component
ST3232CTR
Public Made by Adomby adom
STMicroelectronics RS232 ICs, TSSOP-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
markdownST3232CTR
STMicroelectronics · RS232 ICs · TSSOP-16
ST3232CTR from STMicroelectronics, in a TSSOP-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 first charge pump capacitor requiring 0.1 µF external capacitor per application circuit. |
| 2 | V+ | power_out | Charge pump doubled voltage output terminal, ±5 to +7 V, requiring 0.1 µF external capacitor to GND. |
| 3 | C1- | passive | Negative terminal for first charge pump capacitor requiring 0.1 µF external capacitor per application circuit. |
| 4 | C2+ | passive | Positive terminal for second charge pump capacitor requiring 0.1 µF external capacitor per application circuit. |
| 5 | C2- | passive | Negative terminal for second charge pump capacitor requiring 0.1 µF external capacitor per application circuit. |
| 6 | V- | power_out | Charge pump inverted voltage output terminal, -7 to 0.3 V, requiring 0.1 µF external capacitor to GND. |
| 7 | T2OUT | output | Second transmitter RS-232 output with ±5 to ±5.4 V swing when loaded with 3 kΩ to ground. |
| 8 | R2IN | input | Second receiver RS-232 input voltage with -25 to +25 V operating range. |
| 9 | R2OUT | output | Second receiver TTL/CMOS logic output with voltage swing from 0 to VCC. |
| 10 | T2IN | input | Second transmitter TTL/CMOS logic input with 0.8 V low threshold and 2.0-2.4 V high threshold. |
| 11 | T1IN | input | First transmitter TTL/CMOS logic input with 0.8 V low threshold and 2.0-2.4 V high threshold. |
| 12 | R1OUT | output | First receiver TTL/CMOS logic output with voltage swing from 0 to VCC. |
| 13 | R1IN | input | First receiver RS-232 input voltage with -25 to +25 V operating range. |
| 14 | T1OUT | output | First transmitter RS-232 output with ±5 to ±5.4 V swing when loaded with 3 kΩ to ground. |
| 15 | GND | power_in | Ground connection providing 0 V reference for all circuits. |
| 16 | VCC | power_in | Supply voltage input with 3 V to 5.5 V operating range and 0.3-2 mA quiescent current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ST3232CTR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
st3232ctr-etched.step/st3232ctr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st3232ctr.step/st3232ctr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (18 pp, sha256
38bf6fa5becf1b1f, retrieved 2026-09-25, 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).