component
MAX3223ECUP+
Public Made by Adomby adom
Maxim Integrated Pre-ordered Chips, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "max3223ecup",
"version": "0.1.0",
"type": "component",
"description": "Maxim Integrated Pre-ordered Chips, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"interface ics",
"max3223ecup+",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"files": [
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"component": {
"mpn": "MAX3223ECUP+",
"manufacturer": "Maxim Integrated",
"package": "TSSOP-20",
"pin_count": 20,
"category": "Interface ICs",
"subcategory": "Pre-ordered Chips",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/max3221-max3243.pdf",
"parts": {
"symbol": "max3223ecup.kicad_sym",
"footprint": "max3223ecup.kicad_mod",
"model_3d": "max3223ecup-hero.glb",
"model_3d_plain": "max3223ecup-etched.glb",
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"lbr": "max3223ecup.lbr"
},
"distributor_links": {
"lcsc": "C1544420",
"digikey": "MAX3223ECUP+-ND",
"mouser": "700-MAX3223ECUP"
},
"distributor_check": {
"checked_at": "2026-10-30T17:19:31Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "MAX3223ECUP+-ND",
"status": "found"
},
"mouser": {
"pn": "700-MAX3223ECUP",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "EN",
"type": "input",
"description": "Receiver enable control: drive low for normal receiver operation and drive high to force the receiver outputs into a high-Z 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; V+ decays to VCC when the device is shut down."
},
{
"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 (C2)."
},
{
"number": "6",
"name": "C2-",
"type": "passive",
"description": "Negative terminal of the inverting charge-pump capacitor (C2)."
},
{
"number": "7",
"name": "V-",
"type": "power_out",
"description": "-5.5V generated by the charge pump; V- decays to ground when the device is shut down."
},
{
"number": "8",
"name": "T2OUT",
"type": "output",
"description": "RS-232 transmitter 2 output, forced to high impedance when FORCEOFF is low or AutoShutdown disables the transmitters."
},
{
"number": "9",
"name": "R2IN",
"type": "input",
"description": "RS-232 receiver 2 input, tolerant of ±25V per the input voltage range and with approximately 5kΩ input resistance."
},
{
"number": "10",
"name": "R2OUT",
"type": "output",
"description": "TTL/CMOS receiver 2 output (inverting, three-state controlled by EN)."
},
{
"number": "11",
"name": "INVALID",
"type": "output",
"description": "Output of the valid signal detector: logic high indicates a valid RS-232 level is present on the receiver inputs, low indicates shutdown."
},
{
"number": "12",
"name": "T2IN",
"type": "input",
"description": "TTL/CMOS transmitter 2 input, with logic thresholds of 0.8V (low) and 2.0V to 2.4V (high) depending on VCC."
},
{
"number": "13",
"name": "T1IN",
"type": "input",
"description": "TTL/CMOS transmitter 1 input, with logic thresholds of 0.8V (low) and 2.0V to 2.4V (high) depending on VCC."
},
{
"number": "14",
"name": "FORCEON",
"type": "input",
"description": "Drive high to override the automatic circuitry and keep the transmitters on (FORCEOFF must be high)."
},
{
"number": "15",
"name": "R1OUT",
"type": "output",
"description": "TTL/CMOS receiver 1 output (inverting, three-state controlled by EN)."
},
{
"number": "16",
"name": "R1IN",
"type": "input",
"description": "RS-232 receiver 1 input, tolerant of ±25V per the input voltage range and with approximately 5kΩ input resistance."
},
{
"number": "17",
"name": "T1OUT",
"type": "output",
"description": "RS-232 transmitter 1 output, forced to high impedance when FORCEOFF is low or AutoShutdown disables the transmitters."
},
{
"number": "18",
"name": "GND",
"type": "power_in",
"description": "Ground reference for the device."
},
{
"number": "19",
"name": "VCC",
"type": "power_in",
"description": "+3.0V to +5.5V supply voltage."
},
{
"number": "20",
"name": "FORCEOFF",
"type": "input",
"description": "Drive low to shut down the transmitters and on-board power supply, overriding all automatic circuitry 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 MPN MAX3223ECUP+ does not appear in the datasheet ordering table. The datasheet lists MAX3223EUP; The datasheet gives the TSSOP-20 pin mapping through the MAX3223 column of the pin table (page 5) an; Pin descriptions are paraphrased from the datasheet pin table. Electrical limits (for example, input",
"2/20 pins cited to the wrong page (name found elsewhere): ['15:R1OUT@p5', '16:R1IN@p5']"
],
"pages_sent": 16,
"cost_usd": 0.0918,
"at": "2026-10-30T17:19:18"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/max3221-max3243.pdf",
"pages": 16,
"sha256": "4b10ea08c7155060",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
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"extents_mm": [
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"footprint_binding": "identity",
"sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
"checked": "2026-10-30",
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},
{
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"role": "eda",
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}