component
MAX3222EIPWR
Public Made by Adomby adom
Texas Instruments RS232 ICs, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856
{
"schema_version": 1,
"type": "component",
"slug": "max3222eipwr",
"title": "MAX3222EIPWR",
"brief": "Texas Instruments RS232 ICs, TSSOP-20. 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 ics",
"max3222eipwr",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "MAX3222EIPWR",
"manufacturer": "Texas Instruments",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Interface ICs",
"subcategory": "RS232 ICs",
"datasheet": "https://www.ti.com/lit/ds/symlink/max3222ei.pdf",
"parts": {
"symbol": "max3222eipwr.kicad_sym",
"footprint": "max3222eipwr.kicad_mod",
"model_3d": "max3222eipwr-hero.glb",
"model_3d_plain": "max3222eipwr-etched.glb",
"model_3d_step": "max3222eipwr-etched.step",
"model_3d_step_plain": "max3222eipwr.step",
"lbr": "max3222eipwr.lbr"
},
"distributor_links": {
"lcsc": "C527703",
"digikey": "296-19822-2-ND",
"mouser": "595-MAX3222EIPWR"
},
"distributor_check": {
"checked_at": "2026-10-23T03:03:48Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-19822-2-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-MAX3222EIPWR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "EN",
"type": "input",
"description": "Receiver enable input; set low to enable receiver outputs, high places ROUT outputs in high-impedance state (VIH 2 V min at 3.3 V, 2.4 V at 5 V; accepts up to 5.5 V)."
},
{
"number": "2",
"name": "C1+",
"type": "passive",
"description": "Positive terminal of charge-pump capacitor C1 (0.1 µF at 3.3 V, 0.047 µF at 5 V)."
},
{
"number": "3",
"name": "V+",
"type": "power_out",
"description": "Positive charge-pump output supply (absolute maximum 7 V), decoupled with capacitor C3 to VCC or GND; lowered to VCC in power down."
},
{
"number": "4",
"name": "C1−",
"type": "passive",
"description": "Negative terminal of charge-pump capacitor C1."
},
{
"number": "5",
"name": "C2+",
"type": "passive",
"description": "Positive terminal of charge-pump capacitor C2 (0.1 µF at 3.3 V, 0.33 µF at 5 V)."
},
{
"number": "6",
"name": "C2−",
"type": "passive",
"description": "Negative terminal of charge-pump capacitor C2."
},
{
"number": "7",
"name": "V−",
"type": "power_out",
"description": "Negative charge-pump output supply (absolute maximum −7 V), decoupled with capacitor C4 to GND; raised toward GND in power down."
},
{
"number": "8",
"name": "DOUT2",
"type": "output",
"description": "RS-232 driver 2 output with ±15 kV HBM ESD protection, swing ±5 V min into 3 kΩ, high-impedance in power down."
},
{
"number": "9",
"name": "RIN2",
"type": "input",
"description": "RS-232 receiver 2 input with 5 kΩ typical input resistance, ±25 V input range and ±15 kV HBM ESD protection."
},
{
"number": "10",
"name": "ROUT2",
"type": "output",
"description": "Logic-level receiver 2 output, high-impedance when EN is high."
},
{
"number": "11",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "12",
"name": "DIN2",
"type": "input",
"description": "Logic input for driver 2 (VIL 0.8 V max, accepts up to 5.5 V)."
},
{
"number": "13",
"name": "DIN1",
"type": "input",
"description": "Logic input for driver 1 (VIL 0.8 V max, accepts up to 5.5 V)."
},
{
"number": "14",
"name": "NC",
"type": "unconnected",
"description": "No internal connection."
},
{
"number": "15",
"name": "ROUT1",
"type": "output",
"description": "Logic-level receiver 1 output, high-impedance when EN is high."
},
{
"number": "16",
"name": "RIN1",
"type": "input",
"description": "RS-232 receiver 1 input with 5 kΩ typical input resistance, ±25 V input range and ±15 kV HBM ESD protection."
},
{
"number": "17",
"name": "DOUT1",
"type": "output",
"description": "RS-232 driver 1 output with ±15 kV HBM ESD protection, swing ±5 V min into 3 kΩ, high-impedance in power down."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Ground."
},
{
"number": "19",
"name": "VCC",
"type": "power_in",
"description": "Supply voltage, 3 V to 5.5 V (absolute maximum 6 V), bypassed with 0.1 µF."
},
{
"number": "20",
"name": "PWRDOWN",
"type": "input",
"description": "Power-down control input; low disables the charge pump and puts drivers in high impedance with 1 µA typical supply current while receivers stay active."
}
],
"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": [
"1/20 pins cited to the wrong page (name found elsewhere): ['19:VCC@p4']"
],
"pages_sent": 22,
"cost_usd": 0.1584,
"at": "2026-10-23T03:03:28"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/max3222ei.pdf",
"pages": 22,
"sha256": "d7588c1b5a6ac26a",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "max3222eipwr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "max3222eipwr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
6.4,
6.5,
1.2
],
"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "706be37319f5ec1c84f77a4a82c29ce3d3b0d9714463ded5374ca08ccce1fc03",
"checked": "2026-10-23",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "TSSOP-20",
"Category": "Interface ICs",
"Pins": "20"
},
"characteristics": {
"version": 1,
"source": "datasheet",
"datasheet_sha256": "d7588c1b5a6ac26acec5784b8988e50756c5288317dddbd0b48e52584d03c9e9",
"rows": [
{
"name": "Supply voltage range",
"symbol": "VCC",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Positive-output supply voltage range",
"symbol": "V+",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Supply voltage difference",
"symbol": "V+ - V-",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 13,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Input voltage range, driver (EN, PWRDOWN)",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "Driver (EN, PWRDOWN)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Input voltage range, receiver",
"symbol": "VI",
"kind": "absolute_maximum",
"unit": "V",
"min": -25,
"typ": null,
"max": 25,
"conditions": "Receiver",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Output voltage range, driver",
"symbol": "VO",
"kind": "absolute_maximum",
"unit": "V",
"min": -13.2,
"typ": null,
"max": 13.2,
"conditions": "Driver",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Package thermal impedance, PW package",
"symbol": "θJA",
"kind": "thermal",
"unit": "°C/W",
"min": null,
"typ": 83,
"max": null,
"conditions": "PW package",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Operating virtual junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": null,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Supply voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 3,
"typ": 3.3,
"max": 3.6,
"conditions": "VCC = 3.3 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply voltage",
"symbol": "VCC",
"kind": "recommended_operating",
"unit": "V",
"min": 4.5,
"typ": 5,
"max": 5.5,
"conditions": "VCC = 5 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "High-level input voltage DIN, EN, PWRDOWN",
"symbol": "VIH",
"kind": "recommended_operating",
"unit": "V",
"min": 2,
"typ": null,
"max": null,
"conditions": "VCC = 3.3 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "High-level input voltage DIN, EN, PWRDOWN",
"symbol": "VIH",
"kind": "recommended_operating",
"unit": "V",
"min": 2.4,
"typ": null,
"max": null,
"conditions": "VCC = 5 V",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Low-level input voltage DIN, EN, PWRDOWN",
"symbol": "VIL",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver and control input voltage",
"symbol": "VI",
"kind": "recommended_operating",
"unit": "V",
"min": 0,
"typ": null,
"max": 5.5,
"conditions": "DIN, EN, PWRDOWN",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Receiver input voltage",
"symbol": "VI",
"kind": "recommended_operating",
"unit": "V",
"min": -25,
"typ": null,
"max": 25,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Operating free-air temperature",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "MAX3222EI",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Input leakage current (EN, PWRDOWN)",
"symbol": "II",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": 0.01,
"max": 1,
"conditions": "",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply current",
"symbol": "ICC",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 0.3,
"max": 1,
"conditions": "No load, PWRDOWN at VCC",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Supply current (powered off)",
"symbol": "ICC",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": 1,
"max": 10,
"conditions": "No load, PWRDOWN at GND",
"source_page": 4,
"source": "datasheet"
},
{
"name": "Driver high-level output voltage",
"symbol": "VOH",
"kind": "electrical",
"unit": "V",
"min": 5,
"typ": 5.4,
"max": null,
"conditions": "DOUT at RL = 3 kΩ to GND, DIN = GND",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver low-level output voltage",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": -5.4,
"max": -5,
"conditions": "DOUT at RL = 3 kΩ to GND, DIN = VCC",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver high-level input current",
"symbol": "IIH",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": 0.01,
"max": 1,
"conditions": "VI = VCC",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver low-level input current",
"symbol": "IIL",
"kind": "electrical",
"unit": "μA",
"min": -1,
"typ": 0.01,
"max": 1,
"conditions": "VI at GND",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver short-circuit output current",
"symbol": "IOS",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 35,
"max": 60,
"conditions": "VO = 0 V, VCC = 3.6 V to 5.5 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver output resistance",
"symbol": "ro",
"kind": "electrical",
"unit": "Ω",
"min": 300,
"typ": null,
"max": null,
"conditions": "VCC, V+, and V- = 0 V, VO = ±2 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver output leakage current",
"symbol": "IOZ",
"kind": "electrical",
"unit": "μA",
"min": -25,
"typ": null,
"max": 25,
"conditions": "PWRDOWN = GND, VCC = 3 V to 3.6 V, VO = ±12 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Maximum data rate",
"symbol": "",
"kind": "timing",
"unit": "kbit/s",
"min": 250,
"typ": 500,
"max": null,
"conditions": "CL = 1000 pF, RL = 3 kΩ, One DOUT switching",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver pulse skew",
"symbol": "tsk(p)",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 300,
"max": null,
"conditions": "CL = 150 pF to 2500 pF, RL = 3 kΩ to 7 kΩ",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver slew rate, transition region",
"symbol": "SR(tr)",
"kind": "timing",
"unit": "V/μs",
"min": 6,
"typ": null,
"max": 30,
"conditions": "RL = 3 kΩ to 7 kΩ, VCC = 3.3 V, CL = 150 pF to 1000 pF",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Driver slew rate, transition region",
"symbol": "SR(tr)",
"kind": "timing",
"unit": "V/μs",
"min": 4,
"typ": null,
"max": 30,
"conditions": "RL = 3 kΩ to 7 kΩ, VCC = 3.3 V, CL = 150 pF to 2500 pF",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Receiver low-level output voltage",
"symbol": "VOL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.4,
"conditions": "IOL = 1.6 mA",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Positive-going input threshold voltage",
"symbol": "VIT+",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.5,
"max": 2.4,
"conditions": "VCC = 3.3 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Positive-going input threshold voltage",
"symbol": "VIT+",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 1.8,
"max": 2.4,
"conditions": "VCC = 5 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Negative-going input threshold voltage",
"symbol": "VIT-",
"kind": "electrical",
"unit": "V",
"min": 0.6,
"typ": 1.2,
"max": null,
"conditions": "VCC = 3.3 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Negative-going input threshold voltage",
"symbol": "VIT-",
"kind": "electrical",
"unit": "V",
"min": 0.8,
"typ": 1.5,
"max": null,
"conditions": "VCC = 5 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Input hysteresis (VIT+ - VIT-)",
"symbol": "Vhys",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": 0.3,
"max": null,
"conditions": "",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver output leakage current",
"symbol": "IOZ",
"kind": "electrical",
"unit": "μA",
"min": -10,
"typ": 0.05,
"max": 10,
"conditions": "EN = 1",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver input resistance",
"symbol": "ri",
"kind": "electrical",
"unit": "kΩ",
"min": 3,
"typ": 5,
"max": 7,
"conditions": "VI = ±3 V to ±25 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver propagation delay, low- to high-level output",
"symbol": "tPLH",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 300,
"max": null,
"conditions": "CL = 150 pF, See Figure 3",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver propagation delay, high- to low-level output",
"symbol": "tPHL",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 300,
"max": null,
"conditions": "CL = 150 pF, See Figure 3",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver output enable time",
"symbol": "ten",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 200,
"max": null,
"conditions": "CL = 150 pF, RL = 3 kΩ, See Figure 4",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver output disable time",
"symbol": "tdis",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 200,
"max": null,
"conditions": "CL = 150 pF, RL = 3 kΩ, See Figure 4",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Receiver pulse skew",
"symbol": "tsk(p)",
"kind": "timing",
"unit": "ns",
"min": null,
"typ": 300,
"max": null,
"conditions": "See Figure 3",
"source_page": 6,
"source": "datasheet"
},
{
"name": "ESD protection, driver outputs, HBM",
"symbol": "",
"kind": "electrical",
"unit": "kV",
"min": null,
"typ": 15,
"max": null,
"conditions": "Human-Body Model, DOUTx",
"source_page": 5,
"source": "datasheet"
},
{
"name": "ESD protection, receiver inputs, HBM",
"symbol": "",
"kind": "electrical",
"unit": "kV",
"min": null,
"typ": 15,
"max": null,
"conditions": "Human-Body Model, RINx",
"source_page": 6,
"source": "datasheet"
}
]
}
},
"variants": [],
"sections": [
"hero",
"viewers",
"readme",
"breadcrumbs",
"info"
],
"discovery_triggers": [
"max3222eipwr"
],
"discovery_pitch": "MAX3222EIPWR (Texas Instruments) 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",
"max3222eipwr.kicad_sym",
"max3222eipwr.kicad_mod",
"max3222eipwr.glb",
"max3222eipwr.step",
"max3222eipwr.lbr",
"docs/hero.png",
"docs/max3222eipwr-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"max3222eipwr-hero.glb",
"max3222eipwr-hero.overlay.json",
"max3222eipwr-etched.glb"
],
"visibility": {
"public": true
}
}