component
MAX3221ECUE+T
Public Made by Adomby adom
Maxim Integrated Pre-ordered Chips, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"description": "Maxim Integrated Pre-ordered Chips, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
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"interface ics",
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"component": {
"mpn": "MAX3221ECUE+T",
"manufacturer": "Maxim Integrated",
"package": "TSSOP-16",
"pin_count": 16,
"category": "Interface ICs",
"subcategory": "Pre-ordered Chips",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/max3221e-max3243e.pdf",
"parts": {
"symbol": "max3221ecue-t.kicad_sym",
"footprint": "max3221ecue-t.kicad_mod",
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"model_3d_step": "max3221ecue-t-etched.step",
"model_3d_step_plain": "max3221ecue-t.step",
"lbr": "max3221ecue-t.lbr"
},
"distributor_links": {
"lcsc": "C2671492",
"digikey": "MAX3221ECUE+TTR-ND",
"mouser": "700-MAX3221ECUET"
},
"distributor_check": {
"checked_at": "2026-10-31T00:13:20Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "MAX3221ECUE+TTR-ND",
"status": "found"
},
"mouser": {
"pn": "700-MAX3221ECUET",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "EN",
"type": "input",
"description": "Receiver enable control: drive low for normal operation, drive high to force the receiver outputs (R_OUT) into a high-impedance state."
},
{
"number": "2",
"name": "C1+",
"type": "passive",
"description": "Positive terminal of the voltage doubler charge-pump capacitor (C1, 0.1µF for 3.3V operation)."
},
{
"number": "3",
"name": "V+",
"type": "power_out",
"description": "+5.5V generated by the charge pump over the +3.0V to +5.5V VCC range."
},
{
"number": "4",
"name": "C1-",
"type": "passive",
"description": "Negative terminal of the voltage doubler charge-pump capacitor."
},
{
"number": "5",
"name": "C2+",
"type": "passive",
"description": "Positive terminal of the inverting charge-pump capacitor."
},
{
"number": "6",
"name": "C2-",
"type": "passive",
"description": "Negative terminal of the inverting charge-pump capacitor."
},
{
"number": "7",
"name": "V-",
"type": "power_out",
"description": "-5.5V generated by the inverting charge pump over the +3.0V to +5.5V VCC range."
},
{
"number": "8",
"name": "R1IN",
"type": "input",
"description": "RS-232 receiver input, rated for an input voltage range of ±25V."
},
{
"number": "9",
"name": "R1OUT",
"type": "output",
"description": "TTL/CMOS inverting three-state receiver output, high-impedance when EN is high."
},
{
"number": "10",
"name": "INVALID",
"type": "output",
"description": "Output of the valid signal detector: goes high when a valid RS-232 level is present on any receiver input, and is low otherwise."
},
{
"number": "11",
"name": "T1IN",
"type": "input",
"description": "TTL/CMOS transmitter input; the transmitter inputs do not have pull-up resistors."
},
{
"number": "12",
"name": "FORCEON",
"type": "input",
"description": "Drive high to override the automatic circuitry and keep transmitters and charge pump on (FORCEOFF must be high)."
},
{
"number": "13",
"name": "T1OUT",
"type": "output",
"description": "RS-232 transmitter output, forced to high impedance when FORCEOFF is driven low or AutoShutdown senses invalid levels on all receiver inputs."
},
{
"number": "14",
"name": "GND",
"type": "power_in",
"description": "Ground reference."
},
{
"number": "15",
"name": "VCC",
"type": "power_in",
"description": "+3.0V to +5.5V supply voltage."
},
{
"number": "16",
"name": "FORCEOFF",
"type": "input",
"description": "Force-off input, active low: drive low to shut down the transmitters, receivers, and on-board charge pump, overriding AutoShutdown and FORCEON."
}
],
"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 datasheet's ordering table lists the part as MAX3221ECUE+ (16 TSSOP). The trailing 'T' in MAX322; The pinout is taken from the Pin Description table, which covers the MAX3221E SSOP/TSSOP package joi",
"2/16 pins cited to the wrong page (name found elsewhere): ['8:R1IN@p6', '9:R1OUT@p6']"
],
"pages_sent": 19,
"cost_usd": 0.1072,
"at": "2026-10-31T00:13:08"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/max3221e-max3243e.pdf",
"pages": 19,
"sha256": "05825bd0ffbc0555",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 16,
"described": 16,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
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}