UT3232G-S16-R

@@ -0,0 +1,56 @@+# UT3232G-S16-R++**UTC Unisonic Tech** · RS232 ICs · SOP-16++UT3232G-S16-R from UTC Unisonic Tech, in a SOP-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 of the voltage-doubler charge-pump flying capacitor C1. Connect a 0.1μF ceramic capacitor between C1+ and C1- to generate the +5.5V V+ rail. |+| 2 | V+ | power_out | +5.5V rail generated internally by the voltage-doubler charge pump. Bypass to GND with a 0.1μF capacitor (C3); do not load externally. |+| 3 | C1- | passive | Negative terminal of the voltage-doubler charge-pump flying capacitor C1. Pairs with C1+ (pin 1) via a 0.1μF ceramic capacitor. |+| 4 | C2+ | passive | Positive terminal of the inverting charge-pump flying capacitor C2. Connect a 0.1μF ceramic capacitor between C2+ and C2- to generate the -5.5V V- rail. |+| 5 | C2- | passive | Negative terminal of the inverting charge-pump flying capacitor C2. Pairs with C2+ (pin 4) via a 0.1μF ceramic capacitor. |+| 6 | V- | power_out | -5.5V rail generated internally by the inverting charge pump. Bypass to GND with a 0.1μF capacitor (C4); do not load externally. |+| 7 | DOUT2 | output | RS-232 driver output for channel 2. Swings to approximately ±5V into a 3kΩ load; short-circuit current limited to ±60mA max. |+| 8 | RIN2 | input | RS-232 receiver input for channel 2. Accepts ±25V line signals with 5kΩ typical input impedance and Schmitt-trigger hysteresis (~0.3V). |+| 9 | ROUT2 | output | TTL/CMOS receiver output for channel 2. Drives VCC-referenced logic levels (VOH ≥ VCC-0.6V at -1mA; VOL ≤ 0.4V at 1.6mA). |+| 10 | DIN2 | input | TTL/CMOS driver input for channel 2. VIH ≥ 2.0V (3.3V VCC) / 2.4V (5.5V VCC); VIL ≤ 0.8V. Accepts up to 5.5V regardless of VCC. |+| 11 | DIN1 | input | TTL/CMOS driver input for channel 1. VIH ≥ 2.0V (3.3V VCC) / 2.4V (5.5V VCC); VIL ≤ 0.8V. Accepts up to 5.5V regardless of VCC. |+| 12 | ROUT1 | output | TTL/CMOS receiver output for channel 1. Drives VCC-referenced logic levels (VOH ≥ VCC-0.6V at -1mA; VOL ≤ 0.4V at 1.6mA). |+| 13 | RIN1 | input | RS-232 receiver input for channel 1. Accepts ±25V line signals with 5kΩ typical input impedance and Schmitt-trigger hysteresis (~0.3V). |+| 14 | DOUT1 | output | RS-232 driver output for channel 1. Swings to approximately ±5V into a 3kΩ load; short-circuit current limited to ±60mA max. |+| 15 | GND | power_in | Ground reference for logic and RS-232 signals, and the charge-pump return. |+| 16 | VCC | power_in | +3.0V to +5.5V supply voltage. Bypass to GND with a 0.1μF ceramic capacitor (CBYPASS). Typical supply current 0.3mA (1.0mA max) with no load. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UTC Unisonic Tech |+| Package | SOP-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `UT3232G-S16-R`+- `UT3232G-S16-RG-P16-R`++## CAD (KiCad official)++- Symbol: `UT3232G-S16-R`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UTC Unisonic Tech datasheet](docs/ut3232g-s16-r-datasheet.pdf) (7 pp, sha256 `1bb2828c39cdcd7d`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ut3232g-s16-r-datasheet.pdf)

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