component
TRSF3221EIDBR
Public Made by Adomby adom
Texas Instruments RS232 ICs, SSOP-16-208mil. 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
markdownTRSF3221EIDBR
Texas Instruments · RS232 ICs · SSOP-16-208mil
TRSF3221EIDBR from Texas Instruments, in a SSOP-16-208mil. 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 | EN | input | Low input enables receiver ROUT output; high input sets ROUT to high impedance. |
| 2 | C1+ | passive | Positive lead of C1 capacitor. |
| 3 | V+ | power_out | Positive charge pump output for storage capacitor only. |
| 4 | C1− | passive | Negative lead of C1 capacitor. |
| 5 | C2+ | passive | Positive lead of C2 capacitor. |
| 6 | C2− | passive | Negative lead of C2 capacitor. |
| 7 | V− | power_out | Negative charge pump output for storage capacitor only. |
| 8 | RIN | input | RS232 line data input (from remote RS232 system). |
| 9 | ROUT | output | Logic data output (to UART). |
| 10 | INVALID | output | Invalid output pin. Output low when RIN input is unpowered. |
| 11 | DIN | input | Logic data input (from UART). |
| 12 | FORCEON | input | Automatic power-down control input. |
| 13 | DOUT | output | RS232 line data output (to remote RS232 system). |
| 14 | GND | power_in | Ground. |
| 15 | VCC | power_in | Supply Voltage, Connect to external 3V to 5.5V power supply. |
| 16 | FORCEOFF | input | Automatic power-down control input. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SSOP-16-208mil |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
TRSF3221EIDBR - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
- 3D model files:
trsf3221eidbr-etched.step/trsf3221eidbr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);trsf3221eidbr.step/trsf3221eidbr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
e624fd35ca2b0a97, retrieved 2026-10-07, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).