component
ATTINY461A-MU
Public Made by Adomby adom
Microchip Tech Pre-ordered MCUs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "attiny461a-mu",
"title": "ATTINY461A-MU",
"brief": "Microchip Tech Pre-ordered MCUs, QFN-32-EP(5x5). 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",
"embedded processors & controllers",
"attiny461a-mu",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "ATTINY461A-MU",
"manufacturer": "Microchip Tech",
"package": "QFN-32-EP(5x5)",
"pin_count": 33,
"category": "Embedded Processors & Controllers",
"subcategory": "Pre-ordered MCUs",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/90109a8b98586a945ab90b85fe9e58fb.pdf",
"parts": {
"symbol": "attiny461a-mu.kicad_sym",
"footprint": "attiny461a-mu.kicad_mod",
"model_3d": "attiny461a-mu-hero.glb",
"model_3d_plain": "attiny461a-mu-etched.glb",
"model_3d_step": "attiny461a-mu-etched.step",
"model_3d_step_plain": "attiny461a-mu.step",
"lbr": "attiny461a-mu.lbr"
},
"distributor_links": {
"lcsc": "C614253",
"digikey": "ATTINY461A-MU-ND",
"mouser": "556-ATTINY461A-MU"
},
"distributor_check": {
"checked_at": "2026-10-30T12:08:46Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATTINY461A-MU-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "556-ATTINY461A-MU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "2",
"name": "PB3",
"type": "bidirectional",
"description": "Port B bit 3 with internal pull-up; alternate functions OC1B (Timer/Counter1 Compare Match B output) and PCINT11."
},
{
"number": "3",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "4",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage (1.8 - 5.5V operating range)."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "6",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "7",
"name": "PB4",
"type": "bidirectional",
"description": "Port B bit 4 with internal pull-up; alternate functions ADC7, OC1D (inverted), CLKI/XTAL1 (clock or crystal oscillator input) and PCINT12."
},
{
"number": "8",
"name": "PB5",
"type": "bidirectional",
"description": "Port B bit 5 with internal pull-up; alternate functions ADC8, OC1D, CLKO/XTAL2 (crystal oscillator output, divided system clock output) and PCINT13."
},
{
"number": "9",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "10",
"name": "PB6",
"type": "bidirectional",
"description": "Port B bit 6 with internal pull-up; alternate functions ADC9, INT0 external interrupt, T0 Timer/Counter0 clock source and PCINT14."
},
{
"number": "11",
"name": "PB7",
"type": "bidirectional",
"description": "Port B bit 7; RESET input (low level longer than minimum pulse length generates a reset) or weak I/O if reset disabled, also debugWIRE I/O, ADC10 and PCINT15."
},
{
"number": "12",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "13",
"name": "PA7",
"type": "bidirectional",
"description": "Port A bit 7 with internal pull-up; alternate functions ADC6, AIN1 and PCINT7."
},
{
"number": "14",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6 with internal pull-up; alternate functions ADC5, AIN0 and PCINT6."
},
{
"number": "15",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5 with internal pull-up; alternate functions ADC4, AIN2 and PCINT5."
},
{
"number": "16",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "17",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4 with internal pull-up; alternate functions ADC3, ICP0 and PCINT4."
},
{
"number": "18",
"name": "AVCC",
"type": "power_in",
"description": "Analog supply for the ADC, analog comparator, BOD, internal voltage reference and Port A; must be connected to VCC (through a low-pass filter if the ADC is used)."
},
{
"number": "19",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "20",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "21",
"name": "AGND",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "22",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3 with internal pull-up; alternate functions AREF (ADC reference) and PCINT3."
},
{
"number": "23",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2 with internal pull-up; alternate functions ADC2, INT1, USCK/SCL (USI clock, with USIPOS set) and PCINT2."
},
{
"number": "24",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "25",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1 with internal pull-up; alternate functions ADC1, DO (USI data output, with USIPOS set) and PCINT1."
},
{
"number": "26",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0 with internal pull-up; alternate functions ADC0, DI/SDA (USI data, with USIPOS set) and PCINT0."
},
{
"number": "27",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "28",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "29",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "30",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 with internal pull-up; alternate functions MOSI/DI/SDA (USI data input), OC1A and PCINT8."
},
{
"number": "31",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 with internal pull-up; alternate functions MISO/DO (USI data output), OC1A and PCINT9."
},
{
"number": "32",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 with internal pull-up; alternate functions SCK/USCK/SCL (USI clock), OC1B (inverted) and PCINT10."
},
{
"number": "33",
"name": "EP",
"type": "passive",
"description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The QFN/MLF pin numbers were reconstructed from the order of the extracted figure text, because the ; The exposed pad has no pad number in the datasheet. 'EP' is a placeholder name. The datasheet says o",
"3/33 pins cited to the wrong page (name found elsewhere): ['30:PB0@p65', '31:PB1@p65', '32:PB2@p65']"
],
"pages_sent": 68,
"cost_usd": 0.4985,
"at": "2026-10-30T12:08:34"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/90109a8b98586a945ab90b85fe9e58fb.pdf",
"pages": 296,
"sha256": "b805ae111d6b33c0",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 33,
"described": 33,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
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"file": "attiny461a-mu.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "attiny461a-mu-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5,
5,
0.875
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "783d4d3e6aaef9c49d6e3c17bbc74811097ffb821c69d362ca83e6247ea5fa86",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "32M1-A",
"source_page": 281,
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "attiny461a-mu.step",
"verdict": "SKIP",
"reasons": [
"the datasheet dimensions give no height or body size to compare"
],
"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "Microchip Tech",
"Package": "QFN-32-EP(5x5)",
"Category": "Embedded Processors & Controllers",
"Pins": "33"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "b805ae111d6b33c0d71c9be15f5e213f9e43c578a8f4b26bafc8afca06df9301",
"rows": [
{
"name": "Operating Voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 1.8,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Operating Temperature (DC characteristics)",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "Industrial range",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Clock Frequency 1.8-5.5V",
"symbol": "1/tCLCL",
"kind": "timing",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 4,
"conditions": "VCC = 1.8 - 5.5V",
"source_page": 188,
"source": "datasheet"
},
{
"name": "Clock Frequency 2.7-5.5V",
"symbol": "1/tCLCL",
"kind": "timing",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 10,
"conditions": "VCC = 2.7 - 5.5V",
"source_page": 188,
"source": "datasheet"
},
{
"name": "Clock Frequency 4.5-5.5V",
"symbol": "1/tCLCL",
"kind": "timing",
"unit": "MHz",
"min": 0,
"typ": null,
"max": 20,
"conditions": "VCC = 4.5 - 5.5V",
"source_page": 188,
"source": "datasheet"
},
{
"name": "Operating Temperature (absolute max)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 125,
"conditions": "",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Storage Temperature",
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"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Voltage on any Pin except RESET",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "with respect to Ground; max VCC +0.5V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Voltage on RESET",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.5,
"typ": null,
"max": 13,
"conditions": "with respect to Ground",
"source_page": 185,
"source": "datasheet"
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{
"name": "Maximum Operating Voltage",
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"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 185,
"source": "datasheet"
},
{
"name": "DC Current per I/O Pin",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 185,
"source": "datasheet"
},
{
"name": "DC Current VCC and GND Pins",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 200,
"conditions": "",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Input Low-voltage, except XTAL1 and RESET",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "Except XTAL1 and RESET pins; max 0.2VCC",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Input Low-voltage, XTAL1",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "XTAL1 pin, External Clock Selected; max 0.1VCC",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Input Low-voltage, RESET",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": -0.5,
"typ": null,
"max": null,
"conditions": "RESET pin; max 0.2VCC",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output Low Voltage 5V",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "IOL = 10 mA, VCC = 5V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output Low Voltage 3V",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "IOL = 5 mA, VCC = 3V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output Low Voltage 1.8V",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "IOL = 2 mA, VCC = 1.8V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output Low Voltage RESET as I/O 5V",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.6,
"conditions": "RESET pin as I/O, IOL = 2 mA, VCC = 5V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output Low Voltage RESET as I/O 3V",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.5,
"conditions": "RESET pin as I/O, IOL = 1 mA, VCC = 3V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output Low Voltage RESET as I/O 1.8V",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "RESET pin as I/O, IOL = 0.4 mA, VCC = 1.8V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output High Voltage 5V",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 4.3,
"typ": null,
"max": null,
"conditions": "IOH = -10 mA, VCC = 5V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output High Voltage 3V",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 2.5,
"typ": null,
"max": null,
"conditions": "IOH = -5 mA, VCC = 3V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Output High Voltage 1.8V",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 1.4,
"typ": null,
"max": null,
"conditions": "IOH = -2 mA, VCC = 1.8V",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Input Leakage Current, pin low",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.05,
"max": 1,
"conditions": "VCC = 5.5V, pin low (absolute value); typ printed as <0.05",
"source_page": 185,
"source": "datasheet"
},
{
"name": "Input Leakage Current, pin high",
"symbol": "IIH",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 0.05,
"max": 1,
"conditions": "VCC = 5.5V, pin high (absolute value); typ printed as <0.05",
"source_page": 186,
"source": "datasheet"
},
{
"name": "Reset Pull-up Resistor",
"symbol": "RRST",
"kind": "electrical",
"unit": "kΩ",
"min": 30,
"typ": null,
"max": 60,
"conditions": "",
"source_page": 186,
"source": "datasheet"
},
{
"name": "I/O Pin Pull-up Resistor",
"symbol": "RPU",
"kind": "electrical",
"unit": "kΩ",
"min": 20,
"typ": null,
"max": 50,
"conditions": "",
"source_page": 186,
"source": "datasheet"
},
{
"name": "Supply Current Active 1MHz",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.2,
"max": 0.5,
"conditions": "Active 1MHz, VCC = 2V",
"source_page": 186,
"source": "datasheet"
},
{
"name": "Supply Current Active 4MHz",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.2,
"max": 2,
"conditions": "Active 4MHz, VCC = 3V",
"source_page": 186,
"source": "datasheet"
},
{
"name": "Supply Current Active 8MHz",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
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