component
ATMEGA8A-ANR
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "atmega8a-anr",
"title": "ATMEGA8A-ANR",
"brief": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-32(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"atmega8a-anr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATMEGA8A-ANR",
"manufacturer": "Microchip Tech",
"package": "TQFP-32(7x7)",
"pin_count": 32,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/ATmega8A-Data-Sheet-DS40001974B.pdf",
"parts": {
"symbol": "atmega8a-anr.kicad_sym",
"footprint": "atmega8a-anr.kicad_mod",
"model_3d": "atmega8a-anr-hero.glb",
"model_3d_plain": "atmega8a-anr-etched.glb",
"model_3d_step": "atmega8a-anr-etched.step",
"model_3d_step_plain": "atmega8a-anr.step",
"lbr": "atmega8a-anr.lbr"
},
"distributor_links": {
"lcsc": "C2053361",
"digikey": "ATMEGA8A-ANRTR-ND",
"mouser": "556-ATMEGA8A-ANR"
},
"distributor_check": {
"checked_at": "2026-10-30T23:16:13Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATMEGA8A-ANRTR-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATMEGA8A-ANR",
"status": "found",
"lifecycle": "Not Recommended for New Designs"
}
},
"pins": [
{
"number": "1",
"name": "PD3",
"type": "bidirectional",
"description": "Port D bit 3 with internal pull-up option, also External Interrupt source 1 (INT1) input that can trigger an interrupt on pin activity."
},
{
"number": "2",
"name": "PD4",
"type": "bidirectional",
"description": "Port D bit 4, also USART external clock XCK (input or output in synchronous mode) 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; the device operates from 2.7 to 5.5 V with 0 to 16 MHz."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "VCC",
"type": "power_in",
"description": "Digital supply voltage; the device operates from 2.7 to 5.5 V with 0 to 16 MHz."
},
{
"number": "7",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6, used as chip clock oscillator pin 1 / external clock input (or TOSC1 input for Timer/Counter2 when AS2 is set), in which case the pin cannot be used as I/O."
},
{
"number": "8",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7, used as chip clock oscillator pin 2 (inverting oscillator amplifier output) or TOSC2 when AS2 is set, in which case the pin cannot be used as I/O."
},
{
"number": "9",
"name": "PD5",
"type": "bidirectional",
"description": "Port D bit 5, also Timer/Counter1 external counter source input T1."
},
{
"number": "10",
"name": "PD6",
"type": "bidirectional",
"description": "Port D bit 6, also Analog Comparator positive input AIN0; configure as input with internal pull-up off to avoid interfering with the comparator."
},
{
"number": "11",
"name": "PD7",
"type": "bidirectional",
"description": "Port D bit 7, also Analog Comparator negative input AIN1; configure as input with internal pull-up off to avoid interfering with the comparator."
},
{
"number": "12",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0, also Timer/Counter1 Input Capture pin ICP1."
},
{
"number": "13",
"name": "PB1 (OC1A)",
"type": "bidirectional",
"description": "Port B bit 1, also Timer/Counter1 Output Compare Match A output OC1A (must be configured as output to serve this function)."
},
{
"number": "14",
"name": "PB2 (SS/OC1B)",
"type": "bidirectional",
"description": "Port B bit 2, also SPI Slave Select SS input (driven low to activate SPI slave) and Timer/Counter1 Output Compare Match B output OC1B."
},
{
"number": "15",
"name": "PB3 (MOSI/OC2)",
"type": "bidirectional",
"description": "Port B bit 3, also SPI Master Output/Slave Input MOSI and Timer/Counter2 Output Compare Match output OC2."
},
{
"number": "16",
"name": "PB4 (MISO)",
"type": "bidirectional",
"description": "Port B bit 4, also SPI Master Input/Slave Output MISO."
},
{
"number": "17",
"name": "PB5 (SCK)",
"type": "bidirectional",
"description": "Port B bit 5, also SPI clock: master clock output or slave clock input SCK."
},
{
"number": "18",
"name": "AVCC",
"type": "power_in",
"description": "Supply voltage pin for the A/D Converter, Port C (3:0) and ADC7:6; it should 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": "ADC6",
"type": "input",
"description": "Analog input channel 6 of the A/D converter (TQFP and VQFN only), powered from the analog supply."
},
{
"number": "20",
"name": "AREF",
"type": "passive",
"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 (TQFP and VQFN only), powered from the analog supply."
},
{
"number": "23",
"name": "PC0 (ADC0)",
"type": "bidirectional",
"description": "Port C bit 0 (7-bit port PC5:PC0 with internal pull-ups), also ADC input channel 0 using analog power."
},
{
"number": "24",
"name": "PC1 (ADC1)",
"type": "bidirectional",
"description": "Port C bit 1, also ADC input channel 1 using analog power."
},
{
"number": "25",
"name": "PC2 (ADC2)",
"type": "bidirectional",
"description": "Port C bit 2, also ADC input channel 2 using analog power."
},
{
"number": "26",
"name": "PC3 (ADC3)",
"type": "bidirectional",
"description": "Port C bit 3, also ADC input channel 3 using analog power."
},
{
"number": "27",
"name": "PC4",
"type": "bidirectional",
"description": "Port C bit 4, also Two-wire Serial Interface data SDA (open-drain with slew-rate limit when TWEN is set) and ADC input channel 4 using digital power."
},
{
"number": "28",
"name": "PC5",
"type": "bidirectional",
"description": "Port C bit 5, also Two-wire Serial Interface clock SCL (open-drain with slew-rate limit when TWEN is set) and 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); when RSTDISBL is programmed it is a normal I/O pin with electrical characteristics differing from other Port C pins."
},
{
"number": "30",
"name": "PD0 (RXD)",
"type": "bidirectional",
"description": "Port D bit 0, also USART receive data input RXD, forced to input when the USART receiver is enabled."
},
{
"number": "31",
"name": "PD1 (TXD)",
"type": "bidirectional",
"description": "Port D bit 1, also USART transmit data output TXD, forced to output when the USART transmitter is enabled."
},
{
"number": "32",
"name": "PD2 (INT0)",
"type": "bidirectional",
"description": "Port D bit 2, also External Interrupt source 0 (INT0) input that can serve as an external interrupt source."
}
],
"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": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: Pin-number-to-name mapping was taken from the Figure 1-1 TQFP Top View, whose text extraction is jum; Pin types are KiCad-style interpretations: port pins are marked bidirectional even where the alterna; The datasheet gives no numeric analog pin limits (voltage range or max current) for AVCC, AREF, or A",
"20/32 pins cited to the wrong page (name found elsewhere): ['1:PD3 (INT1)@p63', '8:PB7 (XTAL2/TOSC2)@p64', '12:PB0 (ICP1)@p63', '14:PB2 (SS/OC1B)@p64']"
],
"pages_sent": 76,
"cost_usd": 0.2894,
"at": "2026-10-30T23:16:01"
},
"datasheet": {
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"pages": 327,
"sha256": "e10f0e392857e034",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 32,
"described": 32,
"cites_pages": true,
"refuses_to_fabricate": true
}
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"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "TQFP-32(7x7)",
"Category": "Single Chip Microcomputer/Microcontroller",
"Pins": "32"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "e10f0e392857e034d0a39546405fb32702f8e00396d9cac60e997755dd8887cb",
"rows": [
{
"name": "Operating Temperature",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 240,
"source": "datasheet"
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{
"name": "Storage Temperature",
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"min": -65,
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{
"name": "Voltage on any Pin except RESET with respect to Ground (lower limit)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "Upper limit printed as VCC+0.5V",
"source_page": 240,
"source": "datasheet"
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{
"name": "Voltage on RESET with respect to Ground",
"symbol": "",
"kind": "absolute_maximum",
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"min": -0.5,
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"max": 13,
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{
"name": "Maximum Operating Voltage",
"symbol": "",
"kind": "absolute_maximum",
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"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 240,
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{
"name": "DC Current per I/O Pin",
"symbol": "",
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"min": null,
"typ": null,
"max": 40,
"conditions": "",
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{
"name": "DC Current VCC and GND Pins",
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{
"name": "Input Low Voltage, Except XTAL1 and RESET pin",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 2.7V - 5.5V; max printed as 0.2VCC",
"source_page": 240,
"source": "datasheet"
},
{
"name": "Input Low Voltage, XTAL1 pin",
"symbol": "VIL1",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 2.7V - 5.5V; max printed as 0.1VCC",
"source_page": 240,
"source": "datasheet"
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{
"name": "Input Low Voltage, RESET pin",
"symbol": "VIL2",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "VCC = 2.7V - 5.5V; max printed as 0.1VCC",
"source_page": 240,
"source": "datasheet"
},
{
"name": "Output Low Voltage, Port B (except RESET)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "IOL = 20 mA, VCC = 5V",
"source_page": 240,
"source": "datasheet"
},
{
"name": "Output Low Voltage, Port B (except RESET)",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "IOL = 10 mA, VCC = 3V",
"source_page": 240,
"source": "datasheet"
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{
"name": "Output High Voltage, Port B (except RESET)",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 4,
"typ": null,
"max": null,
"conditions": "IOH = -20 mA, VCC = 5V",
"source_page": 240,
"source": "datasheet"
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{
"name": "Output High Voltage, Port B (except RESET)",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.2,
"typ": null,
"max": null,
"conditions": "IOH = -10 mA, VCC = 3V",
"source_page": 240,
"source": "datasheet"
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{
"name": "Input Leakage Current I/O Pin (low)",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 240,
"source": "datasheet"
},
{
"name": "Input Leakage Current I/O Pin (high)",
"symbol": "IIH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 240,
"source": "datasheet"
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{
"name": "Reset Pull-up Resistor",
"symbol": "RRST",
"kind": "electrical",
"unit": "k",
"min": 30,
"typ": null,
"max": 80,
"conditions": "",
"source_page": 240,
"source": "datasheet"
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{
"name": "I/O Pin Pull-up Resistor",
"symbol": "RPU",
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"unit": "k",
"min": 20,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 240,
"source": "datasheet"
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{
"name": "Analog Comparator Input Offset Voltage",
"symbol": "VACIO",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": null,
"max": 20,
"conditions": "VCC = 5V, Vin = VCC/2",
"source_page": 240,
"source": "datasheet"
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{
"name": "Analog Comparator Input Leakage Current",
"symbol": "IACLK",
"kind": "electrical",
"unit": "nA",
"min": -50,
"typ": null,
"max": 50,
"conditions": "VCC = 5V, Vin = VCC/2",
"source_page": 240,
"source": "datasheet"
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{
"name": "Power Supply Current, Active",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "Active 4 MHz, VCC = 3V",
"source_page": 241,
"source": "datasheet"
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"name": "Power Supply Current, Active",
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"min": null,
"typ": null,
"max": 15,
"conditions": "Active 8 MHz, VCC = 5V",
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"source": "datasheet"
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"name": "Power Supply Current, Idle",
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"unit": "mA",
"min": null,
"typ": null,
"max": 3,
"conditions": "Idle 4 MHz, VCC = 3V",
"source_page": 241,
"source": "datasheet"
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"typ": null,
"max": 8,
"conditions": "Idle 8 MHz, VCC = 5V",
"source_page": 241,
"source": "datasheet"
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"name": "Power Supply Current, Power-down mode",
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"typ": null,
"max": 35,
"conditions": "WDT enabled, VCC = 3V",
"source_page": 241,
"source": "datasheet"
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"name": "Power Supply Current, Power-down mode",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 6,
"conditions": "WDT disabled, VCC = 3V",
"source_page": 241,
"source": "datasheet"
}
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}
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