component
MAX3250EAI+T
Public Made by Adomby adom
Maxim Integrated RS232 ICs, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314
{
"slug": "max3250eai-t",
"version": "0.1.0",
"type": "component",
"description": "Maxim Integrated RS232 ICs, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"communication interface chip-uart-485-232",
"max3250eai+t",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"max3250eai-t.kicad_sym",
"max3250eai-t.kicad_mod",
"max3250eai-t.glb",
"max3250eai-t.step",
"max3250eai-t.lbr",
"docs/hero.png",
"docs/max3250eai-t-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"max3250eai-t-hero.glb",
"max3250eai-t-hero.overlay.json",
"max3250eai-t-etched.glb"
],
"component": {
"mpn": "MAX3250EAI+T",
"manufacturer": "Maxim Integrated",
"package": "SSOP-28-208mil",
"pin_count": 28,
"category": "Communication Interface Chip/UART/485/232",
"subcategory": "RS232 ICs",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3250.pdf",
"parts": {
"symbol": "max3250eai-t.kicad_sym",
"footprint": "max3250eai-t.kicad_mod",
"model_3d": "max3250eai-t-hero.glb",
"model_3d_plain": "max3250eai-t-etched.glb",
"model_3d_step": "max3250eai-t-etched.step",
"model_3d_step_plain": "max3250eai-t.step",
"lbr": "max3250eai-t.lbr"
},
"distributor_links": {
"lcsc": "C2671045",
"digikey": "MAX3250EAI+TTR-ND",
"mouser": "700-MAX3250EAIT"
},
"distributor_check": {
"checked_at": "2026-10-30T22:46:38Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "MAX3250EAI+TTR-ND",
"status": "found"
},
"mouser": {
"pn": "700-MAX3250EAIT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "C1-",
"type": "passive",
"description": "Negative terminal of the power isolation capacitor; connect a 100V capacitor from C1- to C1+."
},
{
"number": "2",
"name": "R1OUT",
"type": "output",
"description": "TTL/CMOS receiver output; the receiver output is high impedance in shutdown."
},
{
"number": "3",
"name": "R2OUT",
"type": "output",
"description": "TTL/CMOS receiver output; the receiver output is high impedance in shutdown."
},
{
"number": "4",
"name": "T1IN",
"type": "input",
"description": "TTL/CMOS transmitter input; the transmitter input has no pullup, so unused inputs should be connected to VCC or GND."
},
{
"number": "5",
"name": "T2IN",
"type": "input",
"description": "TTL/CMOS transmitter input; the transmitter input has no pullup, so unused inputs should be connected to VCC or GND."
},
{
"number": "6",
"name": "N.C.",
"type": "unconnected",
"description": "No connection; not internally connected."
},
{
"number": "7",
"name": "N.C.",
"type": "unconnected",
"description": "No connection; leave unconnected or connect to ISOCOM."
},
{
"number": "8",
"name": "C1+",
"type": "passive",
"description": "Positive terminal of the power isolation capacitor; connect a 100V capacitor from C1+ to C1-."
},
{
"number": "9",
"name": "C3+",
"type": "passive",
"description": "Positive terminal of the voltage-doubler charge-pump capacitor; connect a 0.1µF capacitor from C3+ to C3-."
},
{
"number": "10",
"name": "V+",
"type": "power_out",
"description": "+5.5V generated by the charge pump, referenced to ISOCOM; bypass V+ to ISOCOM with a 0.47µF capacitor."
},
{
"number": "11",
"name": "C3-",
"type": "passive",
"description": "Negative terminal of the voltage-doubler charge-pump capacitor; connect a 0.1µF capacitor from C3- to C3+."
},
{
"number": "12",
"name": "C4+",
"type": "passive",
"description": "Positive terminal of the inverting charge-pump capacitor; connect a 0.47µF capacitor from C4+ to C4-."
},
{
"number": "13",
"name": "C4-",
"type": "passive",
"description": "Negative terminal of the inverting charge-pump capacitor; connect a 0.47µF capacitor from C4- to C4+."
},
{
"number": "14",
"name": "V-",
"type": "power_out",
"description": "-5.5V generated by the charge pump, referenced to ISOCOM; bypass V- to ISOCOM with a 0.47µF capacitor."
},
{
"number": "15",
"name": "ISOCOM",
"type": "power_in",
"description": "Isolated ground; the difference between GND and ISOCOM can be up to 50V, with an absolute maximum of ±80V on ISOCOM."
},
{
"number": "16",
"name": "T2OUT",
"type": "output",
"description": "RS-232 transmitter output; can be driven up to ±12V relative to ISOCOM when powered off or shut down."
},
{
"number": "17",
"name": "T1OUT",
"type": "output",
"description": "RS-232 transmitter output; can be driven up to ±12V relative to ISOCOM when powered off or shut down."
},
{
"number": "18",
"name": "R2IN",
"type": "input",
"description": "RS-232 receiver input with a ±25V input-voltage range relative to ISOCOM."
},
{
"number": "19",
"name": "R1IN",
"type": "input",
"description": "RS-232 receiver input with a ±25V input-voltage range relative to ISOCOM."
},
{
"number": "20",
"name": "ISOVCC",
"type": "power_out",
"description": "Internally generated isolated power-supply voltage referenced to ISOCOM; bypass ISOVCC to ISOCOM with a 2.2µF capacitor."
},
{
"number": "21",
"name": "C2+",
"type": "passive",
"description": "Positive terminal of the power isolation capacitor; connect a 100V capacitor from C2+ to C2-."
},
{
"number": "22",
"name": "N.C.",
"type": "unconnected",
"description": "No connection; not internally connected."
},
{
"number": "23",
"name": "N.C.",
"type": "unconnected",
"description": "No connection; not internally connected."
},
{
"number": "24",
"name": "SHDN",
"type": "input",
"description": "Shutdown control; drive low to enter low-power shutdown mode, and drive high or connect to VCC for normal operation."
},
{
"number": "25",
"name": "FAULT",
"type": "output",
"description": "Overvoltage indicator; active low, open drain, signals excessive isolated-side voltage."
},
{
"number": "26",
"name": "GND",
"type": "power_in",
"description": "Ground, the logic-side reference for the device."
},
{
"number": "27",
"name": "C2-",
"type": "passive",
"description": "Negative terminal of the power isolation capacitor; connect a 100V capacitor from C2- to C2+."
},
{
"number": "28",
"name": "VCC",
"type": "power_in",
"description": "3.0V to 5.5V supply voltage; bypass VCC to GND with a 1µF capacitor."
}
],
"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 ordering table lists MAX3250EAI+ (28 SSOP, -40°C to +85°C). The +T tape-and-reel suffi"
],
"pages_sent": 10,
"cost_usd": 0.0295,
"at": "2026-10-30T22:46:26"
},
"datasheet": {
"url": "https://www.analog.com/media/en/technical-documentation/data-sheets/MAX3250.pdf",
"pages": 10,
"sha256": "08a2b9f8f2d555c0",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 28,
"described": 28,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "max3250eai-t.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.8,
10.2,
2.1
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "7aa76979ae41da44bded1ed74115012868f2f3f5a757faf32bb9df4f92c1e313",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "max3250eai-t-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
7.8,
10.2,
2.1
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "e64d92ec87c8406a1f4e7fac1cfd30594ce60331a3a1a4aabd77352c45c2bf93",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}