component
ATMEGA3208-MUR
Public Made by Adomby adom
Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "atmega3208-mur",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"single chip microcomputer-microcontroller",
"atmega3208-mur",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"atmega3208-mur.kicad_sym",
"atmega3208-mur.kicad_mod",
"atmega3208-mur.glb",
"atmega3208-mur.step",
"atmega3208-mur.lbr",
"docs/hero.png",
"docs/atmega3208-mur-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"atmega3208-mur-hero.glb",
"atmega3208-mur-hero.overlay.json",
"atmega3208-mur-etched.glb"
],
"component": {
"mpn": "ATMEGA3208-MUR",
"manufacturer": "Microchip Tech",
"package": "VQFN-32-EP(5x5)",
"pin_count": 33,
"category": "Single Chip Microcomputer/Microcontroller",
"subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
"datasheet": "http://ww1.microchip.com/downloads/en/DeviceDoc/ATmega3208-3209-Data-Sheet-DS40002174A.pdf",
"parts": {
"symbol": "atmega3208-mur.kicad_sym",
"footprint": "atmega3208-mur.kicad_mod",
"model_3d": "atmega3208-mur-hero.glb",
"model_3d_plain": "atmega3208-mur-etched.glb",
"model_3d_step": "atmega3208-mur-etched.step",
"model_3d_step_plain": "atmega3208-mur.step",
"lbr": "atmega3208-mur.lbr"
},
"distributor_links": {
"lcsc": "C2055401",
"digikey": "150-ATMEGA3208-MURTR-ND",
"mouser": "556-ATMEGA3208-MUR"
},
"distributor_check": {
"checked_at": "2026-10-30T16:20:55Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "150-ATMEGA3208-MURTR-ND",
"status": "found"
},
"mouser": {
"pn": "556-ATMEGA3208-MUR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "PA3",
"type": "bidirectional",
"description": "General-purpose I/O pin PA3 with alternate functions TWI0 SCL (master/slave), USART0 XDIR, TCA0 WO3, TCB1 WO and CCL LUT0-OUT, selected through PORTMUX where alternate positions apply."
},
{
"number": "2",
"name": "PA4",
"type": "bidirectional",
"description": "General-purpose I/O pin PA4 with alternate functions USART0 TxD (alternate position), SPI0 MOSI and TCA0 WO4."
},
{
"number": "3",
"name": "PA5",
"type": "bidirectional",
"description": "General-purpose I/O pin PA5 with alternate functions USART0 RxD (alternate position), SPI0 MISO and TCA0 WO5."
},
{
"number": "4",
"name": "PA6",
"type": "bidirectional",
"description": "General-purpose I/O pin PA6 with alternate functions USART0 XCK (alternate position), SPI0 SCK and CCL LUT0-OUT (alternate position); PA6 supports full asynchronous interrupt detection, so it can wake the device from all sleep modes."
},
{
"number": "5",
"name": "PA7",
"type": "bidirectional",
"description": "General-purpose I/O pin PA7 with alternate functions CLKOUT, AC0 OUT, USART0 XDIR (alternate position), SPI0 SS and EVSYS EVOUTA (alternate position)."
},
{
"number": "6",
"name": "PC0",
"type": "bidirectional",
"description": "General-purpose I/O pin PC0 with alternate functions USART1 TxD, SPI0 MOSI (alternate position), TCA0 WO0 (alternate position), TCB2 WO and CCL LUT1-IN0."
},
{
"number": "7",
"name": "PC1",
"type": "bidirectional",
"description": "General-purpose I/O pin PC1 with alternate functions USART1 RxD, SPI0 MISO (alternate position), TCA0 WO1 (alternate position), TCB3 WO (alternate position) and CCL LUT1-IN1."
},
{
"number": "8",
"name": "PC2",
"type": "bidirectional",
"description": "General-purpose I/O pin PC2 with alternate functions TWI0 SDA (master/slave) (alternate position), USART1 XCK, SPI0 SCK (alternate position), TCA0 WO2 (alternate position), EVSYS EVOUTC and CCL LUT1-IN2; PC2 supports full asynchronous interrupt detection."
},
{
"number": "9",
"name": "PC3",
"type": "bidirectional",
"description": "General-purpose I/O pin PC3 with alternate functions TWI0 SCL (master/slave) (alternate position), USART1 XDIR, SPI0 SS (alternate position), TCA0 WO3 (alternate position) and CCL LUT1-OUT."
},
{
"number": "10",
"name": "PD0",
"type": "bidirectional",
"description": "General-purpose I/O pin PD0 with analog input AIN0, alternate function TCA0 WO0 (alternate position) and CCL LUT2-IN0."
},
{
"number": "11",
"name": "PD1",
"type": "bidirectional",
"description": "General-purpose I/O pin PD1 with analog input AIN1, AC0 positive input P3, alternate function TCA0 WO1 (alternate position) and CCL LUT2-IN1."
},
{
"number": "12",
"name": "PD2",
"type": "bidirectional",
"description": "General-purpose I/O pin PD2 with analog input AIN2, AC0 positive input P0, alternate function TCA0 WO2 (alternate position), EVSYS EVOUTD and CCL LUT2-IN2; PD2 supports full asynchronous interrupt detection."
},
{
"number": "13",
"name": "PD3",
"type": "bidirectional",
"description": "General-purpose I/O pin PD3 with analog input AIN3, AC0 negative input N0, alternate function TCA0 WO3 (alternate position) and CCL LUT2-OUT."
},
{
"number": "14",
"name": "PD4",
"type": "bidirectional",
"description": "General-purpose I/O pin PD4 with analog input AIN4, AC0 positive input P1 and alternate function TCA0 WO4 (alternate position)."
},
{
"number": "15",
"name": "PD5",
"type": "bidirectional",
"description": "General-purpose I/O pin PD5 with analog input AIN5, AC0 negative input N1 and alternate function TCA0 WO5 (alternate position)."
},
{
"number": "16",
"name": "PD6",
"type": "bidirectional",
"description": "General-purpose I/O pin PD6 with analog input AIN6, AC0 positive input P2 and CCL LUT2-OUT (alternate position); PD6 supports full asynchronous interrupt detection."
},
{
"number": "17",
"name": "PD7",
"type": "bidirectional",
"description": "General-purpose I/O pin PD7 with VREFA external voltage reference input, analog input AIN7, AC0 negative input N2 and EVSYS EVOUTD (alternate position)."
},
{
"number": "18",
"name": "AVDD",
"type": "power_in",
"description": "Supply pin for the AVDD power domain, which feeds the GPIO on the AVDD domain and the analog functions; the device supply range is 1.8-5.5V."
},
{
"number": "19",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device."
},
{
"number": "20",
"name": "PF0",
"type": "bidirectional",
"description": "General-purpose I/O pin PF0 that doubles as the TOSC1 crystal oscillator pin, with alternate functions USART2 TxD, TCA0 WO0 (alternate position) and CCL LUT3-IN0."
},
{
"number": "21",
"name": "PF1",
"type": "bidirectional",
"description": "General-purpose I/O pin PF1 that doubles as the TOSC2 crystal oscillator pin, with alternate functions USART2 RxD, TCA0 WO1 (alternate position) and CCL LUT3-IN1."
},
{
"number": "22",
"name": "PF2",
"type": "bidirectional",
"description": "General-purpose I/O pin PF2 with TWI0 SDA (slave) (alternate position), analog input AIN12, USART2 XCK (alternate position), TCA0 WO2 (alternate position), EVSYS EVOUTF and CCL LUT3-IN2; PF2 is not a full-async pin on this package."
},
{
"number": "23",
"name": "PF3",
"type": "bidirectional",
"description": "General-purpose I/O pin PF3 with TWI0 SCL (slave) (alternate position), analog input AIN13, USART2 XDIR (alternate position), TCA0 WO3 (alternate position) and CCL LUT3-OUT."
},
{
"number": "24",
"name": "PF4",
"type": "bidirectional",
"description": "General-purpose I/O pin PF4 with analog input AIN14, USART2 TxD (alternate position), TCA0 WO4 (alternate position) and TCB0 WO (alternate position)."
},
{
"number": "25",
"name": "PF5",
"type": "bidirectional",
"description": "General-purpose I/O pin PF5 with analog input AIN15, USART2 RxD (alternate position), TCA0 WO5 (alternate position) and TCB1 WO (alternate position)."
},
{
"number": "26",
"name": "PF6",
"type": "bidirectional",
"description": "General-purpose I/O pin PF6 that doubles as the RESET pin when RSTPINCFG is set to RESET, with USART2 XCK (alternate position) and CCL LUT3-OUT (alternate position) as alternate functions."
},
{
"number": "27",
"name": "UPDI",
"type": "bidirectional",
"description": "Unified Program and Debug Interface pin used for programming and debugging the device."
},
{
"number": "28",
"name": "VDD",
"type": "power_in",
"description": "Main power supply pin for the device, operating from 1.8V to 5.5V per the ordering information."
},
{
"number": "29",
"name": "GND",
"type": "power_in",
"description": "Ground reference pin for the device."
},
{
"number": "30",
"name": "PA0",
"type": "bidirectional",
"description": "General-purpose I/O pin PA0 that doubles as the EXTCLK external clock input, with alternate functions USART0 TxD, TCA0 WO0 and CCL LUT0-IN0."
},
{
"number": "31",
"name": "PA1",
"type": "bidirectional",
"description": "General-purpose I/O pin PA1 with alternate functions USART0 RxD, TCA0 WO1 and CCL LUT0-IN1."
},
{
"number": "32",
"name": "PA2",
"type": "bidirectional",
"description": "General-purpose I/O pin PA2 with alternate functions TWI0 SDA (master/slave), USART0 XCK, TCA0 WO2, TCB0 WO, EVSYS EVOUTA and CCL LUT0-IN2; PA2 supports full asynchronous interrupt detection."
},
{
"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-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 VQFN package has an exposed center pad (3.1x3.1 mm per the package drawing). It is not a numbere; The per-pin power domain (GPIO on VDD vs. GPIO on AVDD) cannot be assigned from the text extract bec; The page 15 pin diagram is scrambled in the text extract. Pin numbers were taken from the TQFP32/VQF",
"exposed pad 33 added from the footprint",
"1/33 pins cited to the wrong page (name found elsewhere): ['18:AVDD@p518']"
],
"pages_sent": 89,
"cost_usd": 0.2726,
"at": "2026-10-30T16:20:26"
},
"datasheet": {
"url": "http://ww1.microchip.com/downloads/en/DeviceDoc/ATmega3208-3209-Data-Sheet-DS40002174A.pdf",
"pages": 547,
"sha256": "8964762f5bd2fdc0",
"source_tier": "mfr"
},
"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": [
{
"file": "atmega3208-mur.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.875
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "5fa713ea46b36980895812ed853577889b7cb06d275041a39b99bc0be305dc79",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "atmega3208-mur-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
5.0,
5.0,
0.875
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "a7f2d48ea185e0be7d8d827c28bd3a95d52efa8656b38a55fc4b0639999f7902",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "RXB",
"source_page": 530,
"D": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 5.0,
"range_mm": [
null,
null
]
},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
]
},
"A": {
"nom_mm": 0.85,
"range_mm": [
0.8,
0.9
]
},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "atmega3208-mur.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
],
"by": "factory/package_fit.py"
}
}
}
}