component
TRSF3232ECDR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownTRSF3232ECDR
Texas Instruments · RS232 ICs · SOIC-16
TRSF3232ECDR from Texas Instruments, in a SOIC-16. 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 charge-pump flying capacitor C1; connect a 0.1 µF (3.3 V) or 0.047 µF (5 V) capacitor between C1+ and C1−. |
| 2 | V+ | power_out | Positive charge-pump output; connect storage capacitor (0.1 µF at 3.3 V, 0.33 µF at 5 V) to GND; maximum voltage +7 V with respect to GND. |
| 3 | C1- | passive | Negative lead of charge-pump flying capacitor C1; connect to C1+ via the external C1 capacitor. |
| 4 | C2+ | passive | Positive lead of charge-pump flying capacitor C2; connect a 0.1 µF (3.3 V) or 0.33 µF (5 V) capacitor between C2+ and C2−. |
| 5 | C2- | passive | Negative lead of charge-pump flying capacitor C2; connect to C2+ via the external C2 capacitor. |
| 6 | V- | power_out | Negative charge-pump output; connect storage capacitor (0.1 µF at 3.3 V, 0.33 µF at 5 V) to GND; minimum voltage −7 V with respect to GND. |
| 7 | DOUT2 | output | RS-232 line driver output for channel 2 (to remote RS-232 system); output swings ≥+5 V / ≤−5 V into 3 kΩ, ±15 kV HBM ESD-protected, slew rate 14-150 V/µs. |
| 8 | RIN2 | input | RS-232 line receiver input for channel 2 (from remote RS-232 system); accepts ±25 V, 3-7 kΩ internal load, ±15 kV HBM ESD-protected. |
| 9 | ROUT2 | output | Logic-level receiver output for channel 2 (to UART); VOH ≥ VCC−0.6 V at −1 mA, VOL ≤ 0.4 V at 1.6 mA; open RIN2 forces high output. |
| 10 | DIN2 | input | Logic-level driver input for channel 2 (from UART); VIH ≥ 2 V (3.3 V supply) / 2.4 V (5 V supply), VIL ≤ 0.8 V, accepts up to 5.5 V. |
| 11 | DIN1 | input | Logic-level driver input for channel 1 (from UART); VIH ≥ 2 V (3.3 V supply) / 2.4 V (5 V supply), VIL ≤ 0.8 V, accepts up to 5.5 V. |
| 12 | ROUT1 | output | Logic-level receiver output for channel 1 (to UART); VOH ≥ VCC−0.6 V at −1 mA, VOL ≤ 0.4 V at 1.6 mA; open RIN1 forces high output. |
| 13 | RIN1 | input | RS-232 line receiver input for channel 1 (from remote RS-232 system); accepts ±25 V, 3-7 kΩ internal load, ±15 kV HBM ESD-protected. |
| 14 | DOUT1 | output | RS-232 line driver output for channel 1 (to remote RS-232 system); output swings ≥+5 V / ≤−5 V into 3 kΩ, ±15 kV HBM ESD-protected, slew rate 14-150 V/µs. |
| 15 | GND | power_in | Ground reference; all voltages (VCC, V+, V−) are referenced to this pin. |
| 16 | VCC | power_in | Supply voltage; connect to 3 V-5.5 V external supply; bypass with ≥0.1 µF capacitor to GND; quiescent current 300 µA typical, 1 mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
TRSF3232ECDR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
trsf3232ecdr-etched.step/trsf3232ecdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);trsf3232ecdr.step/trsf3232ecdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
8ddc69e39dc6d15f, retrieved 2026-09-27, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).