component
ST232ECDR
Public Made by Adomby adom
STMicroelectronics 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
markdownST232ECDR
STMicroelectronics · RS232 ICs · SOIC-16
ST232ECDR from STMicroelectronics, 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 for the first charge pump capacitor |
| 2 | V+ | power_out | Doubled voltage terminal from internal charge pump |
| 3 | C1- | passive | Negative terminal for the first charge pump capacitor |
| 4 | C2+ | passive | Positive terminal for the second charge pump capacitor |
| 5 | C2- | passive | Negative terminal for the second charge pump capacitor |
| 6 | V- | power_out | Inverted voltage terminal from internal charge pump |
| 7 | T2OUT | output | Second transmitter output voltage swing ±5 to ±9 V into 3 kΩ load |
| 8 | R2IN | input | Second receiver input voltage operating range ±30 V |
| 9 | R2OUT | output | Second receiver output voltage TTL/CMOS compatible |
| 10 | T2IN | input | Second transmitter input voltage with logic thresholds 0.8 V and 2 V |
| 11 | T1IN | input | First transmitter input voltage with logic thresholds 0.8 V and 2 V |
| 12 | R1OUT | output | First receiver output voltage TTL/CMOS compatible |
| 13 | R1IN | input | First receiver input voltage operating range ±30 V |
| 14 | T1OUT | output | First transmitter output voltage swing ±5 to ±9 V into 3 kΩ load |
| 15 | GND | power_in | Ground connection |
| 16 | VCC | power_in | Supply voltage 5 V nominal |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ST232ECDR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
st232ecdr-etched.step/st232ecdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st232ecdr.step/st232ecdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (18 pp, sha256
fe41e6c8c1ca7890, retrieved 2026-09-26, tier: lcsc) - 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).