component
MAX3238EIDB
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 @@+# MAX3238EIDB++**Texas Instruments** · RS232 ICs · SSOP-28-208mil++MAX3238EIDB 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 of charge-pump capacitor C2 (external capacitor between C2+ and C2−). |+| 2 | GND | power_in | Ground; all device voltages are specified with respect to network GND. |+| 3 | C2− | passive | Negative terminal of charge-pump capacitor C2 (external capacitor between C2+ and C2−). |+| 4 | V− | power_out | Negative charge-pump output supply, with an external capacitor C4; absolute maximum range is 0.3 to −7 V. |+| 5 | DOUT1 | output | RS-232 driver 1 output with ±15-kV HBM ESD protection; high impedance when powered off. |+| 6 | DOUT2 | output | RS-232 driver 2 output with ±15-kV HBM ESD protection; high impedance when powered off. |+| 7 | DOUT3 | output | RS-232 driver 3 output with ±15-kV HBM ESD protection; high impedance when powered off. |+| 8 | RIN1 | input | RS-232 receiver 1 input with ±15-kV HBM ESD protection; 3 kΩ to 7 kΩ input resistance, ±25 V input range. |+| 9 | RIN2 | input | RS-232 receiver 2 input with ±15-kV HBM ESD protection; 3 kΩ to 7 kΩ input resistance, ±25 V input range. |+| 10 | DOUT4 | output | RS-232 driver 4 output with ±15-kV HBM ESD protection; high impedance when powered off. |+| 11 | RIN3 | input | RS-232 receiver 3 input with ±15-kV HBM ESD protection; 3 kΩ to 7 kΩ input resistance, ±25 V input range. |+| 12 | DOUT5 | output | RS-232 driver 5 output with ±15-kV HBM ESD protection; high impedance when powered off. |+| 13 | FORCEON | input | Logic input; high with FORCEOFF high disables auto-powerdown plus, low with FORCEOFF high enables it (VIH min 2 V at 3.3 V, 2.4 V at 5 V; VIL max 0.8 V). |+| 14 | FORCEOFF | input | Logic input; low powers off the drivers and charge pump (ROUT1B stays active), high allows normal operation (VIL max 0.8 V). |+| 15 | INVALID | output | Output that is high if any receiver input is above 2.7 V or below −2.7 V, or has been within ±0.3 V for less than 30 µs; low when all receiver inputs stay between −0.3 V and 0.3 V for more than 30 µs. |+| 16 | ROUT1B | output | Always-active noninverting receiver 1 output that remains active while the device is powered down (for ring-indicator use). |+| 17 | DIN5 | input | Driver 5 logic input; accepts 5-V logic with a 3.3-V supply. |+| 18 | ROUT3 | output | Receiver 3 logic output; high impedance when FORCEOFF is low. |+| 19 | DIN4 | input | Driver 4 logic input; accepts 5-V logic with a 3.3-V supply. |+| 20 | ROUT2 | output | Receiver 2 logic output; high impedance when FORCEOFF is low. |+| 21 | ROUT1 | output | Receiver 1 logic output; high impedance when FORCEOFF is low. |+| 22 | DIN3 | input | Driver 3 logic input; accepts 5-V logic with a 3.3-V supply. |+| 23 | DIN2 | input | Driver 2 logic input; accepts 5-V logic with a 3.3-V supply. |+| 24 | DIN1 | input | Driver 1 logic input; accepts 5-V logic with a 3.3-V supply. |+| 25 | C1− | passive | Negative terminal of charge-pump capacitor C1 (external capacitor between C1+ and C1−). |+| 26 | VCC | power_in | Supply voltage input, 3 V to 5.5 V (absolute maximum 6 V), with a 0.1 µF bypass capacitor. |+| 27 | V+ | power_out | Positive charge-pump output supply, with an external capacitor C3; absolute maximum range is −0.3 to 7 V. |+| 28 | C1+ | passive | Positive terminal of charge-pump capacitor C1 (external capacitor between C1+ and C1−). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SSOP-28-208mil |+| Category | Interface |+| Pins | 28 |++## CAD (KiCad official)++- Symbol: `MAX3238EIDB`+- Footprint: `Package_SO:SSOP-28_5.3x10.2mm_P0.65mm`+- 3D model: SSOP-28-208mil (KiCad packages3D, STEP)+- 3D model files: `max3238eidb-etched.step` / `max3238eidb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max3238eidb.step` / `max3238eidb.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/max3238e) (23 pp, sha256 `1d519ae7a9e53f86`, retrieved 2026-10-08, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/max3238eidb-datasheet.pdf)
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Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "interface",+ "max3238eidb",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "max3238eidb.kicad_sym",+ "max3238eidb.kicad_mod",+ "max3238eidb.glb",+ "max3238eidb.step",+ "max3238eidb.lbr",+ "docs/hero.png",+ "docs/max3238eidb-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "max3238eidb-hero.glb",+ "max3238eidb-hero.overlay.json"+ ],+ "component": {+ "mpn": "MAX3238EIDB",+ "manufacturer": "Texas Instruments",+ "package": "SSOP-28-208mil",+ "pin_count": 28,+ "category": "Interface",+ "subcategory": "RS232 ICs",+ "datasheet": "https://www.ti.com/cn/lit/gpn/max3238e",+ "parts": {+ "symbol": "max3238eidb.kicad_sym",+ "footprint": "max3238eidb.kicad_mod",+ "model_3d": "max3238eidb-hero.glb",+ "model_3d_plain": "max3238eidb.glb",+ "model_3d_step": "max3238eidb-etched.step",+ "model_3d_step_plain": "max3238eidb.step",+ "lbr": "max3238eidb.lbr"+ },+ "distributor_links": {+ "lcsc": "C206215",+ "digikey": "296-33395-5-ND",+ "mouser": "595-MAX3238EIDB"+ },+ "distributor_check": {+ "checked_at": "2026-10-08T20:27:06Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "296-33395-5-ND",+ "status": "found",+ "lifecycle": "Obsolete"+ },+ "mouser": {+ "pn": "595-MAX3238EIDB",+ "status": "found",+ "lifecycle": "Obsolete"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "C2+",+ "type": "passive",+ "description": "Positive terminal of charge-pump capacitor C2 (external capacitor between C2+ and C2−)."+ },+ {+ "number": "2",+ "name": "GND",+ "type": "power_in",+ "description": "Ground; all device voltages are specified with respect to network GND."+ },+ {+ "number": "3",+ "name": "C2−",+ "type": "passive",+ "description": "Negative terminal of charge-pump capacitor C2 (external capacitor between C2+ and C2−)."+ },+ {+ "number": "4",+ "name": "V−",+ "type": "power_out",+ "description": "Negative charge-pump output supply, with an external capacitor C4; absolute maximum range is 0.3 to −7 V."+ },+ {+ "number": "5",+ "name": "DOUT1",+ "type": "output",+ "description": "RS-232 driver 1 output with ±15-kV HBM ESD protection; high impedance when powered off."+ },+ {+ "number": "6",+ "name": "DOUT2",+ "type": "output",+ "description": "RS-232 driver 2 output with ±15-kV HBM ESD protection; high impedance when powered off."+ },+ {+ "number": "7",+ "name": "DOUT3",+ "type": "output",+ "description": "RS-232 driver 3 output with ±15-kV HBM ESD protection; high impedance when powered off."+ },+ {+ "number": "8",+ "name": "RIN1",+ "type": "input",+ "description": "RS-232 receiver 1 input with ±15-kV HBM ESD protection; 3 kΩ to 7 kΩ input resistance, ±25 V input range."+ },+ {+ "number": "9",+ "name": "RIN2",+ "type": "input",+ "description": "RS-232 receiver 2 input with ±15-kV HBM ESD protection; 3 kΩ to 7 kΩ input resistance, ±25 V input range."+ },+ {+ "number": "10",+ "name": "DOUT4",+ "type": "output",+ "description": "RS-232 driver 4 output with ±15-kV HBM ESD protection; high impedance when powered off."+ },+ {+ "number": "11",+ "name": "RIN3",+ "type": "input",+ "description": "RS-232 receiver 3 input with ±15-kV HBM ESD protection; 3 kΩ to 7 kΩ input resistance, ±25 V input range."+ },+ {+ "number": "12",+ "name": "DOUT5",+ "type": "output",+ "description": "RS-232 driver 5 output with ±15-kV HBM ESD protection; high impedance when powered off."+ },+ {+ "number": "13",+ "name": "FORCEON",+ "type": "input",+ "description": "Logic input; high with FORCEOFF high disables auto-powerdown plus, low with FORCEOFF high enables it (VIH min 2 V at 3.3 V, 2.4 V at 5 V; VIL max 0.8 V)."+ },+ {+ "number": "14",+ "name": "FORCEOFF",+ "type": "input",+ "description": "Logic input; low powers off the drivers and charge pump (ROUT1B stays active), high allows normal operation (VIL max 0.8 V)."+ },+ {+ "number": "15",+ "name": "INVALID",+ "type": "output",+ "description": "Output that is high if any receiver input is above 2.7 V or below −2.7 V, or has been within ±0.3 V for less than 30 µs; low when all receiver inputs stay between −0.3 V and 0.3 V for more than 30 µs."+ },+ {+ "number": "16",+ "name": "ROUT1B",+ "type": "output",+ "description": "Always-active noninverting receiver 1 output that remains active while the device is powered down (for ring-indicator use)."+ },+ {+ "number": "17",+ "name": "DIN5",+ "type": "input",+ "description": "Driver 5 logic input; accepts 5-V logic with a 3.3-V supply."+ },+ {+ "number": "18",+ "name": "ROUT3",+ "type": "output",+ "description": "Receiver 3 logic output; high impedance when FORCEOFF is low."+ },+ {+ "number": "19",+ "name": "DIN4",+ "type": "input",+ "description": "Driver 4 logic input; accepts 5-V logic with a 3.3-V supply."+ },+ {+ "number": "20",+ "name": "ROUT2",+ "type": "output",+ "description": "Receiver 2 logic output; high impedance when FORCEOFF is low."+ },+ {+ "number": "21",+ "name": "ROUT1",+ "type": "output",+ "description": "Receiver 1 logic output; high impedance when FORCEOFF is low."+ },+ {+ "number": "22",+ "name": "DIN3",+ "type": "input",+ "description": "Driver 3 logic input; accepts 5-V logic with a 3.3-V supply."+ },+ {+ "number": "23",+ "name": "DIN2",+ "type": "input",+ "description": "Driver 2 logic input; accepts 5-V logic with a 3.3-V supply."+ },+ {+ "number": "24",+ "name": "DIN1",+ "type": "input",+ "description": "Driver 1 logic input; accepts 5-V logic with a 3.3-V supply."+ },+ {+ "number": "25",+ "name": "C1−",+ "type": "passive",+ "description": "Negative terminal of charge-pump capacitor C1 (external capacitor between C1+ and C1−)."+ },+ {+ "number": "26",+ "name": "VCC",+ "type": "power_in",+ "description": "Supply voltage input, 3 V to 5.5 V (absolute maximum 6 V), with a 0.1 µF bypass capacitor."+ },+ {+ "number": "27",+ "name": "V+",+ "type": "power_out",+ "description": "Positive charge-pump output supply, with an external capacitor C3; absolute maximum range is −0.3 to 7 V."+ },+ {+ "number": "28",+ "name": "C1+",+ "type": "passive",+ "description": "Positive terminal of charge-pump capacitor C1 (external capacitor between C1+ and C1−)."+ }+ ],+ "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 DB-package pin-number mapping was inferred from the page 1 top-view name order (pins 1–14 down t; Pin type for the charge-pump terminals (C1+, C1−, C2+, C2−) is set to passive because the datasheet ; Page 1 lists a second, different pin-name set for the RHB QFN package (32-pin, with NC pins). This o"+ ],+ "pages_sent": 23,+ "cost_usd": 0.1145,+ "at": "2026-10-08T20:26:25"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/max3238e",+ "pages": 23,+ "sha256": "1d519ae7a9e53f86",+ "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"+ },+ "models_3d": [+ {+ "file": "max3238eidb.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,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "7aa76979ae41da44bded1ed74115012868f2f3f5a757faf32bb9df4f92c1e313",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ },+ {+ "file": "max3238eidb-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,+ "centre_offset_mm": 0,+ "footprint_binding": "identity",+ "sha256": "0cea7d8b00fa503ba33cef6bc6c8c521bd1e09d02fc1a2f30f1e88e71c356aaf",+ "checked": "2026-10-08",+ "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"+ }+ ]+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}