component
TRS232D
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTRS232D
Texas Instruments · RS232 ICs · SOIC-16
TRS232D 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 terminal of external 1µF capacitor for charge pump; connect between C1+ and C1−. |
| 2 | VS+ | power_out | Positive supply output voltage from charge pump, typical +8.5V at VCC = 5V with absolute maximum range VCC − 0.3V to 15V. |
| 3 | C1− | passive | Negative terminal of external 1µF capacitor for charge pump; connect between C1+ and C1−. |
| 4 | C2+ | passive | Positive terminal of external 1µF capacitor for charge pump; connect between C2+ and C2−. |
| 5 | C2− | passive | Negative terminal of external 1µF capacitor for charge pump; connect between C2+ and C2−. |
| 6 | VS− | power_out | Negative supply output voltage from charge pump, typical −8.5V at VCC = 5V with absolute maximum range −15V to −0.3V. |
| 7 | T2OUT | output | Driver 2 output to RS-232, high-level output voltage 5V to 7V and low-level output voltage −7V to −5V with RL = 3kΩ to GND. |
| 8 | R2IN | input | Receiver 2 input from RS-232, accepts input voltages ±30V with positive-going threshold voltage 1.7V to 2.4V typical. |
| 9 | R2OUT | output | Receiver 2 output to TTL/CMOS, high-level output voltage ≥3.5V at IOH = −1mA, low-level output voltage ≤0.4V at IOL = 3.2mA. |
| 10 | T2IN | input | Driver 2 input from TTL/CMOS, input voltage range −0.3V to VCC + 0.3V with high-level threshold VIH = 2V and low-level threshold VIL = 0.8V. |
| 11 | T1IN | input | Driver 1 input from TTL/CMOS, input voltage range −0.3V to VCC + 0.3V with high-level threshold VIH = 2V and low-level threshold VIL = 0.8V. |
| 12 | R1OUT | output | Receiver 1 output to TTL/CMOS, high-level output voltage ≥3.5V at IOH = −1mA, low-level output voltage ≤0.4V at IOL = 3.2mA. |
| 13 | R1IN | input | Receiver 1 input from RS-232, accepts input voltages ±30V with positive-going threshold voltage 1.7V to 2.4V typical. |
| 14 | T1OUT | output | Driver 1 output to RS-232, high-level output voltage 5V to 7V and low-level output voltage −7V to −5V with RL = 3kΩ to GND. |
| 15 | GND | power_in | Ground, negative return path for VCC supply and all internal circuitry. |
| 16 | VCC | power_in | Positive supply input voltage, operating range 4.5V to 5.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
TRS232D - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
trs232d-etched.step/trs232d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);trs232d.step/trs232d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (18 pp, sha256
b1c5ab0d7a725bf7, retrieved 2026-10-03, tier: lcsc) - 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).