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SN75C3232EDWR

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Texas Instruments RS232 ICs, SOIC-16-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SN75C3232EDWR

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn75c3232edwr.step / sn75c3232edwr.glb are 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, 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