component
ST3232ECTR
Public Made by Adomby adom
STMicroelectronics RS232 ICs, TSSOP-16. Datasheet-verified pinout, 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
markdownST3232ECTR
STMicroelectronics · RS232 ICs · TSSOP-16
ST3232ECTR from STMicroelectronics, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | C1+ | passive | Positive terminal for the first charge pump capacitor; connect 0.1 µF externally to C1-. |
| 2 | V+ | power_out | Doubled voltage terminal from internal charge pump; maximum applied magnitude +7 V. |
| 3 | C1- | passive | Negative terminal for the first charge pump capacitor; connect 0.1 µF externally to C1+. |
| 4 | C2+ | passive | Positive terminal for the second charge pump capacitor; connect 0.1 µF externally to C2-. |
| 5 | C2- | passive | Negative terminal for the second charge pump capacitor; connect 0.1 µF externally to C2+. |
| 6 | V- | power_out | Inverted voltage terminal from internal charge pump; maximum applied magnitude -7 V. |
| 7 | T2OUT | output | Second transmitter output voltage; RS-232 driver output with ±5 to ±5.4 V swing into 3 kΩ load. |
| 8 | R2IN | input | Second receiver input voltage; accepts RS-232 input signals in range -25 V to +25 V. |
| 9 | R2OUT | output | Second receiver output voltage; TTL/CMOS compatible output, 0.4 V (low) to VCC-0.1 V (high). |
| 10 | T2IN | input | Second transmitter input voltage; logic threshold low 0.8 V, high 2.4 V at VCC = 5 V. |
| 11 | T1IN | input | First transmitter input voltage; logic threshold low 0.8 V, high 2.4 V at VCC = 5 V. |
| 12 | R1OUT | output | First receiver output voltage; TTL/CMOS compatible output, 0.4 V (low) to VCC-0.1 V (high). |
| 13 | R1IN | input | First receiver input voltage; accepts RS-232 input signals in range -25 V to +25 V. |
| 14 | T1OUT | output | First transmitter output voltage; RS-232 driver output with ±5 to ±5.4 V swing into 3 kΩ load. |
| 15 | GND | power_in | Ground; 0 V reference for all circuits. |
| 16 | VCC | power_in | Supply voltage; 3 V to 5.5 V power supply input with 0.3 mA to 1 mA typical current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ST3232ECTR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
st3232ectr-etched.step/st3232ectr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);st3232ectr.step/st3232ectr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (17 pp, sha256
25684545d38626b9, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).