component
SN75C3232EDWR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSN75C3232EDWR
Texas Instruments · RS232 ICs · SOIC-16-300mil
SN75C3232EDWR from Texas Instruments, in a SOIC-16-300mil. 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 | C1+ | passive | Positive lead of the charge-pump C1 capacitor (0.1 µF for VCC = 3.3 V ± 0.3 V). |
| 2 | V+ | power_out | Positive charge pump output for storage capacitor only; absolute maximum -0.3 V to 7 V. |
| 3 | C1- | passive | Negative lead of the charge-pump C1 capacitor. |
| 4 | C2+ | passive | Positive lead of the charge-pump C2 capacitor. |
| 5 | C2- | passive | Negative lead of the charge-pump C2 capacitor. |
| 6 | V- | power_out | Negative charge pump output for storage capacitor only; absolute maximum magnitude 7 V below ground. |
| 7 | DOUT2 | output | RS232 line data output (to remote RS232 system) with ±15 kV HBM and IEC 61000-4-2 ESD protection; output voltage range ±13.2 V absolute maximum. |
| 8 | RIN2 | input | RS232 line data input (from remote RS232 system) with 3 kΩ to 7 kΩ input resistance, ±25 V input range, and ±15 kV ESD protection. |
| 9 | ROUT2 | output | Logic data output (to UART); goes high when RIN2 is open. |
| 10 | DIN2 | input | Logic data input (from UART); must be driven to a valid high or low level, accepts 0 V to 5.5 V. |
| 11 | DIN1 | input | Logic data input (from UART); must be driven to a valid high or low level, accepts 0 V to 5.5 V. |
| 12 | ROUT1 | output | Logic data output (to UART); goes high when RIN1 is open. |
| 13 | RIN1 | input | RS232 line data input (from remote RS232 system) with 3 kΩ to 7 kΩ input resistance, ±25 V input range, and ±15 kV ESD protection. |
| 14 | DOUT1 | output | RS232 line data output (to remote RS232 system) with ±15 kV HBM and IEC 61000-4-2 ESD protection; output voltage range ±13.2 V absolute maximum. |
| 15 | GND | power_in | Ground. |
| 16 | VCC | power_in | Supply voltage, connect to external 3-V to 5.5-V power supply, with 0.1 µF bypass capacitor to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN75C3232EDWR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
sn75c3232edwr-etched.step/sn75c3232edwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn75c3232edwr.step/sn75c3232edwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (32 pp, sha256
9a8ff990a7fbdf5c, retrieved 2026-10-06, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).