component
MAX3237ECDBR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+64@@ -0,0 +1,64 @@+# MAX3237ECDBR++**Texas Instruments** · RS232 ICs · SSOP-28-208mil++MAX3237ECDBR from Texas Instruments, in a SSOP-28-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | C2+ | passive | Positive terminal for external 0.1µF charge pump capacitor. |+| 2 | GND | power_in | Ground reference for all supplies and logic signals. |+| 3 | C2− | passive | Negative terminal for external 0.1µF charge pump capacitor. |+| 4 | V− | power_out | Negative supply output from charge pump, range 0 to -7V with respect to GND. |+| 5 | DOUT1 | tri_state | RS-232 driver output 1, ±5.4V maximum, high-impedance when SHDN=GND. |+| 6 | DOUT2 | tri_state | RS-232 driver output 2, ±5.4V maximum, high-impedance when SHDN=GND. |+| 7 | DOUT3 | tri_state | RS-232 driver output 3, ±5.4V maximum, high-impedance when SHDN=GND. |+| 8 | RIN1 | input | RS-232 receiver input 1, accepts -25V to +25V with 2V threshold at VCC=5V. |+| 9 | RIN2 | input | RS-232 receiver input 2, accepts -25V to +25V with 2V threshold at VCC=5V. |+| 10 | DOUT4 | tri_state | RS-232 driver output 4, ±5.4V maximum, high-impedance when SHDN=GND. |+| 11 | RIN3 | input | RS-232 receiver input 3, accepts -25V to +25V with 2V threshold at VCC=5V. |+| 12 | DOUT5 | tri_state | RS-232 driver output 5, ±5.4V maximum, high-impedance when SHDN=GND. |+| 13 | EN | input | Receiver output enable control input; high disables ROUT outputs except ROUT1B. |+| 14 | SHDN | input | Shutdown control input; low disables drivers and charge pump reducing supply current to less than 1mA. |+| 15 | MBAUD | input | Baud rate selection input; GND selects 250kbaud, VCC selects 1Mbaud operation. |+| 16 | ROUT1B | output | Receiver output 1B, TTL/CMOS logic level, always active regardless of EN and SHDN state. |+| 17 | DIN5 | input | TTL/CMOS driver input 5, logic levels VIH=2V minimum, VIL=0.8V maximum. |+| 18 | ROUT3 | tri_state | Receiver output 3, TTL/CMOS logic level VOL=0.4V, disabled when EN=VCC. |+| 19 | DIN4 | input | TTL/CMOS driver input 4, logic levels VIH=2V minimum, VIL=0.8V maximum. |+| 20 | ROUT2 | tri_state | Receiver output 2, TTL/CMOS logic level VOL=0.4V, disabled when EN=VCC. |+| 21 | ROUT1 | tri_state | Receiver output 1, TTL/CMOS logic level VOL=0.4V, disabled when EN=VCC. |+| 22 | DIN3 | input | TTL/CMOS driver input 3, logic levels VIH=2V minimum, VIL=0.8V maximum. |+| 23 | DIN2 | input | TTL/CMOS driver input 2, logic levels VIH=2V minimum, VIL=0.8V maximum. |+| 24 | DIN1 | input | TTL/CMOS driver input 1, logic levels VIH=2V minimum, VIL=0.8V maximum. |+| 25 | C1− | passive | Negative terminal for external 0.1µF charge pump capacitor. |+| 26 | VCC | power_in | Positive power supply input voltage, 3V to 5.5V recommended operating range. |+| 27 | V+ | power_out | Positive supply output from internal charge pump, 3V to 7V typical with respect to GND. |+| 28 | C1+ | passive | Positive terminal for external 0.1µF charge pump capacitor. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-28-208mil |+| Category | Interface |+| Pins | 28 |++## CAD (KiCad official)++- Symbol: `MAX3237ECDBR`+- Footprint: `Package_SO:SSOP-28_5.3x10.2mm_P0.65mm`+- 3D model: SSOP-28-208mil (KiCad packages3D, STEP)+- 3D model files: `max3237ecdbr-etched.step` / `max3237ecdbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max3237ecdbr.step` / `max3237ecdbr.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/max3237e) (20 pp, sha256 `3c7a0153f3fbbd48`, retrieved 2026-10-03, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/max3237ecdbr-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "max3237ecdbr",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "max3237ecdbr.kicad_sym",+ "max3237ecdbr.kicad_mod",+ "max3237ecdbr.glb",+ "max3237ecdbr.step",+ "max3237ecdbr.lbr",+ "docs/hero.png",+ "docs/max3237ecdbr-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "max3237ecdbr-hero.glb",+ "max3237ecdbr-hero.overlay.json"+ ],+ "component": {+ "mpn": "MAX3237ECDBR",+ "manufacturer": "Texas Instruments",+ "package": "SSOP-28-208mil",+ "pin_count": 28,+ "category": "Interface",+ "subcategory": "RS232 ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/max3237e",+ "parts": {+ "symbol": "max3237ecdbr.kicad_sym",+ "footprint": "max3237ecdbr.kicad_mod",+ "model_3d": "max3237ecdbr-hero.glb",+ "model_3d_plain": "max3237ecdbr.glb",+ "model_3d_step": "max3237ecdbr-etched.step",+ "model_3d_step_plain": "max3237ecdbr.step",+ "lbr": "max3237ecdbr.lbr"+ },+ "distributor_links": {+ "lcsc": 2864027,+ "digikey": "MAX3237ECDBRTR-ND",+ "mouser": "595-MAX3237ECDBR"+ },+ "distributor_check": {+ "checked_at": "2026-10-03T06:53:58Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "MAX3237ECDBRTR-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-MAX3237ECDBR",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "C2+",+ "type": "passive",+ "description": "Positive terminal for external 0.1µF charge pump capacitor."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference for all supplies and logic signals."+ },+ {+ "number": "3",+ "name": "C2−",+ "type": "passive",+ "description": "Negative terminal for external 0.1µF charge pump capacitor."+ },+ {+ "number": "4",+ "name": "V−",+ "type": "power_out",+ "description": "Negative supply output from charge pump, range 0 to -7V with respect to GND."+ },+ {+ "number": "5",+ "name": "DOUT1",+ "type": "tri_state",+ "description": "RS-232 driver output 1, ±5.4V maximum, high-impedance when SHDN=GND."+ },+ {+ "number": "6",+ "name": "DOUT2",+ "type": "tri_state",+ "description": "RS-232 driver output 2, ±5.4V maximum, high-impedance when SHDN=GND."+ },+ {+ "number": "7",+ "name": "DOUT3",+ "type": "tri_state",+ "description": "RS-232 driver output 3, ±5.4V maximum, high-impedance when SHDN=GND."+ },+ {+ "number": "8",+ "name": "RIN1",+ "type": "input",+ "description": "RS-232 receiver input 1, accepts -25V to +25V with 2V threshold at VCC=5V."+ },+ {+ "number": "9",+ "name": "RIN2",+ "type": "input",+ "description": "RS-232 receiver input 2, accepts -25V to +25V with 2V threshold at VCC=5V."+ },+ {+ "number": "10",+ "name": "DOUT4",+ "type": "tri_state",+ "description": "RS-232 driver output 4, ±5.4V maximum, high-impedance when SHDN=GND."+ },+ {+ "number": "11",+ "name": "RIN3",+ "type": "input",+ "description": "RS-232 receiver input 3, accepts -25V to +25V with 2V threshold at VCC=5V."+ },+ {+ "number": "12",+ "name": "DOUT5",+ "type": "tri_state",+ "description": "RS-232 driver output 5, ±5.4V maximum, high-impedance when SHDN=GND."+ },+ {+ "number": "13",+ "name": "EN",+ "type": "input",+ "description": "Receiver output enable control input; high disables ROUT outputs except ROUT1B."+ },+ {+ "number": "14",+ "name": "SHDN",+ "type": "input",+ "description": "Shutdown control input; low disables drivers and charge pump reducing supply current to less than 1mA."+ },+ {+ "number": "15",+ "name": "MBAUD",+ "type": "input",+ "description": "Baud rate selection input; GND selects 250kbaud, VCC selects 1Mbaud operation."+ },+ {+ "number": "16",+ "name": "ROUT1B",+ "type": "output",+ "description": "Receiver output 1B, TTL/CMOS logic level, always active regardless of EN and SHDN state."+ },+ {+ "number": "17",+ "name": "DIN5",+ "type": "input",+ "description": "TTL/CMOS driver input 5, logic levels VIH=2V minimum, VIL=0.8V maximum."+ },+ {+ "number": "18",+ "name": "ROUT3",+ "type": "tri_state",+ "description": "Receiver output 3, TTL/CMOS logic level VOL=0.4V, disabled when EN=VCC."+ },+ {+ "number": "19",+ "name": "DIN4",+ "type": "input",+ "description": "TTL/CMOS driver input 4, logic levels VIH=2V minimum, VIL=0.8V maximum."+ },+ {+ "number": "20",+ "name": "ROUT2",+ "type": "tri_state",+ "description": "Receiver output 2, TTL/CMOS logic level VOL=0.4V, disabled when EN=VCC."+ },+ {+ "number": "21",+ "name": "ROUT1",+ "type": "tri_state",+ "description": "Receiver output 1, TTL/CMOS logic level VOL=0.4V, disabled when EN=VCC."+ },+ {+ "number": "22",+ "name": "DIN3",+ "type": "input",+ "description": "TTL/CMOS driver input 3, logic levels VIH=2V minimum, VIL=0.8V maximum."+ },+ {+ "number": "23",+ "name": "DIN2",+ "type": "input",+ "description": "TTL/CMOS driver input 2, logic levels VIH=2V minimum, VIL=0.8V maximum."+ },+ {+ "number": "24",+ "name": "DIN1",+ "type": "input",+ "description": "TTL/CMOS driver input 1, logic levels VIH=2V minimum, VIL=0.8V maximum."+ },+ {+ "number": "25",+ "name": "C1−",+ "type": "passive",+ "description": "Negative terminal for external 0.1µF charge pump capacitor."+ },+ {+ "number": "26",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive power supply input voltage, 3V to 5.5V recommended operating range."+ },+ {+ "number": "27",+ "name": "V+",+ "type": "power_out",+ "description": "Positive supply output from internal charge pump, 3V to 7V typical with respect to GND."+ },+ {+ "number": "28",+ "name": "C1+",+ "type": "passive",+ "description": "Positive terminal for external 0.1µF charge pump capacitor."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [],+ "pages_sent": 20,+ "cost_usd": 0.1742,+ "at": "2026-10-03T06:53:31"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/max3237e",+ "pages": 20,+ "sha256": "3c7a0153f3fbbd48",+ "source_tier": "lcsc"+ },+ "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"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}