component
SN75176BM
Public Made by Adomby adom
HGSEMI RS-485 / RS-422 ICs, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745
{
"schema_version": 1,
"type": "component",
"slug": "sn75176bm",
"title": "SN75176BM",
"brief": "HGSEMI RS-485 / RS-422 ICs, SOP-8. 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",
"interface",
"sn75176bm",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "SN75176BM",
"manufacturer": "HGSEMI",
"package": "SOP-8",
"pin_count": 8,
"category": "Interface",
"subcategory": "RS-485 / RS-422 ICs",
"datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8770707219660980224",
"parts": {
"symbol": "sn75176bm.kicad_sym",
"footprint": "sn75176bm.kicad_mod",
"model_3d": "sn75176bm-hero.glb",
"model_3d_plain": "sn75176bm-etched.glb",
"model_3d_step": "sn75176bm-etched.step",
"model_3d_step_plain": "sn75176bm.step",
"lbr": "sn75176bm.lbr"
},
"distributor_links": {
"lcsc": "C5310760"
},
"distributor_check": {
"checked_at": "2026-10-19T05:07:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
},
"mouser": {
"pn": null,
"status": "no match"
}
},
"pins": [
{
"number": "1",
"name": "RO",
"type": "output",
"description": "Receiver output: when /RE is low, RO is high if A - B ≥ -50mV and low if A - B ≤ -200mV."
},
{
"number": "2",
"name": "/RE",
"type": "input",
"description": "Receiver output enable: driving /RE low enables RO, and RO is high impedance when /RE is high; driving /RE high and DE low puts the device into low-power shutdown mode."
},
{
"number": "3",
"name": "DE",
"type": "input",
"description": "Driver output enable: driving DE high enables the driver outputs, which are high impedance when DE is low; driving /RE high and DE low puts the device into low-power shutdown mode."
},
{
"number": "4",
"name": "DI",
"type": "input",
"description": "Driver input: with DE high, a low on DI forces the noninverting output low and the inverting output high."
},
{
"number": "5",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device."
},
{
"number": "6",
"name": "A",
"type": "bidirectional",
"description": "Noninverting receiver input and noninverting driver output; the receiver input resistance is specified for -7V ≤ VCM ≤ 12V."
},
{
"number": "7",
"name": "B",
"type": "bidirectional",
"description": "Inverting receiver input and inverting driver output; the receiver input resistance is specified for -7V ≤ VCM ≤ 12V."
},
{
"number": "8",
"name": "VCC",
"type": "power_in",
"description": "Positive supply; the absolute maximum supply voltage is +7V."
}
],
"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 MPN as given (SN75176BM) does not appear verbatim in the ordering table. The closest SOP-8 entry; The datasheet's pin assignment is shared by DIP-8, SOP-8 and MSOP-8. The pin table is on page 2, and; Pin descriptions are condensed from the pin description table. Pin 1 text in the source contains an "
],
"pages_sent": 11,
"cost_usd": 0.036,
"at": "2026-10-19T05:07:08"
},
"datasheet": {
"url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8770707219660980224",
"pages": 11,
"sha256": "7d4bdeed8f8cd636",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 8,
"described": 8,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "sn75176bm.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "sn75176bm-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6,
4.9,
1.75
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "cb0729b6bf66e867e8265a16e0749325a2238a7bf612aadfbbf0c72b3472cb10",
"checked": "2026-10-19",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "HGSEMI",
"Package": "SOP-8",
"Category": "Interface",
"Pins": "8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "7d4bdeed8f8cd636827d9cf07e8071c4276e7f96650bffa599e53b988f4f0799",
"rows": [
{
"name": "Supply Voltage",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Control Input Voltage (/RE, DE)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Driver Input Voltage (DI)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Driver Output Voltage (A,B)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -13,
"typ": null,
"max": 13,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Receiver Input Voltage (A,B)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -13,
"typ": null,
"max": 13,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Receiver Output Voltage (RO)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": null,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating Temperature (SN75176B)",
"symbol": "TOPR",
"kind": "recommended_operating",
"unit": "℃",
"min": 0,
"typ": null,
"max": 70,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage Temperature",
"symbol": "TSTG",
"kind": "absolute_maximum",
"unit": "℃",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Lead Temperature (Soldering, 10 seconds)",
"symbol": "",
"kind": "absolute_maximum",
"unit": "℃",
"min": null,
"typ": null,
"max": 260,
"conditions": "Soldering, 10 seconds",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Differential Driver Output",
"symbol": "VOD2",
"kind": "electrical",
"unit": "V",
"min": 1.8,
"typ": null,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Change in Magnitude of Differential Output Voltage",
"symbol": "ΔVOD",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.2,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver Common-Mode Output Voltage",
"symbol": "VOC",
"kind": "electrical",
"unit": "V",
"min": 1,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Change in Magnitude of Common-Mode Voltage",
"symbol": "ΔVOC",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.2,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input High Voltage",
"symbol": "VIH",
"kind": "electrical",
"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "DE, DI, /RE",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input Low Voltage",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "DE, DI, /RE",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver Input Current (A and B)",
"symbol": "IIN1",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 150,
"conditions": "VIN=12V DE=0V, Vcc=0V/5.25V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver Input Current (A and B)",
"symbol": "IIN1",
"kind": "electrical",
"unit": "µA",
"min": -150,
"typ": null,
"max": null,
"conditions": "VIN=-7V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver Short-Circuit Output Current",
"symbol": "IOSD",
"kind": "electrical",
"unit": "mA",
"min": -100,
"typ": null,
"max": 100,
"conditions": "A and B Short-Circuit",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Receiver Differential Threshold Voltage",
"symbol": "VTH",
"kind": "electrical",
"unit": "mV",
"min": -200,
"typ": -125,
"max": -50,
"conditions": "-7V≤VCM≤12V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Receiver Output Low Voltage",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "IO=4mA, VID=-200mV",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Three-State Output Current at Receiver",
"symbol": "IOZR",
"kind": "electrical",
"unit": "µA",
"min": -1,
"typ": null,
"max": 1,
"conditions": "0.4V≤Vo≤2.4V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Receiver Input Resistance",
"symbol": "RIN",
"kind": "electrical",
"unit": "KΩ",
"min": 96,
"typ": null,
"max": null,
"conditions": "-7V≤VCM≤12V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Receiver Output Short-Circuit Current",
"symbol": "IOSR",
"kind": "electrical",
"unit": "mA",
"min": -7,
"typ": null,
"max": 100,
"conditions": "0V≤VRO≤VCC",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply Current (DE=VCC)",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 450,
"max": 900,
"conditions": "DE=VCC No Load /RE=DI=VCC/GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply Current (DE=GND)",
"symbol": "ICC",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 450,
"max": 600,
"conditions": "DE=GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply Current in Shutdown Mode",
"symbol": "ISHDN",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 10,
"conditions": "DE=GND, /RE=VCC, DI=VCC/GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver Input to Output",
"symbol": "tDPLH",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 30,
"max": 60,
"conditions": "Figure 3 and 5, RDIFF=54Ω, CL1=CL2=100pF",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver Output Skew",
"symbol": "tDSKEW",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver Rise or Fall Time",
"symbol": "tDR, tDF",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 30,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Maximum Data Rate",
"symbol": "FMAX",
"kind": "timing",
"unit": "Mbps",
"min": 10,
"typ": null,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver Enable to Output High",
"symbol": "tDZH",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 70,
"conditions": "Figure 4 and 6, CL=100pF S2 closed",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver Disable Time from High",
"symbol": "tDHZ",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 70,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver Enable to Output Low",
"symbol": "tDZL",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 70,
"conditions": "Figure 4 and 6, CL=100pF S1 closed",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver Disable Time from Low",
"symbol": "tDLZ",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": null,
"max": 70,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Input to Output",
"symbol": "tRPLH, tRPHL",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 90,
"max": 250,
"conditions": "Figure 7 and 9, |VID| ≥ 2.0V, rise and fall time of VID≦15ns",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Enable to Output Low",
"symbol": "tRZL",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 30,
"max": 70,
"conditions": "Figure 2 and 8, CRL=15pF S1 closed",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Disable Time from Low",
"symbol": "tRLZ",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 30,
"max": 70,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Enable to Output High",
"symbol": "tRZH",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 30,
"max": 70,
"conditions": "Figure 2 and 8, CRL=15pF S2 closed",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Disable Time from High",
"symbol": "tRHZ",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 30,
"max": 70,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Time to Shutdown",
"symbol": "tSHDN",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 200,
"max": 600,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Differential Skew",
"symbol": "tRSKD",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 30,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver Input Hysteresis",
"symbol": "ΔVTH",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 40,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "DI Input Hysteresis",
"symbol": "VHYS",
"kind": "electrical",
"unit": "mV",
"min": null,
"typ": 100,
"max": null,
"conditions": "",
"source_page": 4,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"sn75176bm"
],
"discovery_pitch": "SN75176BM (HGSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
"author": {
"name": "Ray",
"email": "[email protected]"
},
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"sn75176bm.kicad_sym",
"sn75176bm.kicad_mod",
"sn75176bm.glb",
"sn75176bm.step",
"sn75176bm.lbr",
"docs/hero.png",
"docs/sn75176bm-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"sn75176bm-hero.glb",
"sn75176bm-hero.overlay.json",
"sn75176bm-etched.glb"
],
"visibility": {
"public": true
}
}