component
ATTINY20-SSU
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "attiny20-ssu",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"attiny20-ssu",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"attiny20-ssu.kicad_sym",
"attiny20-ssu.kicad_mod",
"attiny20-ssu.glb",
"attiny20-ssu.step",
"attiny20-ssu.lbr",
"docs/hero.png",
"docs/attiny20-ssu-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"attiny20-ssu-hero.glb",
"attiny20-ssu-hero.overlay.json",
"attiny20-ssu-etched.glb"
],
"component": {
"mpn": "ATTINY20-SSU",
"manufacturer": "Microchip Tech",
"package": "SOIC-14",
"pin_count": 14,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/1395380aab474f4a583d5fed4e2c2d70.pdf",
"parts": {
"symbol": "attiny20-ssu.kicad_sym",
"footprint": "attiny20-ssu.kicad_mod",
"model_3d": "attiny20-ssu-hero.glb",
"model_3d_plain": "attiny20-ssu-etched.glb",
"model_3d_step": "attiny20-ssu-etched.step",
"model_3d_step_plain": "attiny20-ssu.step",
"lbr": "attiny20-ssu.lbr"
},
"distributor_links": {
"lcsc": "C614835",
"digikey": "ATTINY20-SSU-ND",
"mouser": "556-ATTINY20-SSU"
},
"distributor_check": {
"checked_at": "2026-10-30T22:44:37Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "ATTINY20-SSU-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATTINY20-SSU",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage."
},
{
"number": "2",
"name": "PB0",
"type": "bidirectional",
"description": "Port B bit 0 is a bi-directional I/O with selectable internal pull-up, with alternate functions CLKI, T0, TPICLK and PCINT8."
},
{
"number": "3",
"name": "PB1",
"type": "bidirectional",
"description": "Port B bit 1 is a bi-directional I/O with selectable internal pull-up, with alternate functions OC1A, SDA, MOSI, TPIDATA and PCINT9."
},
{
"number": "4",
"name": "PB3",
"type": "bidirectional",
"description": "Reset input: a low level longer than the minimum pulse length generates a reset, and the pin can be used as a weak I/O pin when the RSTDISBL fuse is programmed."
},
{
"number": "5",
"name": "PB2",
"type": "bidirectional",
"description": "Port B bit 2 is a bi-directional I/O with selectable internal pull-up, with alternate functions INT0, MISO, OC0A, OC1B, CKOUT and PCINT10."
},
{
"number": "6",
"name": "PA7",
"type": "bidirectional",
"description": "Port A bit 7 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC7, SCL, SCK, T1, ICP1, OC0B and PCINT7."
},
{
"number": "7",
"name": "PA6",
"type": "bidirectional",
"description": "Port A bit 6 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC6, SS and PCINT6."
},
{
"number": "8",
"name": "PA5",
"type": "bidirectional",
"description": "Port A bit 5 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC5 and PCINT5."
},
{
"number": "9",
"name": "PA4",
"type": "bidirectional",
"description": "Port A bit 4 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC4 and PCINT4."
},
{
"number": "10",
"name": "PA3",
"type": "bidirectional",
"description": "Port A bit 3 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC3 and PCINT3."
},
{
"number": "11",
"name": "PA2",
"type": "bidirectional",
"description": "Port A bit 2 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC2, AIN1 and PCINT2."
},
{
"number": "12",
"name": "PA1",
"type": "bidirectional",
"description": "Port A bit 1 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC1, AIN0 and PCINT1."
},
{
"number": "13",
"name": "PA0",
"type": "bidirectional",
"description": "Port A bit 0 is a bi-directional I/O with selectable internal pull-up and symmetrical drive, with alternate functions ADC0 and PCINT0."
},
{
"number": "14",
"name": "GND",
"type": "power_in",
"description": "Ground."
}
],
"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: The SOIC pin numbers were read from the garbled Figure 1-1 text on page 2. Pin 1 is VCC and pin 14 i"
],
"pages_sent": 40,
"cost_usd": 0.0519,
"at": "2026-10-30T22:44:27"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/1395380aab474f4a583d5fed4e2c2d70.pdf",
"pages": 219,
"sha256": "0bf57913e44d3a63",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 14,
"described": 14,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "attiny20-ssu.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
8.7,
1.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "attiny20-ssu-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.0,
8.7,
1.75
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "42396b48da26e78245101af8e6000249ed612b83d67715836282e373bfee9746",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}