component
NCN5151MNTWG
Public Made by Adomby adom
onsemi Interface - Specialized, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "ncn5151mntwg",
"title": "NCN5151MNTWG",
"brief": "onsemi Interface - Specialized, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
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"communication interface chip-uart-485-232",
"ncn5151mntwg",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "NCN5151MNTWG",
"manufacturer": "onsemi",
"package": "QFN-20-EP(4x4)",
"pin_count": 21,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "Interface - Specialized",
"datasheet": "https://www.onsemi.com/pdf/datasheet/ncn5151mntw-d.pdf",
"parts": {
"symbol": "ncn5151mntwg.kicad_sym",
"footprint": "ncn5151mntwg.kicad_mod",
"model_3d": "ncn5151mntwg-hero.glb",
"model_3d_plain": "ncn5151mntwg-etched.glb",
"model_3d_step": "ncn5151mntwg-etched.step",
"model_3d_step_plain": "ncn5151mntwg.step",
"lbr": "ncn5151mntwg.lbr"
},
"distributor_links": {
"lcsc": "C904368",
"digikey": "488-NCN5151MNTWGTR-ND",
"mouser": "863-NCN5151MNTWG"
},
"distributor_check": {
"checked_at": "2026-10-30T21:47:23Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "488-NCN5151MNTWGTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "863-NCN5151MNTWG",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device; all voltages in the datasheet are referenced to GND."
},
{
"number": "2",
"name": "BUSL1",
"type": "passive",
"description": "Bus line connection made through series resistors (typically two 220 Ω); connections are polarity independent and the absolute maximum bus voltage |BUSL1 − BUSL2| is 50 V."
},
{
"number": "3",
"name": "BUSL2",
"type": "passive",
"description": "Bus line connection made through series resistors (typically two 220 Ω); connections are polarity independent and the absolute maximum bus voltage |BUSL1 − BUSL2| is 50 V."
},
{
"number": "4",
"name": "VB",
"type": "power_out",
"description": "Rectified bus voltage from the internal bridge rectifier; the VB monitor enables PMODE at 8.0 V to 10.5 V (9.4 V typical)."
},
{
"number": "5",
"name": "PMODE",
"type": "output",
"description": "Power mode output indicating the VB voltage level; the absolute maximum voltage on this pin is 3.6 V and its high level is VDD − 0.3 V minimum."
},
{
"number": "6",
"name": "STC",
"type": "output",
"description": "Storage capacitor pin to be connected to a bulk storage capacitor (typically 100 to 470 µF, minimum 10 µF), clamped by a shunt regulator to VSTC."
},
{
"number": "7",
"name": "RIDD",
"type": "input",
"description": "Mark current adjustment pin to be connected to the programming resistor; the voltage on RIDD is 1.15 V to 1.25 V (1.2 V typical)."
},
{
"number": "8",
"name": "PF",
"type": "output",
"description": "Active-low power-fail output that is disabled in low power mode; its high level is VIO − 0.6 V minimum and it is pulled to ground during 2WLPM or 3WLPM operation."
},
{
"number": "9",
"name": "SC",
"type": "output",
"description": "Mark bus voltage level storage capacitor pin to be connected to a ceramic capacitor (typically 220 nF, range 100 nF to 330 nF)."
},
{
"number": "10",
"name": "2WLPM",
"type": "input",
"description": "2-wire low power mode selection input; the high level is 0.8 × VDD minimum to VDD, and the absolute maximum voltage is 3.6 V."
},
{
"number": "11",
"name": "TXI",
"type": "output",
"description": "Inverted UART data output; the high level is VIO − 0.6 V minimum and the low level is 0.35 V maximum at 100 µA."
},
{
"number": "12",
"name": "TX",
"type": "output",
"description": "UART data output; the high level is VIO − 0.6 V minimum and the low level is 0.35 V maximum at 100 µA."
},
{
"number": "13",
"name": "VIO",
"type": "input",
"description": "I/O supply pin that sets the high level of RX, RXI, TX, TXI and PF; the VIO pin voltage range is 2.5 V to 3.8 V."
},
{
"number": "14",
"name": "NC",
"type": "unconnected",
"description": "Leave this pin floating."
},
{
"number": "15",
"name": "3WLPM",
"type": "input",
"description": "3-wire low power mode selection input; the high level is 0.8 × VDD minimum to VDD, and the absolute maximum voltage is 3.6 V."
},
{
"number": "16",
"name": "VDD",
"type": "power_out",
"description": "Output of the integrated 3.3 V LDO regulator (3.1 V to 3.6 V, peak 15 mA); connect to a minimum 1 µF decoupling capacitor."
},
{
"number": "17",
"name": "RX",
"type": "input",
"description": "UART data input; the high level is VIO − 0.8 V minimum to 5.5 V and the low level is 0 V to 0.8 V."
},
{
"number": "18",
"name": "RXI",
"type": "input",
"description": "Inverted UART data input; the high level is VIO − 0.8 V minimum to 5.5 V and the low level is 0 V to 0.8 V."
},
{
"number": "19",
"name": "OD",
"type": "output",
"description": "Open-drain output (active low) used for slave-to-master communication in 3-wire low power mode; the absolute maximum voltage is 40 V and the current is limited to 20 mA."
},
{
"number": "20",
"name": "RIS",
"type": "input",
"description": "Modulation current adjustment pin; with RRIS = 100 Ω the typical modulation current IMC is 15 mA (12.5 mA to 18 mA), and the RIS voltage is 1.2 V to 1.6 V."
},
{
"number": "21",
"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 package drawing on page 20 shows an exposed pad (EP) on the QFN20 4x4 package, but the datasheet; The datasheet labels the package NQFP20 / QFN20 4x4 (case 485E), which matches the package hint, and; Some KiCad electrical types are judgment calls because the datasheet uses general categories (Output",
"exposed pad 21 added from the footprint"
],
"pages_sent": 21,
"cost_usd": 0.0997,
"at": "2026-10-30T21:47:10"
},
"datasheet": {
"url": "https://www.onsemi.com/pdf/datasheet/ncn5151mntw-d.pdf",
"pages": 21,
"sha256": "c25c805204fe54eb",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 21,
"described": 21,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "ncn5151mntwg.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
0.77
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "ncn5151mntwg-etched.step",
"role": "eda",
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "f0f77e038044605764ef3c62b40ee47eb1dc73bdbc861ce99bc9505c500450c3",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
],
"package_dims": {
"package_code": "QFN20, 4x4, 0.5P (CASE 485E)",
"source_page": 20,
"D": {
"nom_mm": 4,
"range_mm": [
null,
null
]
},
"E1": {
"nom_mm": 4,
"range_mm": [
null,
null
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},
"e": {
"nom_mm": 0.5,
"range_mm": [
null,
null
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},
"A": {
"nom_mm": 0.9,
"range_mm": [
0.8,
1
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},
"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
"file": "ncn5151mntwg.step",
"verdict": "PASS",
"reasons": [
"height within the datasheet's package drawing"
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"by": "factory/package_fit.py"
}
}
},
"metadata": {
"specs": {
"Manufacturer": "onsemi",
"Package": "QFN-20-EP(4x4)",
"Category": "Communication Interface Chip/UART/485/232",
"Pins": "21"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "c25c805204fe54eb35ff4b47b05fa35d94ef0e203bc19ab0b1167ec668d44214",
"rows": [
{
"name": "Ambient temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Bus voltage, M-Bus mode 1-2 UL",
"symbol": "VBUS",
"kind": "recommended_operating",
"unit": "V",
"min": 9.2,
"typ": null,
"max": 42,
"conditions": "M-Bus mode 1-2 UL",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Bus voltage, M-Bus mode 3-6 UL",
"symbol": "VBUS",
"kind": "recommended_operating",
"unit": "V",
"min": 9.7,
"typ": null,
"max": 42,
"conditions": "M-Bus mode 3-6 UL",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Bus voltage, 2 and 3-Wire Low Power Mode 1-2 UL",
"symbol": "VBUS",
"kind": "recommended_operating",
"unit": "V",
"min": 4.75,
"typ": null,
"max": 10,
"conditions": "2 and 3-Wire Low Power Mode 1-2 UL",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VSTC in Low Power Mode",
"symbol": "VSTC,LP",
"kind": "recommended_operating",
"unit": "V",
"min": 3.8,
"typ": null,
"max": null,
"conditions": "to guarantee min VDD of 3.1 V @ IDD = 15 mA peak",
"source_page": 4,
"source": "datasheet"
},
{
"name": "VIO pin voltage",
"symbol": "VIO",
"kind": "recommended_operating",
"unit": "V",
"min": 2.5,
"typ": null,
"max": 3.8,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "OD pin voltage",
"symbol": "VOD",
"kind": "recommended_operating",
"unit": "V",
"min": 0,
"typ": null,
"max": 10,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Latch-up",
"symbol": "LU",
"kind": "recommended_operating",
"unit": "mA",
"min": -100,
"typ": null,
"max": 100,
"conditions": "EIA/JESD78",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Storage temperature",
"symbol": "TS",
"kind": "absolute_maximum",
"unit": "°C",
"min": -55,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Bus voltage",
"symbol": "VBUS",
"kind": "absolute_maximum",
"unit": "V",
"min": -50,
"typ": null,
"max": 50,
"conditions": "|BUSL1 − BUSL2|",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on pin TX, TXI",
"symbol": "VTX, VTXI",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7.5,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on pin RX, RXI, VIO",
"symbol": "VRX, VRXI, VIO",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 5.5,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on pin OD",
"symbol": "VOD",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 40,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on pin 3WLPM",
"symbol": "V3WLPM",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on pin 2WLPM",
"symbol": "V2WLPM",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage on pin PMODE",
"symbol": "VPMODE",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 3.6,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Voltage drop over bus rectifier (VBUS − VB)",
"symbol": "ΔVBR",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.25,
"conditions": "with RIDD = 4.02 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Voltage drop over CS1 (VB − VSTC)",
"symbol": "ΔVCS",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.3,
"conditions": "RIDD ≤ 13 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Voltage drop over CS1 (VB − VSTC)",
"symbol": "ΔVCS",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 1.7,
"conditions": "RIDD ≤ 4.02 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Total current drawn from the bus, Mark State",
"symbol": "IBUS",
"kind": "electrical",
"unit": "mA",
"min": 1.3,
"typ": null,
"max": 1.5,
"conditions": "RIDD = 30 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Total current drawn from the bus, Mark State",
"symbol": "IBUS",
"kind": "electrical",
"unit": "mA",
"min": 2.7,
"typ": null,
"max": 3,
"conditions": "RIDD = 13 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Total current drawn from the bus, Mark State",
"symbol": "IBUS",
"kind": "electrical",
"unit": "mA",
"min": 4.1,
"typ": null,
"max": 4.5,
"conditions": "RIDD = 8.45 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Total current drawn from the bus, Mark State",
"symbol": "IBUS",
"kind": "electrical",
"unit": "mA",
"min": 5.5,
"typ": null,
"max": 6,
"conditions": "RIDD = 6.19 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Total current drawn from the bus, Mark State",
"symbol": "IBUS",
"kind": "electrical",
"unit": "mA",
"min": 6.8,
"typ": null,
"max": 7.5,
"conditions": "RIDD = 4.87 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Total current drawn from the bus, Mark State",
"symbol": "IBUS",
"kind": "electrical",
"unit": "mA",
"min": 8.2,
"typ": null,
"max": 9,
"conditions": "RIDD = 4.02 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Bus current stability",
"symbol": "ΔIBUS",
"kind": "electrical",
"unit": "%",
"min": 0.2,
"typ": null,
"max": 2,
"conditions": "over ΔVBUS = 10 V, RX/RXI = mark",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Idle current available from STC and VDD",
"symbol": "ISTC",
"kind": "electrical",
"unit": "mA",
"min": 0.88,
"typ": 1,
"max": 1.2,
"conditions": "RIDD = 30 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Idle current available from STC and VDD",
"symbol": "ISTC",
"kind": "electrical",
"unit": "mA",
"min": 2.1,
"typ": 2.3,
"max": 2.6,
"conditions": "RIDD = 13 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Idle current available from STC and VDD",
"symbol": "ISTC",
"kind": "electrical",
"unit": "mA",
"min": 3.1,
"typ": 3.6,
"max": 4,
"conditions": "RIDD = 8.45 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Idle current available from STC and VDD",
"symbol": "ISTC",
"kind": "electrical",
"unit": "mA",
"min": 4.2,
"typ": 4.8,
"max": 5.4,
"conditions": "RIDD = 6.19 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Idle current available from STC and VDD",
"symbol": "ISTC",
"kind": "electrical",
"unit": "mA",
"min": 5.3,
"typ": 6.1,
"max": 6.9,
"conditions": "RIDD = 4.87 k",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Idle current available from STC and VDD",
"symbol": "ISTC",
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"name": "Peak current that can be supplied by VDD",
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"name": "Power-on reset threshold to disconnect VDD",
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"min": 8.5,
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"min": 8,
"typ": 9.4,
"max": 10.5,
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"min": null,
"typ": 38,
"max": null,
"conditions": "2S2P test boards per JEDEC JESD51",
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"source": "datasheet"
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