ST3232EBTR

@@ -0,0 +1,57 @@+# ST3232EBTR++**UMW** · RS232 ICs · TSSOP-16++ST3232EBTR from UMW, 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 of the voltage-doubler charge-pump flying capacitor C1. Connects to the external ceramic capacitor (typ. 0.1 µF at Vcc=3.3V; 0.047 µF at Vcc=5V) whose negative terminal ties to C1- (pin 3). |+| 2 | V+ | power_out | Positive charge-pump output (approximately +5.5V generated by the internal voltage-doubler). Requires an external reservoir capacitor (typ. 0.1 µF / 0.33 µF depending on Vcc) to GND. Absolute max +7V. |+| 3 | C1- | passive | Negative terminal of the voltage-doubler charge-pump flying capacitor C1 (paired with C1+ on pin 1). |+| 4 | C2+ | passive | Positive terminal of the inverting charge-pump flying capacitor C2. Connects to the negative terminal on C2- (pin 5). |+| 5 | C2- | passive | Negative terminal of the inverting charge-pump flying capacitor C2 (paired with C2+ on pin 4). |+| 6 | V- | power_out | Negative charge-pump output (approximately -5.5V generated by the internal inverter). Requires an external reservoir capacitor (typ. 0.1 µF / 0.33 µF depending on Vcc) to GND. Absolute max -7V. |+| 7 | DOUT2 | output | RS-232 driver #2 output. Drives the RS-232 line between roughly ±5V (VOH ≥ +5.0V, VOL ≤ -5.0V into 3 kΩ). Short-circuit current limited to ±35..±60 mA. Transition slew rate 6-30 V/µs. |+| 8 | RIN2 | input | RS-232 receiver #2 input. Accepts ±25V RS-232 line levels with 5 kΩ input impedance (3-7 kΩ). Hysteretic threshold: VIT+ ≈ 1.5V typ, VIT- ≈ 1.2V typ at Vcc=3.3V (0.3V typical hysteresis). |+| 9 | ROUT2 | output | TTL/CMOS receiver #2 output. Drives logic-level output rail-to-rail (VOH ≥ Vcc-0.6V at -1 mA; VOL ≤ 0.4V at 1.6 mA). |+| 10 | DIN2 | input | TTL/CMOS driver #2 logic input. VIH ≥ 2V (Vcc=3.3V) or ≥ 2.4V (Vcc=5.5V); VIL ≤ 0.8V. Accepts up to 5.0V logic input even with a 3.3V supply. |+| 11 | DIN1 | input | TTL/CMOS driver #1 logic input. VIH ≥ 2V (Vcc=3.3V) or ≥ 2.4V (Vcc=5.5V); VIL ≤ 0.8V. Accepts up to 5.0V logic input even with a 3.3V supply. |+| 12 | ROUT1 | output | TTL/CMOS receiver #1 output. Drives logic-level output rail-to-rail (VOH ≥ Vcc-0.6V at -1 mA; VOL ≤ 0.4V at 1.6 mA). |+| 13 | RIN1 | input | RS-232 receiver #1 input. Accepts ±25V RS-232 line levels with 5 kΩ input impedance (3-7 kΩ). Hysteretic threshold: VIT+ ≈ 1.5V typ, VIT- ≈ 1.2V typ at Vcc=3.3V. |+| 14 | DOUT1 | output | RS-232 driver #1 output. Drives the RS-232 line between roughly ±5V (VOH ≥ +5.0V, VOL ≤ -5.0V into 3 kΩ). Short-circuit current limited to ±35..±60 mA. Transition slew rate 6-30 V/µs. |+| 15 | GND | power_in | Device ground reference for both the logic side and the RS-232 charge-pump network. |+| 16 | VCC | power_in | Positive logic supply, +3.0V to +5.5V (absolute max +6.0V). Requires an external bypass capacitor to GND (typ. 0.1 µF). Typical no-load supply current ~1 mA (max 3 mA) at Vcc=3.3V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | TSSOP-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `ST3232EBTREBTR`+- `ST3232EBTRBDR`+- `ST3232EBTRCDR`++## CAD (KiCad official)++- Symbol: `ST3232EBTR`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [UMW datasheet](docs/st3232ebtr-datasheet.pdf) (11 pp, sha256 `72932421b486abe4`, retrieved 2026-08-17, tier: lcsc)+- **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/st3232ebtr-datasheet.pdf)

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