SP3232EEN-L

@@ -0,0 +1,57 @@+# SP3232EEN-L++**MaxLinear** · RS232 ICs · SOIC-16++SP3232EEN-L from MaxLinear, in a SOIC-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 capacitor C1. Connect a 0.1uF ceramic capacitor between C1+ and C1-. |+| 2 | V+ | power_out | +5.5V (typ.) charge-pump output. Bypass to GND with a 0.1uF ceramic capacitor (C3). Supplies the positive rail for the RS-232 drivers. |+| 3 | C1- | passive | Negative terminal of the voltage-doubler charge-pump capacitor C1. |+| 4 | C2+ | passive | Positive terminal of the inverting charge-pump capacitor C2. Connect a 0.1uF ceramic capacitor between C2+ and C2-. |+| 5 | C2- | passive | Negative terminal of the inverting charge-pump capacitor C2. |+| 6 | V- | power_out | -5.5V (typ.) charge-pump output. Bypass to GND with a 0.1uF ceramic capacitor (C4). Supplies the negative rail for the RS-232 drivers. |+| 7 | T2OUT | output | RS-232 driver 2 output. Inverting level-shifted output that swings between V+ and V- (typ. +/-5.4V). Short-circuit protected to GND continuously. |+| 8 | R2IN | input | RS-232 receiver 2 input. Accepts +/-15V RS-232 signaling with 3-7kOhm (5k typ.) input resistance and ~300mV hysteresis. |+| 9 | R2OUT | output | TTL/CMOS receiver 2 output. Inverted logic-level output referenced to VCC; drives VCC-0.6V HIGH at IOUT=-1mA and <0.4V LOW at IOUT=1.6mA. |+| 10 | T2IN | input | TTL/CMOS driver 2 input. VIL <=0.8V, VIH >=2.0V (VCC=3.3V) or >=2.4V (VCC=5.0V). ~250mV hysteresis, no internal pull-up (tie unused inputs to VCC or GND). |+| 11 | T1IN | input | TTL/CMOS driver 1 input. VIL <=0.8V, VIH >=2.0V (VCC=3.3V) or >=2.4V (VCC=5.0V). ~250mV hysteresis, no internal pull-up (tie unused inputs to VCC or GND). |+| 12 | R1OUT | output | TTL/CMOS receiver 1 output. Inverted logic-level output referenced to VCC; drives VCC-0.6V HIGH at IOUT=-1mA and <0.4V LOW at IOUT=1.6mA. |+| 13 | R1IN | input | RS-232 receiver 1 input. Accepts +/-15V RS-232 signaling with 3-7kOhm (5k typ.) input resistance and ~300mV hysteresis. |+| 14 | T1OUT | output | RS-232 driver 1 output. Inverting level-shifted output that swings between V+ and V- (typ. +/-5.4V). Short-circuit protected to GND continuously. |+| 15 | GND | power_in | Ground reference for logic and charge-pump return. |+| 16 | VCC | power_in | 3.0V to 5.5V supply input. Bypass to GND with a 0.1uF ceramic capacitor (C5) placed as close as possible to the pin. Typical supply current 0.3mA (no load, VCC=3.3V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | MaxLinear |+| Package | SOIC-16 |+| Category | Interface |+| Pins | 16 |++## Ordering variants++- `SP3232EEN-LEN-L`+- `SP3232EEN-LEN-L/TR`+- `SP3232EEN-LECY-L`++## CAD (KiCad official)++- Symbol: `SP3232EEN-L`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOIC-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [MaxLinear datasheet](docs/sp3232een-l-datasheet.pdf) (21 pp, sha256 `657cf6a156b351de`, 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-l-datasheet.pdf)

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