component
ATMEGA8-16AU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Pre-ordered MCUs, TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"embedded processors & controllers",
"atmega8-16au",
"factory-2.0.0",
"extractor-text"
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"component": {
"mpn": "ATMEGA8-16AU",
"manufacturer": "Microchip Tech",
"package": "TQFP-32(7x7)",
"pin_count": 32,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2486-8-bit-AVR-microcontroller-ATmega8_L_datasheet.pdf",
"parts": {
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"lbr": "atmega8-16au.lbr"
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"distributor_links": {
"lcsc": "C1337807",
"digikey": "ATMEGA8-16AU-ND",
"mouser": "556-ATMEGA8-16AU"
},
"distributor_check": {
"checked_at": "2026-10-27T00:25:03Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "ATMEGA8-16AU-ND",
"status": "found"
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"pn": "556-ATMEGA8-16AU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PD3 (INT1)",
"type": "bidirectional",
"description": "Port D bit 3 is a bidirectional I/O pin with internal pull-up that can also serve as external interrupt source INT1."
},
{
"number": "2",
"name": "PD4 (XCK/T0)",
"type": "bidirectional",
"description": "Port D bit 4 is a bidirectional I/O pin with internal pull-up that also serves as USART external clock XCK and Timer/Counter0 external counter input T0."
},
{
"number": "3",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "4",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage."
},
{
"number": "7",
"name": "PB6 (XTAL1/TOSC1)",
"type": "input",
"description": "Port B bit 6 serves as input to the inverting oscillator amplifier and to the internal clock operating circuit, or as TOSC1 for the asynchronous timer."
},
{
"number": "8",
"name": "PB7 (XTAL2/TOSC2)",
"type": "output",
"description": "Port B bit 7 serves as output of the inverting oscillator amplifier (XTAL2), or as TOSC2 when the asynchronous timer is enabled."
},
{
"number": "9",
"name": "PD5 (T1)",
"type": "bidirectional",
"description": "Port D bit 5 is a bidirectional I/O pin with internal pull-up that also serves as Timer/Counter1 external counter input T1."
},
{
"number": "10",
"name": "PD6 (AIN0)",
"type": "bidirectional",
"description": "Port D bit 6 is a bidirectional I/O pin that serves as Analog Comparator positive input AIN0 and should be configured as input with pull-up off when used as comparator input."
},
{
"number": "11",
"name": "PD7 (AIN1)",
"type": "bidirectional",
"description": "Port D bit 7 is a bidirectional I/O pin that serves as Analog Comparator negative input AIN1 and should be configured as input with pull-up off when used as comparator input."
},
{
"number": "12",
"name": "PB0 (ICP1)",
"type": "bidirectional",
"description": "Port B bit 0 is a bidirectional I/O pin that serves as Input Capture pin ICP1 for Timer/Counter1."
},
{
"number": "13",
"name": "PB1 (OC1A)",
"type": "bidirectional",
"description": "Port B bit 1 is a bidirectional I/O pin that serves as Timer/Counter1 Output Compare A output OC1A when configured as output."
},
{
"number": "14",
"name": "PB2 (SS/OC1B)",
"type": "bidirectional",
"description": "Port B bit 2 is a bidirectional I/O pin that serves as SPI Slave Select SS and Timer/Counter1 Output Compare B output OC1B."
},
{
"number": "15",
"name": "PB3 (MOSI/OC2)",
"type": "bidirectional",
"description": "Port B bit 3 is a bidirectional I/O pin that serves as SPI Master Output/Slave Input MOSI and Timer/Counter2 Output Compare output OC2."
},
{
"number": "16",
"name": "PB4 (MISO)",
"type": "bidirectional",
"description": "Port B bit 4 is a bidirectional I/O pin with internal pull-up that serves as SPI Master Input/Slave Output MISO."
},
{
"number": "17",
"name": "PB5 (SCK)",
"type": "bidirectional",
"description": "Port B bit 5 is a bidirectional I/O pin with internal pull-up that serves as SPI clock SCK."
},
{
"number": "18",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage pin for the A/D Converter, Port C(3..0) and ADC(7..6), which should be externally connected to VCC even if the ADC is not used."
},
{
"number": "19",
"name": "ADC6",
"type": "input",
"description": "Analog input channel 6 of the A/D converter, available in TQFP and QFN/MLF packages only, powered from the analog supply with 10-bit accuracy."
},
{
"number": "20",
"name": "AREF",
"type": "input",
"description": "Analog reference pin for the A/D Converter."
},
{
"number": "21",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "22",
"name": "ADC7",
"type": "input",
"description": "Analog input channel 7 of the A/D converter, available in TQFP and QFN/MLF packages only, powered from the analog supply with 10-bit accuracy."
},
{
"number": "23",
"name": "PC0 (ADC0)",
"type": "bidirectional",
"description": "Port C bit 0 is a bidirectional I/O pin that can also serve as ADC input channel 0 using analog power."
},
{
"number": "24",
"name": "PC1 (ADC1)",
"type": "bidirectional",
"description": "Port C bit 1 is a bidirectional I/O pin that can also serve as ADC input channel 1 using analog power."
},
{
"number": "25",
"name": "PC2 (ADC2)",
"type": "bidirectional",
"description": "Port C bit 2 is a bidirectional I/O pin that can also serve as ADC input channel 2 using analog power."
},
{
"number": "26",
"name": "PC3 (ADC3)",
"type": "bidirectional",
"description": "Port C bit 3 is a bidirectional I/O pin that can also serve as ADC input channel 3 using analog power."
},
{
"number": "27",
"name": "PC4 (ADC4/SDA)",
"type": "bidirectional",
"description": "Port C bit 4 is a bidirectional I/O pin that serves as Two-wire Serial Interface data SDA when enabled and as ADC input channel 4 using digital power."
},
{
"number": "28",
"name": "PC5 (ADC5/SCL)",
"type": "bidirectional",
"description": "Port C bit 5 is a bidirectional I/O pin that serves as Two-wire Serial Interface clock SCL when enabled and as ADC input channel 5 using digital power."
},
{
"number": "29",
"name": "PC6 (RESET)",
"type": "input",
"description": "Reset input when the RSTDISBL fuse is unprogrammed; a low level longer than the minimum pulse length generates a reset, otherwise the pin is an I/O pin."
},
{
"number": "30",
"name": "PD0 (RXD)",
"type": "bidirectional",
"description": "Port D bit 0 is a bidirectional I/O pin that serves as USART receive data input RXD when the USART receiver is enabled."
},
{
"number": "31",
"name": "PD1 (TXD)",
"type": "bidirectional",
"description": "Port D bit 1 is a bidirectional I/O pin that serves as USART transmit data output TXD when the USART transmitter is enabled."
},
{
"number": "32",
"name": "PD2 (INT0)",
"type": "bidirectional",
"description": "Port D bit 2 is a bidirectional I/O pin that can serve as external interrupt source INT0."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": null,
"consensus": "skipped (clean text read)",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"16/32 pins cited to the wrong page (name found elsewhere): ['9:PD5 (T1)@p63', '10:PD6 (AIN0)@p63', '11:PD7 (AIN1)@p63', '12:PB0 (ICP1)@p59']"
],
"pages_sent": 65,
"cost_usd": 0.0046,
"at": "2026-10-27T00:24:40"
},
"datasheet": {
"url": "https://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-2486-8-bit-AVR-microcontroller-ATmega8_L_datasheet.pdf",
"pages": 331,
"sha256": "279c22ef16189af1",
"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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"checked": "2026-10-27",
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