SP232EEN

@@ -0,0 +1,55 @@+# SP232EEN++**UMW** · RS232 ICs · SOP-16++SP232EEN from UMW, 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 C1 charge-pump flying capacitor (0.1 uF typical). Connect C1+ to C1- through the external capacitor; the internal charge pump uses this to generate V+ (approx. +2 Vcc) from Vcc. |+| 2 | V+ | power_out | Regulated positive charge-pump output, approximately +2 x Vcc (roughly +10 V for Vcc = 5 V). Bypass to GND with a 0.1 uF capacitor. Powers the RS-232 driver high-level output stage. |+| 3 | C1- | passive | Negative terminal of the C1 charge-pump flying capacitor (0.1 uF typical). Pairs with C1+ (pin 1) to form the doubler stage that generates V+. |+| 4 | C2+ | passive | Positive terminal of the C2 charge-pump flying capacitor (0.1 uF typical). Pairs with C2- (pin 5) to form the inverter stage that generates V-. |+| 5 | C2- | passive | Negative terminal of the C2 charge-pump flying capacitor (0.1 uF typical). Pairs with C2+ (pin 4) to form the inverter stage that generates V-. |+| 6 | V- | power_out | Regulated negative charge-pump output, approximately -2 x Vcc (roughly -10 V for Vcc = 5 V). Bypass to GND with a 0.1 uF capacitor. Powers the RS-232 driver low-level output stage. |+| 7 | T2OUT | output | RS-232 driver 2 output. Bipolar RS-232 line-level output swinging between approximately V- and V+; guaranteed +/-5 V swing into a 3 kOhm load. Short-circuit protected with output current limited to +/-60 mA. |+| 8 | R2IN | input | RS-232 receiver 2 input. Accepts RS-232 line levels (+/-30 V absolute max), internally pulled to ground through a 3-7 kOhm input resistor. Thresholds nominally 0.8 V (low) / 2.4 V (high) with ~0.5 V hysteresis. |+| 9 | R2OUT | output | RS-232 receiver 2 output at TTL/CMOS levels. Drives Vol <= 0.4 V at 3.2 mA and Voh >= 3.5 V at -1 mA; inverts the RS-232 sense of R2IN. |+| 10 | T2IN | input | RS-232 driver 2 TTL/CMOS input. Thresholds Vil <= 0.8 V, Vih >= 2 V; input leakage <= +/-10 uA over 0 to Vcc. |+| 11 | T1IN | input | RS-232 driver 1 TTL/CMOS input. Thresholds Vil <= 0.8 V, Vih >= 2 V; input leakage <= +/-10 uA over 0 to Vcc. |+| 12 | R1OUT | output | RS-232 receiver 1 output at TTL/CMOS levels. Drives Vol <= 0.4 V at 3.2 mA and Voh >= 3.5 V at -1 mA; inverts the RS-232 sense of R1IN. |+| 13 | R1IN | input | RS-232 receiver 1 input. Accepts RS-232 line levels (+/-30 V absolute max), internally pulled to ground through a 3-7 kOhm input resistor. Thresholds nominally 0.8 V (low) / 2.4 V (high) with ~0.5 V hysteresis. |+| 14 | T1OUT | output | RS-232 driver 1 output. Bipolar RS-232 line-level output swinging between approximately V- and V+; guaranteed +/-5 V swing into a 3 kOhm load. Short-circuit protected with output current limited to +/-60 mA. |+| 15 | GND | power_in | Ground / 0 V reference. Common return for Vcc, V+, V-, charge-pump capacitors and all logic/RS-232 signals. |+| 16 | VCC | power_in | Positive supply, +4.5 V to +5.5 V (5 V typical). Supply current is 10 mA max (no load, Ta = 25 C). Decouple to GND with a 0.1 uF capacitor close to the pin. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `SP232EENEEN`++## CAD (KiCad official)++- Symbol: `SP232EEN`+- 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:** [UMW datasheet](docs/sp232een-datasheet.pdf) (10 pp, sha256 `e216ce543906014c`, 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/sp232een-datasheet.pdf)

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