# SP3232EEN-HXY

**HXY MOSFET** · RS232 ICs · SOP-16

SP3232EEN-HXY from HXY MOSFET, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | C1+ | passive | Positive terminal for the first charge pump capacitor. |
| 2 | V+ | power_out | Doubled voltage terminal, with the transmitter high output voltage V+ rated at VCC-0.3 V in the absolute maximum ratings. |
| 3 | C1- | passive | Negative terminal for the first charge pump capacitor. |
| 4 | C2+ | passive | Positive terminal for the second charge pump capacitor. |
| 5 | C2- | passive | Negative terminal for the second charge pump capacitor. |
| 6 | V- | power_out | Inverted voltage terminal, with the transmitter low output voltage V- rated from -0.3 V to -14 V in the absolute maximum ratings. |
| 7 | T2OUT | output | Second transmitter output, with the voltage applied to the transmitter output rated from V- -13.2 V to V+ +12.2 V. |
| 8 | R2IN | input | Second receiver input, with the receiver input voltage rated at -25 V to 25 V. |
| 9 | R2OUT | output | Second receiver output, with the voltage applied to the receiver output rated from -0.3 V to VCC+0.3 V. |
| 10 | T2IN | input | Second transmitter input, with the transmitter input voltage rated from -0.3 V to V+ +6 V. |
| 11 | T1IN | input | First transmitter input, with the transmitter input voltage rated from -0.3 V to V+ +6 V. |
| 12 | R1OUT | output | First receiver output, with the voltage applied to the receiver output rated from -0.3 V to VCC+0.3 V. |
| 13 | R1IN | input | First receiver input, with the receiver input voltage rated at -25 V to 25 V. |
| 14 | T1OUT | output | First transmitter output, with the voltage applied to the transmitter output rated from V- -13.2 V to V+ +12.2 V. |
| 15 | GND | power_in | Ground reference for the device. |
| 16 | VCC | power_in | Supply voltage, rated at -0.3 V to 6.0 V in the absolute maximum ratings. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOP-16 |
| Category | Communication Interface Chip |
| Pins | 16 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VCC | -0.3 |  | 6 | V |  | 3 |
| Transmitter Low Output Voltage | V- | -0.3 |  | -14 | V |  | 3 |
| Transmitter Input Voltage | VTIN | -0.3 |  |  | V |  | 3 |
| Receiver Input Voltage | VRIN | -25 |  | 25 | V |  | 3 |
| Voltage Applied to Receiver Output | VROUT | -0.3 |  |  | V |  | 3 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 3 |
| Thermal resistance junction-to-case | Rth-jc |  | 30 |  | °C/W |  | 3 |
| Thermal resistance junction-to-ambient | Rth-ja |  | 95 |  | °C/W |  | 3 |
| Supply current | ISUPPLY |  | 0.3 | 1 | mA | No load, VCC = 3V or 5V | 3 |
| Input logic threshold low | VTIL |  |  | 0.8 | V |  | 3 |
| Input logic threshold high | VTIH | 2 |  |  | V |  | 3 |
| Transmitter input hysteresis | VHYS |  | 0.25 |  | V |  | 3 |
| ESD Human-Body Model (DOUT, RIN) |  | -15 |  | 15 | kV |  | 3 |
| ESD IEC-1000-4-2 (DOUT, RIN) |  | -8 |  | 8 | kV | Contact discharge | 3 |
| Receiver input voltage operating range | VRIN | -25 |  | 25 | V |  | 4 |
| RS-232 input threshold low | VRIL |  | 0.6 | 1.1 | V | TA = 25 °C, VCC = 3.3 V | 4 |
| RS-232 input threshold low | VRIL |  | 0.8 | 1.5 | V | TA = 25 °C, VCC = 5 V | 4 |
| RS-232 input threshold high | VRIH |  | 1.4 | 2.4 | V | TA = 25 °C, VCC = 3.3 V | 4 |
| RS-232 input threshold high | VRIH | 1.8 |  | 2.4 | V | TA = 25 °C, VCC = 5 V | 4 |
| Input hysteresis | VRIHYS |  | 0.5 |  | V |  | 4 |
| Input resistance | RRIN | 3 | 5 | 7 | kΩ | TA = 25 °C | 4 |
| TTL/CMOS Output voltage low | VROL |  |  | 0.4 | V | IOUT = 1.6 mA | 4 |
| Data transfer rate | DR |  | 250 |  | kbps | RL = 3 kΩ, CL2 = 1000 pF, one transmitter switching | 4 |
| Propagation delay input to output | tPHLR/tPLHR |  | 0.15 |  | µs | RXIN = RXOUT, CL = 150 pF | 4 |
| Receiver output enable time | tOER |  | 50 |  | ns | Normal operation | 4 |
| Receiver output disable time | tODR |  | 50 |  | ns | Normal operation | 4 |
| Transmitter propagation delay difference | /tPHLT - tTHL/ |  | 200 |  | ns |  | 4 |
| Receiver propagation delay difference | /tPHLR - tTHR/ |  | 50 |  | ns |  | 4 |
| Transition slew rate | SRT | 6 |  | 30 | V/µs | TA = 25 °C, RL = 3 kΩ to 7 kΩ, VCC = 3.3 V, CL = 150 pF to 1000 pF | 4 |
| Transition slew rate | SRT | 4 |  | 30 | V/µs | TA = 25 °C, RL = 3 kΩ to 7 kΩ, VCC = 3.3 V, CL = 150 pF to 2500 pF | 4 |
| Transmitter output voltage swing | VTOUT | -5.4 |  | 5.4 | V | All transmitter outputs loaded with 3 kΩ to GND | 4 |
| Transmitter output resistance | RTOUT | 300 |  |  | Ω | VCC = 0 V or 3.3 V or 5.5 V, VCC=±12 V | 4 |
| Output short-circuit current | ISC | -60 |  | 60 | mA |  | 4 |
| Output leakage current | ITOL | -25 |  | 25 | uA |  | 4 |

## CAD (KiCad official)

- Symbol: `SP3232EEN-HXY`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files: `sp3232een-hxy-etched.step` / `sp3232een-hxy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp3232een-hxy.step` / `sp3232een-hxy.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [HXY MOSFET datasheet](docs/sp3232een-hxy-datasheet.pdf) (8 pp, sha256 `ca8feee8fd7c8d1f`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/sp3232een-hxy-datasheet.pdf)