# MAX3232EPE

**lingxingic** · RS232 ICs · DIP-16

MAX3232EPE from lingxingic, in a DIP-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 plate of charge-pump capacitor C1, connected to an external 0.2 uF capacitor. |
| 2 | V+ | power_out | Charge-pump positive supply output; absolute maximum -0.3 V to +7 V, and V+ minus V- must stay below 13 V. |
| 3 | C1- | passive | Negative plate of charge-pump capacitor C1, connected to an external 0.2 uF capacitor. |
| 4 | C2+ | passive | Positive plate of charge-pump capacitor C2, connected to an external 0.2 uF capacitor. |
| 5 | C2- | passive | Negative plate of charge-pump capacitor C2, connected to an external 0.2 uF capacitor. |
| 6 | V- | power_out | Charge-pump negative supply output; absolute maximum -7 V to -0.3 V. |
| 7 | TOUT2 | output | Channel 2 RS-232 driver output; absolute maximum -13.2 V to +13.2 V. |
| 8 | RIN2 | input | Channel 2 RS-232 receiver input; absolute maximum -15 V to +15 V, input range -15 V to +15 V. |
| 9 | ROUT2 | output | Channel 2 receiver output (CMOS level); absolute maximum -0.3 V to VCC+0.3 V. |
| 10 | TIN2 | input | Channel 2 driver logic input; absolute maximum -0.3 V to +6 V, VIL max 0.8 V and VIH min 2.4 V at VCC=5 V, and a floating input drives TOUT2 high. |
| 11 | TIN1 | input | Channel 1 driver logic input; absolute maximum -0.3 V to +6 V, VIL max 0.8 V and VIH min 2.4 V at VCC=5 V, and a floating input drives TOUT1 high. |
| 12 | ROUT1 | output | Channel 1 receiver output (CMOS level); absolute maximum -0.3 V to VCC+0.3 V. |
| 13 | RIN1 | input | Channel 1 RS-232 receiver input; absolute maximum -15 V to +15 V, input range -15 V to +15 V. |
| 14 | TOUT1 | output | Channel 1 RS-232 driver output; absolute maximum -13.2 V to +13.2 V. |
| 15 | GND | power_in | Ground reference for the device. |
| 16 | VCC | power_in | Supply voltage, 3 V to 5.5 V per the datasheet features; absolute maximum -0.3 V to +6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | lingxingic |
| Package | DIP-16 |
| Category | Interface |
| 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 | Tamb=25℃ unless otherwise specified | 6 |
| Positive output supply voltage | V+ | -0.3 |  | 7 | V | Tamb=25℃ unless otherwise specified | 6 |
| Negative output supply voltage | V- | -7 |  | -0.3 | V | Tamb=25℃ unless otherwise specified | 6 |
| Difference between V+ and V- | V+ - V- |  |  | 13 | V | Printed as <13 | 6 |
| Driver input voltage | TIN1, TIN2 | -0.3 |  | 6 | V | Tamb=25℃ unless otherwise specified | 6 |
| Driver output voltage | TOUT1, TOUT2 | -13.2 |  | 13.2 | V | Tamb=25℃ unless otherwise specified | 6 |
| Receiver input voltage | RIN1, RIN2 | -15 |  | 15 | V | Tamb=25℃ unless otherwise specified | 6 |
| Receiver output voltage | ROUT1, ROUT2 | -0.3 |  |  | V | Tamb=25℃ unless otherwise specified; max printed as VCC+0.3 | 6 |
| ESD HBM, bus pins |  | -15 |  | 15 | kV | HBM mode, bus pins | 6 |
| ESD HBM, all other pins |  | -7 |  | 7 | kV | HBM mode, all other pins | 6 |
| Supply voltage range | VCC | 3 |  | 5.5 | V |  | 3 |
| Operating temperature range |  | -40 |  | 85 | ℃ |  | 3 |
| Quiescent supply current | ICC |  | 0.9 | 1.5 | mA | No load, VCC=3.3V, TINx=GND or VCC, Tamb=25℃ | 6 |
| Quiescent supply current | ICC |  | 1 | 1.5 | mA | No load, VCC=5V, TINx=GND or VCC, Tamb=25℃ | 6 |
| Driver input low voltage | VIL |  |  | 0.8 | V | TIN1, TIN2, VCC=3.3V | 6 |
| Driver input high voltage | VIH | 2 |  |  | V | TIN1, TIN2, VCC=3.3V | 6 |
| Driver input high voltage | VIH | 2.4 |  |  | V | TIN1, TIN2, VCC=5.0V | 6 |
| Driver input leakage current | IIL | -1 | 0.1 | 15 | μA | TIN1, TIN2, VIN=0V~VCC, Tamb=25℃ | 6 |
| Driver output voltage | TVOUT | -5 | 5.4 |  | V | RL=3kΩ, TINx=GND or VCC, VCC=3.3V | 6 |
| Receiver low input threshold | VIT- | 0.6 | 1.3 |  | V | VCC=3.3V | 7 |
| Receiver low input threshold | VIT- | 0.8 | 1.3 |  | V | VCC=5.0V | 7 |
| Receiver high input threshold | VIT+ |  | 1.6 | 2.4 | V | VCC=3.3V | 7 |
| Receiver input voltage range | VIN | -15 |  | 15 | V |  | 7 |
| Receiver input hysteresis voltage | RXHYS |  |  | 0.3 | V |  | 7 |
| Receiver input resistance | RXR | 3 | 5 | 7 | kΩ |  | 7 |
| Receiver output leakage current | ROI | -15 | 2.4 | 10 | μA | ROUT1, ROUT2, VCC=3.3V | 7 |
| Receiver output leakage current | ROI | -15 | 2.7 | 10 | μA | ROUT1, ROUT2, VCC=5.0V | 7 |
| Receiver output low voltage | VOL |  | 90 | 300 | mV | ROUT1, ROUT2, IOUT=1.5mA, VCC=3.3V | 7 |
| Receiver output low voltage | VOL |  | 70 | 300 | mV | ROUT1, ROUT2, IOUT=1.5mA, VCC=5V | 7 |
| Max data rate | fMAX |  |  | 250 | Kbps | RL=3kΩ, CL=1000pF, 1 channel working | 7 |
| Driver slew rate, rising | SR | 6 | 9 | 30 | V/μs | TX, Vcc=3.3V, RL=3kΩ, CL=1000pF, raise | 7 |
| Driver slew rate, falling | SR | 6 | 11 | 30 | V/μs | TX, Vcc=3.3V, RL=3kΩ, CL=1000pF, fall | 7 |
| Driver propagation delay, low-to-high | tDPLH |  | 600 | 800 | ns | CL=150pF | 7 |
| Driver propagation delay, high-to-low | tDPHL |  | 620 | 800 | ns | CL=150pF | 7 |
| Driver propagation delay skew | ∆tDP |  | 20 | 300 | ns | tDPLH − tDPHL | 7 |
| Receiver propagation delay, high-to-low | tRPHL |  | 160 | 300 | ns | RX, Vcc=3.3V, CL=150pF | 7 |
| Receiver propagation delay, high-to-low | tRPHL |  | 180 | 300 | ns | RX, Vcc=5V, CL=150pF | 7 |
| Receiver propagation delay, low-to-high | tRPLH |  | 150 | 400 | ns | RX, Vcc=3.3V, CL=150pF | 7 |
| Receiver propagation delay, low-to-high | tRPLH |  | 210 | 400 | ns | RX, Vcc=5V, CL=150pF | 7 |
| Receiver propagation delay skew | ∆tRP |  | 10 | 100 | ns | Vcc=3.3V, tRPLH − tRPHL | 7 |
| Receiver propagation delay skew | ∆tRP |  | 30 | 100 | ns | Vcc=5V, tRPLH − tRPHL | 7 |
| Driver output short-circuit current | TOSC | -60 | 25 | 60 | mA | VOUT=0V, VCC=3.3V | 7 |
| Driver output short-circuit current | TOSC |  | 30 |  | mA | VOUT=0V, VCC=5V | 7 |
| Driver output resistance | TROUT |  | 2 |  | MΩ | Vcc=V+=V-=0V, TOUTx=+2V | 6 |
| Receiver output high voltage | VOH |  | 3.2 |  | V | ROUT1, ROUT2, IOUT=-1.5mA, VCC=3.3V | 7 |
| Receiver output high voltage | VOH |  | 4.9 |  | V | ROUT1, ROUT2, IOUT=-1.5mA, VCC=5V | 7 |

## CAD (KiCad official)

- Symbol: `MAX3232EPE`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `max3232epe-etched.step` / `max3232epe-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max3232epe.step` / `max3232epe.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [lingxingic datasheet](docs/max3232epe-datasheet.pdf) (13 pp, sha256 `06f092e6547853f2`, retrieved 2026-10-15, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/max3232epe-datasheet.pdf)