component
BU91795MUF-ME2
Public Made by Adomby adom
ROHM Semicon LCD Drivers, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "bu91795muf-me2",
"version": "0.1.0",
"type": "component",
"description": "ROHM Semicon LCD Drivers, QFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"nixie tube driver-led driver",
"bu91795muf-me2",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"bu91795muf-me2.kicad_sym",
"bu91795muf-me2.kicad_mod",
"bu91795muf-me2.glb",
"bu91795muf-me2.step",
"bu91795muf-me2.lbr",
"docs/hero.png",
"docs/bu91795muf-me2-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"bu91795muf-me2-hero.glb",
"bu91795muf-me2-hero.overlay.json",
"bu91795muf-me2-etched.glb"
],
"component": {
"mpn": "BU91795MUF-ME2",
"manufacturer": "ROHM Semicon",
"package": "QFN-24-EP(4x4)",
"pin_count": 25,
"category": "Nixie Tube Driver/LED Driver",
"subcategory": "LCD Drivers",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/26e09d9693732ad921a83a92a2f3b690.pdf",
"parts": {
"symbol": "bu91795muf-me2.kicad_sym",
"footprint": "bu91795muf-me2.kicad_mod",
"model_3d": "bu91795muf-me2-hero.glb",
"model_3d_plain": "bu91795muf-me2-etched.glb",
"model_3d_step": "bu91795muf-me2-etched.step",
"model_3d_step_plain": "bu91795muf-me2.step",
"lbr": "bu91795muf-me2.lbr"
},
"distributor_links": {
"lcsc": "C5336594",
"digikey": "BU91795MUF-ME2TR-ND",
"mouser": "755-BU91795MUF-ME2"
},
"distributor_check": {
"checked_at": "2026-10-24T00:16:54Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "BU91795MUF-ME2TR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "755-BU91795MUF-ME2",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "OSCIN",
"type": "input",
"description": "External clock input, selectable by command against the internal clock; must be connected to VSS when using the internal oscillator."
},
{
"number": "2",
"name": "SCL",
"type": "input",
"description": "Serial clock terminal of the 2-wire serial interface (VIH 0.7VDD min, VIL 0.3VDD max)."
},
{
"number": "3",
"name": "SDA",
"type": "bidirectional",
"description": "Serial data in/out terminal of the 2-wire serial interface, with VOL max 0.4V at 3mA load."
},
{
"number": "4",
"name": "SEG0",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "5",
"name": "SEG1",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "6",
"name": "SEG2",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "7",
"name": "SEG3",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "8",
"name": "SEG4",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "9",
"name": "SEG5",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "10",
"name": "SEG6",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "11",
"name": "SEG7",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "12",
"name": "SEG8",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "13",
"name": "SEG9",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "14",
"name": "SEG10",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "15",
"name": "SEG11",
"type": "output",
"description": "Segment output for LCD driving; leave open when unused."
},
{
"number": "16",
"name": "COM0",
"type": "output",
"description": "Common output for LCD driving; leave open when unused."
},
{
"number": "17",
"name": "COM1",
"type": "output",
"description": "Common output for LCD driving; leave open when unused."
},
{
"number": "18",
"name": "COM2",
"type": "output",
"description": "Common output for LCD driving; leave open when unused."
},
{
"number": "19",
"name": "COM3",
"type": "output",
"description": "Common output for LCD driving; leave open when unused."
},
{
"number": "20",
"name": "VLCD",
"type": "power_in",
"description": "Power supply for LCD driving, 0V to VDD-2.4V (VDD-VLCD must be at least 2.4V)."
},
{
"number": "21",
"name": "VDD",
"type": "power_in",
"description": "Power supply, 2.5V to 6.0V recommended (absolute maximum 7.0V)."
},
{
"number": "22",
"name": "VSS",
"type": "power_in",
"description": "Ground (0V reference)."
},
{
"number": "23",
"name": "TEST1",
"type": "input",
"description": "Test input for ROHM use only; must be connected to VSS."
},
{
"number": "24",
"name": "TEST2",
"type": "input",
"description": "POR enable setting: VDD disables POR (software reset then required), VSS enables POR; connect to VSS when unused."
},
{
"number": "25",
"name": "EXT-PAD",
"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 exposed pad has no pin number in the datasheet; 'EP' is used as a label. Its type is set to pass; The datasheet covers BU91795MUF-M. The MPN BU91795MUF-ME2 is the E2 embossed tape and reel variant o"
],
"pages_sent": 7,
"cost_usd": 0.0756,
"at": "2026-10-24T00:16:39"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/26e09d9693732ad921a83a92a2f3b690.pdf",
"pages": 29,
"sha256": "d33a788a5e596d3e",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "bu91795muf-me2.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-10-24",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bu91795muf-me2-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "fbc81b7fc4189fc680243fec20bbaaf3a5052ed87895656591f91d92040e6d37",
"checked": "2026-10-24",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}