component
ST202ECDR
Public Made by Adomby adom
STMicroelectronics RS232 ICs, SOIC-16-300mil. 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
markdownST202ECDR
STMicroelectronics · RS232 ICs · SOIC-16-300mil
ST202ECDR from STMicroelectronics, 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 for first charge pump capacitor; connect 0.1 µF external capacitor for proper charge pump operation. |
| 2 | V+ | power_out | Doubled voltage terminal generating positive supply voltage from (VCC-0.3) to 14V for transmitter output biasing. |
| 3 | C1- | passive | Negative terminal for first charge pump capacitor; connect 0.1 µF external capacitor for proper charge pump operation. |
| 4 | C2+ | passive | Positive terminal for second charge pump capacitor; connect 0.1 µF external capacitor for proper charge pump operation. |
| 5 | C2- | passive | Negative terminal for second charge pump capacitor; connect 0.1 µF external capacitor for proper charge pump operation. |
| 6 | V- | power_out | Inverted voltage terminal generating negative supply voltage from -14 to 0.3V for transmitter output biasing. |
| 7 | T2OUT | output | Second transmitter RS-232 output with voltage swing of ±5 to ±9V when loaded with 3 kΩ to GND, data rate up to 230 kbps. |
| 8 | R2IN | input | Second receiver RS-232 input with operating voltage range from -30 to 30V and input resistance of 3 to 7 kΩ. |
| 9 | R2OUT | output | Second receiver TTL/CMOS output with low voltage ≤0.4V at 3.2 mA and high voltage ≥VCC-0.4V at -1 mA. |
| 10 | T2IN | input | Second transmitter TTL/CMOS input with logic threshold low of 0.8V and high of 2V, input leakage current ±10 µA. |
| 11 | T1IN | input | First transmitter TTL/CMOS input with logic threshold low of 0.8V and high of 2V, input leakage current ±10 µA. |
| 12 | R1OUT | output | First receiver TTL/CMOS output with low voltage ≤0.4V at 3.2 mA and high voltage ≥VCC-0.4V at -1 mA. |
| 13 | R1IN | input | First receiver RS-232 input with operating voltage range from -30 to 30V and input resistance of 3 to 7 kΩ. |
| 14 | T1OUT | output | First transmitter RS-232 output with voltage swing of ±5 to ±9V when loaded with 3 kΩ to GND, data rate up to 230 kbps. |
| 15 | GND | power_in | Ground (0V reference) for all device circuitry. |
| 16 | VCC | power_in | Supply voltage 5V ±10% with typical quiescent current of 10 mA at no load. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-16-300mil |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ST202ECDR - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files:
st202ecdr-etched.step/st202ecdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st202ecdr.step/st202ecdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (18 pp, sha256
fe41e6c8c1ca7890, retrieved 2026-10-03, 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).