {
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  },
  "author": {
    "name": "Ray"
  },
  "component": {
    "mpn": "ATMEGA2560-16AU",
    "manufacturer": "Microchip",
    "package": "TQFP-100(14x14)",
    "pin_count": 100,
    "category": "Microcontrollers (MCU/MPU/SOC)",
    "parts": {
      "symbol": "atmega2560-16au.kicad_sym",
      "footprint": "atmega2560-16au.kicad_mod",
      "model_3d": "atmega2560-16au-etched.glb",
      "model_3d_plain": "atmega2560-16au.glb",
      "model_3d_step": "atmega2560-16au-etched.step",
      "model_3d_step_plain": "atmega2560-16au.step",
      "lbr": "atmega2560-16au.lbr"
    },
    "pins": [
      {
        "number": "1",
        "name": "PG5/(OC0B)",
        "type": "bidirectional",
        "description": "Port G bit 5 (6-bit port with internal pull-ups). Alternate function: Timer/Counter0 Output Compare Match B output (OC0B)."
      },
      {
        "number": "2",
        "name": "PE0/(RXD0/PCINT8)",
        "type": "bidirectional",
        "description": "Port E bit 0. Alternate functions: USART0 Receive input (RXD0) and Pin Change Interrupt source 8 (PCINT8)."
      },
      {
        "number": "3",
        "name": "PE1/(TXD0)",
        "type": "bidirectional",
        "description": "Port E bit 1. Alternate function: USART0 Transmit output (TXD0)."
      },
      {
        "number": "4",
        "name": "PE2/(XCK0/AIN0)",
        "type": "bidirectional",
        "description": "Port E bit 2. Alternate functions: USART0 external clock (XCK0) and Analog Comparator positive input (AIN0)."
      },
      {
        "number": "5",
        "name": "PE3/(OC3A/AIN1)",
        "type": "bidirectional",
        "description": "Port E bit 3. Alternate functions: Timer/Counter3 Output Compare Match A (OC3A) and Analog Comparator negative input (AIN1)."
      },
      {
        "number": "6",
        "name": "PE4/(OC3B/INT4)",
        "type": "bidirectional",
        "description": "Port E bit 4. Alternate functions: Timer/Counter3 Output Compare Match B (OC3B) and External Interrupt 4 (INT4)."
      },
      {
        "number": "7",
        "name": "PE5/(OC3C/INT5)",
        "type": "bidirectional",
        "description": "Port E bit 5. Alternate functions: Timer/Counter3 Output Compare Match C (OC3C) and External Interrupt 5 (INT5)."
      },
      {
        "number": "8",
        "name": "PE6/(T3/INT6)",
        "type": "bidirectional",
        "description": "Port E bit 6. Alternate functions: Timer/Counter3 external counter input (T3) and External Interrupt 6 (INT6)."
      },
      {
        "number": "9",
        "name": "PE7/(CLKO/ICP3/INT7)",
        "type": "bidirectional",
        "description": "Port E bit 7. Alternate functions: divided system clock output (CLKO), Timer/Counter3 input capture (ICP3), and External Interrupt 7 (INT7)."
      },
      {
        "number": "10",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage. 4.5-5.5 V for the 16 MHz speed grade. Decouple with 100 nF close to the pin."
      },
      {
        "number": "11",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "12",
        "name": "PH0/(RXD2)",
        "type": "bidirectional",
        "description": "Port H bit 0. Alternate function: USART2 Receive input (RXD2)."
      },
      {
        "number": "13",
        "name": "PH1/(TXD2)",
        "type": "bidirectional",
        "description": "Port H bit 1. Alternate function: USART2 Transmit output (TXD2)."
      },
      {
        "number": "14",
        "name": "PH2/(XCK2)",
        "type": "bidirectional",
        "description": "Port H bit 2. Alternate function: USART2 external clock (XCK2)."
      },
      {
        "number": "15",
        "name": "PH3/(OC4A)",
        "type": "bidirectional",
        "description": "Port H bit 3. Alternate function: Timer/Counter4 Output Compare Match A (OC4A)."
      },
      {
        "number": "16",
        "name": "PH4/(OC4B)",
        "type": "bidirectional",
        "description": "Port H bit 4. Alternate function: Timer/Counter4 Output Compare Match B (OC4B)."
      },
      {
        "number": "17",
        "name": "PH5/(OC4C)",
        "type": "bidirectional",
        "description": "Port H bit 5. Alternate function: Timer/Counter4 Output Compare Match C (OC4C)."
      },
      {
        "number": "18",
        "name": "PH6/(OC2B)",
        "type": "bidirectional",
        "description": "Port H bit 6. Alternate function: Timer/Counter2 Output Compare Match B (OC2B)."
      },
      {
        "number": "19",
        "name": "PB0/(SS/PCINT0)",
        "type": "bidirectional",
        "description": "Port B bit 0 (higher drive strength than other ports). Alternate functions: SPI Slave Select input (SS) and Pin Change Interrupt 0 (PCINT0)."
      },
      {
        "number": "20",
        "name": "PB1/(SCK/PCINT1)",
        "type": "bidirectional",
        "description": "Port B bit 1. Alternate functions: SPI serial clock (SCK) and Pin Change Interrupt 1 (PCINT1)."
      },
      {
        "number": "21",
        "name": "PB2/(MOSI/PCINT2)",
        "type": "bidirectional",
        "description": "Port B bit 2. Alternate functions: SPI Master-Out Slave-In (MOSI) and Pin Change Interrupt 2 (PCINT2)."
      },
      {
        "number": "22",
        "name": "PB3/(MISO/PCINT3)",
        "type": "bidirectional",
        "description": "Port B bit 3. Alternate functions: SPI Master-In Slave-Out (MISO) and Pin Change Interrupt 3 (PCINT3)."
      },
      {
        "number": "23",
        "name": "PB4/(OC2A/PCINT4)",
        "type": "bidirectional",
        "description": "Port B bit 4. Alternate functions: Timer/Counter2 Output Compare Match A (OC2A) and Pin Change Interrupt 4 (PCINT4)."
      },
      {
        "number": "24",
        "name": "PB5/(OC1A/PCINT5)",
        "type": "bidirectional",
        "description": "Port B bit 5. Alternate functions: Timer/Counter1 Output Compare Match A (OC1A) and Pin Change Interrupt 5 (PCINT5)."
      },
      {
        "number": "25",
        "name": "PB6/(OC1B/PCINT6)",
        "type": "bidirectional",
        "description": "Port B bit 6. Alternate functions: Timer/Counter1 Output Compare Match B (OC1B) and Pin Change Interrupt 6 (PCINT6)."
      },
      {
        "number": "26",
        "name": "PB7/(OC0A/OC1C/PCINT7)",
        "type": "bidirectional",
        "description": "Port B bit 7. Alternate functions: Timer/Counter0 Output Compare Match A (OC0A), Timer/Counter1 Output Compare Match C (OC1C), and Pin Change Interrupt 7 (PCINT7)."
      },
      {
        "number": "27",
        "name": "PH7/(T4)",
        "type": "bidirectional",
        "description": "Port H bit 7. Alternate function: Timer/Counter4 external counter input (T4)."
      },
      {
        "number": "28",
        "name": "PG3/(TOSC2)",
        "type": "bidirectional",
        "description": "Port G bit 3. Alternate function: Timer Oscillator pin 2 (TOSC2) when asynchronous Timer/Counter2 clocked from external 32.768 kHz crystal."
      },
      {
        "number": "29",
        "name": "PG4/(TOSC1)",
        "type": "bidirectional",
        "description": "Port G bit 4. Alternate function: Timer Oscillator pin 1 (TOSC1) for asynchronous Timer/Counter2 crystal input."
      },
      {
        "number": "30",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input. A low level longer than the minimum pulse length (see “System and Reset Characteristics”, datasheet p.360) generates a reset even if the clock is not running."
      },
      {
        "number": "31",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage (tie to same rail as other VCC pins). Decouple with 100 nF close to the pin."
      },
      {
        "number": "32",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "33",
        "name": "XTAL2",
        "type": "output",
        "description": "Output of the inverting crystal oscillator amplifier. Leave floating when using an external clock on XTAL1."
      },
      {
        "number": "34",
        "name": "XTAL1",
        "type": "input",
        "description": "Input to the inverting crystal oscillator amplifier and to the internal clock circuit. Drive with an external clock or connect a crystal between XTAL1 and XTAL2 with two load capacitors to ground."
      },
      {
        "number": "35",
        "name": "PL0/(ICP4)",
        "type": "bidirectional",
        "description": "Port L bit 0. Alternate function: Timer/Counter4 input capture (ICP4)."
      },
      {
        "number": "36",
        "name": "PL1/(ICP5)",
        "type": "bidirectional",
        "description": "Port L bit 1. Alternate function: Timer/Counter5 input capture (ICP5)."
      },
      {
        "number": "37",
        "name": "PL2/(T5)",
        "type": "bidirectional",
        "description": "Port L bit 2. Alternate function: Timer/Counter5 external counter input (T5)."
      },
      {
        "number": "38",
        "name": "PL3/(OC5A)",
        "type": "bidirectional",
        "description": "Port L bit 3. Alternate function: Timer/Counter5 Output Compare Match A (OC5A)."
      },
      {
        "number": "39",
        "name": "PL4/(OC5B)",
        "type": "bidirectional",
        "description": "Port L bit 4. Alternate function: Timer/Counter5 Output Compare Match B (OC5B)."
      },
      {
        "number": "40",
        "name": "PL5/(OC5C)",
        "type": "bidirectional",
        "description": "Port L bit 5. Alternate function: Timer/Counter5 Output Compare Match C (OC5C)."
      },
      {
        "number": "41",
        "name": "PL6",
        "type": "bidirectional",
        "description": "Port L bit 6 (general-purpose I/O with internal pull-up)."
      },
      {
        "number": "42",
        "name": "PL7",
        "type": "bidirectional",
        "description": "Port L bit 7 (general-purpose I/O with internal pull-up)."
      },
      {
        "number": "43",
        "name": "PD0/(SCL/INT0)",
        "type": "bidirectional",
        "description": "Port D bit 0. Alternate functions: 2-wire (TWI/I2C) serial clock (SCL) and External Interrupt 0 (INT0)."
      },
      {
        "number": "44",
        "name": "PD1/(SDA/INT1)",
        "type": "bidirectional",
        "description": "Port D bit 1. Alternate functions: 2-wire (TWI/I2C) serial data (SDA) and External Interrupt 1 (INT1)."
      },
      {
        "number": "45",
        "name": "PD2/(RXD1/INT2)",
        "type": "bidirectional",
        "description": "Port D bit 2. Alternate functions: USART1 Receive input (RXD1) and External Interrupt 2 (INT2)."
      },
      {
        "number": "46",
        "name": "PD3/(TXD1/INT3)",
        "type": "bidirectional",
        "description": "Port D bit 3. Alternate functions: USART1 Transmit output (TXD1) and External Interrupt 3 (INT3)."
      },
      {
        "number": "47",
        "name": "PD4/(ICP1)",
        "type": "bidirectional",
        "description": "Port D bit 4. Alternate function: Timer/Counter1 input capture (ICP1)."
      },
      {
        "number": "48",
        "name": "PD5/(XCK1)",
        "type": "bidirectional",
        "description": "Port D bit 5. Alternate function: USART1 external clock (XCK1)."
      },
      {
        "number": "49",
        "name": "PD6/(T1)",
        "type": "bidirectional",
        "description": "Port D bit 6. Alternate function: Timer/Counter1 external counter input (T1)."
      },
      {
        "number": "50",
        "name": "PD7/(T0)",
        "type": "bidirectional",
        "description": "Port D bit 7. Alternate function: Timer/Counter0 external counter input (T0)."
      },
      {
        "number": "51",
        "name": "PG0/(WR)",
        "type": "bidirectional",
        "description": "Port G bit 0. Alternate function: External-memory-interface Write strobe (WR) when the XMEM interface is enabled."
      },
      {
        "number": "52",
        "name": "PG1/(RD)",
        "type": "bidirectional",
        "description": "Port G bit 1. Alternate function: External-memory-interface Read strobe (RD) when the XMEM interface is enabled."
      },
      {
        "number": "53",
        "name": "PC0/(A8)",
        "type": "bidirectional",
        "description": "Port C bit 0. Alternate function: External-memory-interface address line A8."
      },
      {
        "number": "54",
        "name": "PC1/(A9)",
        "type": "bidirectional",
        "description": "Port C bit 1. Alternate function: External-memory-interface address line A9."
      },
      {
        "number": "55",
        "name": "PC2/(A10)",
        "type": "bidirectional",
        "description": "Port C bit 2. Alternate function: External-memory-interface address line A10."
      },
      {
        "number": "56",
        "name": "PC3/(A11)",
        "type": "bidirectional",
        "description": "Port C bit 3. Alternate function: External-memory-interface address line A11."
      },
      {
        "number": "57",
        "name": "PC4/(A12)",
        "type": "bidirectional",
        "description": "Port C bit 4. Alternate function: External-memory-interface address line A12."
      },
      {
        "number": "58",
        "name": "PC5/(A13)",
        "type": "bidirectional",
        "description": "Port C bit 5. Alternate function: External-memory-interface address line A13."
      },
      {
        "number": "59",
        "name": "PC6/(A14)",
        "type": "bidirectional",
        "description": "Port C bit 6. Alternate function: External-memory-interface address line A14."
      },
      {
        "number": "60",
        "name": "PC7/(A15)",
        "type": "bidirectional",
        "description": "Port C bit 7. Alternate function: External-memory-interface address line A15."
      },
      {
        "number": "61",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage. Decouple with 100 nF close to the pin."
      },
      {
        "number": "62",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "63",
        "name": "PJ0/(RXD3/PCINT9)",
        "type": "bidirectional",
        "description": "Port J bit 0. Alternate functions: USART3 Receive input (RXD3) and Pin Change Interrupt 9 (PCINT9)."
      },
      {
        "number": "64",
        "name": "PJ1/(TXD3/PCINT10)",
        "type": "bidirectional",
        "description": "Port J bit 1. Alternate functions: USART3 Transmit output (TXD3) and Pin Change Interrupt 10 (PCINT10)."
      },
      {
        "number": "65",
        "name": "PJ2/(XCK3/PCINT11)",
        "type": "bidirectional",
        "description": "Port J bit 2. Alternate functions: USART3 external clock (XCK3) and Pin Change Interrupt 11 (PCINT11)."
      },
      {
        "number": "66",
        "name": "PJ3/(PCINT12)",
        "type": "bidirectional",
        "description": "Port J bit 3. Alternate function: Pin Change Interrupt 12 (PCINT12)."
      },
      {
        "number": "67",
        "name": "PJ4/(PCINT13)",
        "type": "bidirectional",
        "description": "Port J bit 4. Alternate function: Pin Change Interrupt 13 (PCINT13)."
      },
      {
        "number": "68",
        "name": "PJ5/(PCINT14)",
        "type": "bidirectional",
        "description": "Port J bit 5. Alternate function: Pin Change Interrupt 14 (PCINT14)."
      },
      {
        "number": "69",
        "name": "PJ6/(PCINT15)",
        "type": "bidirectional",
        "description": "Port J bit 6. Alternate function: Pin Change Interrupt 15 (PCINT15)."
      },
      {
        "number": "70",
        "name": "PJ7",
        "type": "bidirectional",
        "description": "Port J bit 7 (general-purpose I/O with internal pull-up)."
      },
      {
        "number": "71",
        "name": "VCC",
        "type": "power_in",
        "description": "Digital supply voltage. Decouple with 100 nF close to the pin."
      },
      {
        "number": "72",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "73",
        "name": "PA7/(AD7)",
        "type": "bidirectional",
        "description": "Port A bit 7. Alternate function: multiplexed external-memory-interface Address/Data bit 7 (AD7)."
      },
      {
        "number": "74",
        "name": "PA6/(AD6)",
        "type": "bidirectional",
        "description": "Port A bit 6. Alternate function: multiplexed external-memory-interface Address/Data bit 6 (AD6)."
      },
      {
        "number": "75",
        "name": "PA5/(AD5)",
        "type": "bidirectional",
        "description": "Port A bit 5. Alternate function: multiplexed external-memory-interface Address/Data bit 5 (AD5)."
      },
      {
        "number": "76",
        "name": "PA4/(AD4)",
        "type": "bidirectional",
        "description": "Port A bit 4. Alternate function: multiplexed external-memory-interface Address/Data bit 4 (AD4)."
      },
      {
        "number": "77",
        "name": "PA3/(AD3)",
        "type": "bidirectional",
        "description": "Port A bit 3. Alternate function: multiplexed external-memory-interface Address/Data bit 3 (AD3)."
      },
      {
        "number": "78",
        "name": "PA2/(AD2)",
        "type": "bidirectional",
        "description": "Port A bit 2. Alternate function: multiplexed external-memory-interface Address/Data bit 2 (AD2)."
      },
      {
        "number": "79",
        "name": "PA1/(AD1)",
        "type": "bidirectional",
        "description": "Port A bit 1. Alternate function: multiplexed external-memory-interface Address/Data bit 1 (AD1)."
      },
      {
        "number": "80",
        "name": "PA0/(AD0)",
        "type": "bidirectional",
        "description": "Port A bit 0. Alternate function: multiplexed external-memory-interface Address/Data bit 0 (AD0)."
      },
      {
        "number": "81",
        "name": "PG2/(ALE)",
        "type": "bidirectional",
        "description": "Port G bit 2. Alternate function: External-memory-interface Address Latch Enable (ALE) when the XMEM interface is enabled."
      },
      {
        "number": "82",
        "name": "PK7/(ADC15/PCINT23)",
        "type": "bidirectional",
        "description": "Port K bit 7 doubling as ADC channel 15 input; also Pin Change Interrupt 23 (PCINT23). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "83",
        "name": "PK6/(ADC14/PCINT22)",
        "type": "bidirectional",
        "description": "Port K bit 6; ADC channel 14 input; Pin Change Interrupt 22 (PCINT22). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "84",
        "name": "PK5/(ADC13/PCINT21)",
        "type": "bidirectional",
        "description": "Port K bit 5; ADC channel 13 input; Pin Change Interrupt 21 (PCINT21). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "85",
        "name": "PK4/(ADC12/PCINT20)",
        "type": "bidirectional",
        "description": "Port K bit 4; ADC channel 12 input; Pin Change Interrupt 20 (PCINT20). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "86",
        "name": "PK3/(ADC11/PCINT19)",
        "type": "bidirectional",
        "description": "Port K bit 3; ADC channel 11 input; Pin Change Interrupt 19 (PCINT19). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "87",
        "name": "PK2/(ADC10/PCINT18)",
        "type": "bidirectional",
        "description": "Port K bit 2; ADC channel 10 input; Pin Change Interrupt 18 (PCINT18). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "88",
        "name": "PK1/(ADC9/PCINT17)",
        "type": "bidirectional",
        "description": "Port K bit 1; ADC channel 9 input; Pin Change Interrupt 17 (PCINT17). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "89",
        "name": "PK0/(ADC8/PCINT16)",
        "type": "bidirectional",
        "description": "Port K bit 0; ADC channel 8 input; Pin Change Interrupt 16 (PCINT16). Analog input range 0 V to AVCC (default), 10-bit resolution."
      },
      {
        "number": "90",
        "name": "PF7/(ADC7/TDI)",
        "type": "bidirectional",
        "description": "Port F bit 7; ADC channel 7 analog input; also JTAG Test Data Input (TDI). Pull-up on TDI stays active during reset when JTAG is enabled."
      },
      {
        "number": "91",
        "name": "PF6/(ADC6/TDO)",
        "type": "bidirectional",
        "description": "Port F bit 6; ADC channel 6 analog input; also JTAG Test Data Output (TDO)."
      },
      {
        "number": "92",
        "name": "PF5/(ADC5/TMS)",
        "type": "bidirectional",
        "description": "Port F bit 5; ADC channel 5 analog input; also JTAG Test Mode Select (TMS). Pull-up on TMS stays active during reset when JTAG is enabled."
      },
      {
        "number": "93",
        "name": "PF4/(ADC4/TCK)",
        "type": "bidirectional",
        "description": "Port F bit 4; ADC channel 4 analog input; also JTAG Test Clock (TCK). Pull-up on TCK stays active during reset when JTAG is enabled."
      },
      {
        "number": "94",
        "name": "PF3/(ADC3)",
        "type": "bidirectional",
        "description": "Port F bit 3; ADC channel 3 analog input. Digital GPIO when the ADC is not in use."
      },
      {
        "number": "95",
        "name": "PF2/(ADC2)",
        "type": "bidirectional",
        "description": "Port F bit 2; ADC channel 2 analog input. Digital GPIO when the ADC is not in use."
      },
      {
        "number": "96",
        "name": "PF1/(ADC1)",
        "type": "bidirectional",
        "description": "Port F bit 1; ADC channel 1 analog input. Digital GPIO when the ADC is not in use."
      },
      {
        "number": "97",
        "name": "PF0/(ADC0)",
        "type": "bidirectional",
        "description": "Port F bit 0; ADC channel 0 analog input. Digital GPIO when the ADC is not in use."
      },
      {
        "number": "98",
        "name": "AREF",
        "type": "passive",
        "description": "Analog reference voltage input for the A/D converter. Decouple to GND with 100 nF; may be tied to AVCC via an internal switch, or driven by an internal 1.1 V / 2.56 V bandgap depending on ADMUX[REFS1:0]."
      },
      {
        "number": "99",
        "name": "GND",
        "type": "power_in",
        "description": "Ground (return for AVCC and AREF; connect to the common ground plane at the pin)."
      },
      {
        "number": "100",
        "name": "AVCC",
        "type": "power_in",
        "description": "Analog supply for Port F and the A/D Converter. Must be tied to VCC even if the ADC is not used; when the ADC is used, connect via an LC/RC low-pass filter to VCC."
      }
    ],
    "provenance": {
      "rebuilt": "component block rebuilt 2026-10-05 from this page's own README pinout table and .kicad_sym (pins cross-checked), no re-extraction"
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "distributor_links": {
      "lcsc": "C22460",
      "digikey": "ATMEGA2560-16AU-ND",
      "mouser": "556-ATMEGA2560-16AU"
    },
    "distributor_check": {
      "checked_at": "2026-10-05T18:53:25Z",
      "source": "Component Ocean /api/assign-pns + lcsc_map",
      "digikey": {
        "pn": "ATMEGA2560-16AU-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "556-ATMEGA2560-16AU",
        "status": "found"
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    "models_3d": [
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        "file": "atmega2560-16au.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "footprint_binding": "identity",
        "sha256": "99d530be126138ea024746562f1110203db0273456e99932e7e1930dc9f5fba5",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "atmega2560-16au-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
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        "footprint_binding": "identity",
        "sha256": "61ced50226f3ca689aba21fd23b56de4ee8b62bd942d24593a2fff2bedf97ff7",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}