SP3232EEN

@@ -0,0 +1,55 @@+# SP3232EEN++**UMW** · RS232 ICs · SOP-16++SP3232EEN 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 voltage-doubler charge-pump flying capacitor C1. Connect an external ceramic capacitor between C1+ and C1- (typ. 0.1 µF at 3.3V, 0.047 µF at 5V per Table 1). |+| 2 | V+ | power_out | Regulated +5.5V output generated by the voltage-doubler charge pump. Bypass to GND with a ceramic capacitor C3 (typ. 0.1 µF to 0.33 µF per Table 1). Absolute max range -0.3V to +7.0V. |+| 3 | C1- | passive | Negative terminal of the voltage-doubler charge-pump flying capacitor C1. |+| 4 | C2+ | passive | Positive terminal of the inverting charge-pump flying capacitor C2. Connect an external ceramic capacitor between C2+ and C2-. |+| 5 | C2- | passive | Negative terminal of the inverting charge-pump flying capacitor C2. |+| 6 | V- | power_out | Regulated -5.5V output generated by the inverting charge pump. Bypass to GND with a ceramic capacitor C4 (typ. 0.1 µF to 0.33 µF per Table 1). Absolute max range +0.3V to -7.0V. |+| 7 | DOUT2 | output | RS-232 driver output for channel 2. Swings between V- and V+ (typ. ±5.4V into 3kΩ). Short-circuit current limited to ±60 mA max. Absolute max output range -13.2V to +13.2V. |+| 8 | RIN2 | input | RS-232 receiver input for channel 2. Accepts ±25V line levels; internal 5kΩ (typ.) pull-down to GND. Positive-going threshold typ. 1.5V, negative-going typ. 1.2V (VCC=3.3V). |+| 9 | ROUT2 | output | TTL/CMOS receiver output for channel 2. VOH typ. VCC-0.1V at IOH=-1.0 mA; VOL max 0.4V at IOL=1.6 mA. |+| 10 | DIN2 | input | TTL/CMOS driver input for channel 2. VIH min 2.0V (VCC=3.3V) / 2.4V (VCC=5.5V); VIL max 0.8V. Accepts 5.0V logic with 3.3V supply. Absolute max input 6.0V. |+| 11 | DIN1 | input | TTL/CMOS driver input for channel 1. VIH min 2.0V (VCC=3.3V) / 2.4V (VCC=5.5V); VIL max 0.8V. Accepts 5.0V logic with 3.3V supply. |+| 12 | ROUT1 | output | TTL/CMOS receiver output for channel 1. VOH typ. VCC-0.1V at IOH=-1.0 mA; VOL max 0.4V at IOL=1.6 mA. |+| 13 | RIN1 | input | RS-232 receiver input for channel 1. Accepts ±25V line levels; internal 5kΩ (typ.) pull-down to GND. Positive-going threshold typ. 1.5V, negative-going typ. 1.2V (VCC=3.3V). |+| 14 | DOUT1 | output | RS-232 driver output for channel 1. Swings between V- and V+ (typ. ±5.4V into 3kΩ). Short-circuit current limited to ±60 mA max. |+| 15 | GND | power_in | Device ground reference. All voltages are specified with respect to network GND. |+| 16 | VCC | power_in | Positive supply, +3.0V to +5.5V. Typical supply current 1 mA (no load, VCC=3.3V), 3 mA max. Bypass to GND with a ceramic capacitor CBYPASS (typ. 0.1 µF, see Table 1). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | UMW |+| Package | SOP-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `SP3232EENEEN`++## CAD (KiCad official)++- Symbol: `SP3232EEN`+- 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/sp3232een-datasheet.pdf) (11 pp, sha256 `053c1ca2d27a6dfd`, 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/sp3232een-datasheet.pdf)

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