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Contents

README

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TRSF3232IDWR

Texas Instruments · RS232 ICs · SOIC-16-300mil

TRSF3232IDWR 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 terminal of charge-pump capacitor C1, which is 0.1 µF at VCC = 3.3 V or 0.047 µF at VCC = 5 V per the test-condition note.
2 V+ power_out Positive-output supply rail for the RS-232 drivers, with an absolute range of −0.3 V to 7 V and V+ − V− limited to 13 V.
3 C1− passive Negative terminal of charge-pump capacitor C1, connected between pins 1 and 3.
4 C2+ passive Positive terminal of charge-pump capacitor C2, which is 0.33 µF at VCC = 5 V per the test-condition note.
5 C2− passive Negative terminal of charge-pump capacitor C2, connected between pins 4 and 5.
6 V− power_out Negative-output supply rail for the RS-232 drivers, with an absolute rating of −7 V.
7 DOUT2 output RS-232 driver 2 output, with an output voltage range of ±13.2 V and a typical short-circuit current of ±35 mA.
8 RIN2 input RS-232 receiver 2 input, rated for ±25 V with an input resistance of 3 kΩ to 7 kΩ.
9 ROUT2 output Receiver 2 logic output, with VOH of VCC − 0.1 V typical and VOL of 0.4 V maximum at 1.6 mA.
10 DIN2 input Driver 2 logic input, with VIL maximum of 0.8 V, VIH minimum of 2 V at 3.3 V or 2.4 V at 5 V, and a 0 V to 5.5 V input range.
11 DIN1 input Driver 1 logic input, with VIL maximum of 0.8 V, VIH minimum of 2 V at 3.3 V or 2.4 V at 5 V, and a 0 V to 5.5 V input range.
12 ROUT1 output Receiver 1 logic output, with VOH of VCC − 0.1 V typical and VOL of 0.4 V maximum at 1.6 mA.
13 RIN1 input RS-232 receiver 1 input, rated for ±25 V with an input resistance of 3 kΩ to 7 kΩ.
14 DOUT1 output RS-232 driver 1 output, with an output voltage range of ±13.2 V and a typical short-circuit current of ±35 mA.
15 GND power_in Network ground; all device voltages are specified with respect to this pin.
16 VCC power_in Supply pin, operating from 3 V to 5.5 V, with an absolute maximum of 6 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-16-300mil
Category Interface
Pins 16

CAD (KiCad official)

  • Symbol: TRSF3232IDWR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
  • 3D model files: trsf3232idwr-etched.step / trsf3232idwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); trsf3232idwr.step / trsf3232idwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (15 pp, sha256 0f307fab858e7185, retrieved 2026-10-11, 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