# XL3483

**XINLUDA** · RS-485 / RS-422 ICs · SOP-8

XL3483 from XINLUDA, in a SOP-8. 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 | RO | output | Receiver output; it is driven HIGH when the receiver inputs are left open (fail-safe), and the receiver is enabled by a logic LOW on RE (pin 2). |
| 2 | RE | input | Active-LOW receiver output enable; a logic LOW enables the receiver and a logic HIGH disables it, and RE high with DE low puts the device into shutdown (supply current typically 1µA, 10µA maximum). |
| 3 | DE | input | Active-HIGH driver output enable; a logic HIGH enables the differential driver outputs and a logic LOW forces them into high impedance (high-Z). |
| 4 | DI | input | Driver input that sets the state of the differential driver outputs A and B when DE is HIGH. |
| 5 | GND | power_in | Ground connection for the device. |
| 6 | A | bidirectional | Non-inverting driver output and receiver input; receiver input common-mode range is -7V to +12V. |
| 7 | B | bidirectional | Inverting driver output and receiver input; receiver input common-mode range is -7V to +12V. |
| 8 | VCC | power_in | Positive supply, specified at 3.3V ±5% for normal operation, with an absolute maximum of 6.0V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XINLUDA |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input high voltage |  | 2 |  |  | V | Applies to DE, DI, RE | 4 |
| Input low voltage |  |  |  | 0.8 | V | Applies to DE, DI, RE | 4 |
| Input current |  | -10 |  | 10 | µA | Applies to DE, DI, RE | 4 |
| Differential output voltage (RS-422 load) |  | 2 |  |  | V | With load R = 50Ω; Figure 1 | 4 |
| Differential output voltage (RS-485 load) |  | 1.5 |  |  | V | With load R = 27Ω; Figure 1 | 4 |
| Change in magnitude of driver differential output voltage for complementary states |  |  |  | 0.2 | V | R = 27Ω or R = 50Ω; Figure 1 | 4 |
| Driver common-mode output voltage |  |  |  | 3 | V | R = 27Ω or R = 50Ω; Figure 1 | 4 |
| Driver short circuit current, VOUT = HIGH |  | -250 |  | 250 | mA | -7V ≤ VO ≤ +12V; Figure 8 | 4 |
| Driver short circuit current, VOUT = LOW |  | -250 |  | 250 | mA | -7V ≤ VO ≤ +12V; Figure 8 | 4 |
| Maximum data rate (driver) |  |  |  | 250 | kbps | RE = VCC, DE = VCC | 4 |
| Driver input to output, tPLH | tPLH | 400 | 900 | 1500 | ns | Figures 2 & 9 | 4 |
| Driver input to output, tPHL | tPHL | 400 | 900 | 1500 | ns | Figures 2 & 9 | 4 |
| Differential driver skew | /tDO1- tDO2/ |  |  | 10 | ns | Figures 2 and 10 | 4 |
| Driver rise or fall time |  |  | 700 | 1000 | ns | From 10%-90%; Figures 3 and 10 | 4 |
| Driver enable to output high |  |  | 700 | 1300 | ns | Figures 4 and 11 | 5 |
| Driver enable to output low |  |  | 690 | 1300 | ns | Figures 5 and 11 | 5 |
| Driver disable time from high |  |  | 80 | 120 | ns | Figures 5 and 11 | 5 |
| Driver disable time from low |  |  | 90 | 120 | ns | Figures 4 and 11 | 5 |
| Differential input threshold |  | -0.2 |  | 0.2 | Volts | -7V ≤ VCM ≤ 12V | 4 |
| Output voltage LOW |  |  |  | 0.4 | V | VID = -200mV, IO = 2.5mA | 4 |
| Three-state (high impedance) output current |  | -1 |  | 1 | µA | 0V ≤ VO ≤ VCC; RE = VCC | 4 |
| Input resistance |  | 12 | 15 |  | kΩ | -7V ≤ VCM ≤ 12V | 4 |
| Input current (A, B), VIN = 12V |  |  |  | 1 | mA | DE = 0V, VCC = 0V or 3.6V, VIN = 12V | 4 |
| Input current (A, B), VIN = -7V |  | -0.8 |  |  | mA | DE = 0V, VCC = 0V or 3.6V, VIN = -7V | 4 |
| Short circuit current |  | 7 |  | 60 | mA | 0V ≤ VCM ≤ VCC | 4 |
| Maximum data rate (receiver) |  |  |  | 250 | kbps | RE = 0V, DE = 0V | 5 |
| Receiver input to output, tRPLH | tRPLH | 35 | 70 | 120 | ns | Figures 6 and 12 | 5 |
| Receiver input to output, tRPHL | tRPHL | 35 | 70 | 120 | ns | Figures 6 and 12 | 5 |
| Differential receiver skew | tRSKEW |  |  | 50 | ns | tRSKEW = /tRPHL- tRPLH/, Figures 6 and 12 | 5 |
| Receiver enable to output low |  |  | 45 | 70 | ns | Figures 7 and 13, S1 closed, S2 open | 5 |
| Receiver enable to output high |  |  | 45 | 70 | ns | Figures 7 and 13, S2 closed, S1 open | 5 |
| Receiver disable from low |  |  | 45 | 70 | ns | Figures 7 and 13, S1 closed, S2 open | 5 |
| Receiver disable from high |  |  | 45 | 70 | ns | Figures 7 and 13, S2 closed, S1 open | 5 |
| Time to shutdown |  | 50 | 200 | 600 | ns | RE = 5V, DE = 0V | 5 |
| Driver enable from shutdown to output high |  |  |  | 2000 | ns | Figures 4 and 11 | 5 |
| Driver enable from shutdown to output low |  |  |  | 2000 | ns | Figures 5 and 11 | 5 |
| Receivers enabled from shutdown to output high |  |  |  | 2500 | ns | Figures 7 and 13, S2 closed, S1 open | 5 |
| Receivers enabled from shutdown to output low |  |  |  | 2500 | ns | Figures 7 and 13, S1 closed, S2 open | 5 |
| Supply current, no load |  |  | 1000 | 2000 | µA | RE, DI = 0V or VCC; DE = VCC | 5 |
| Supply current, no load |  |  | 800 | 1500 | µA | RE = 0V, DI = 0V or VCC, DE = 0V | 5 |
| Shutdown mode supply current |  |  |  | 10 | µA | DE = 0V, RE = VCC | 5 |
| Supply voltage | VCC |  |  | 6 | V |  | 3 |
| Input voltage, logic |  | -0.3 |  | 6 | V |  | 3 |
| Input voltage, drivers |  | -0.3 |  | 6 | V |  | 3 |
| Input voltage, receivers |  | -15 |  | 15 | V |  | 3 |
| Output voltage, drivers |  | -0.3 |  | 6 | V |  | 3 |
| Output voltage, receivers |  | -15 |  | 15 | V |  | 3 |
| Storage temperature |  | -65 |  | 150 | ˚C |  | 3 |
| ESD, Human Body Model |  | -2 |  | 2 | kV | Human Body Model (HBM) | 3 |
| Operating ambient temperature | TAMB | -40 |  | 85 | °C | Ordering information temperature range | 10 |
| Common-mode input voltage range |  | -7 |  | 12 | V | Receiver common-mode range | 1 |
| Supply voltage tolerance | VCC | -5 |  | 5 | % | VCC = 3.3V ±5% unless otherwise noted | 4 |
| Input hysteresis |  |  | 20 |  | mV | VCM = 0V | 4 |
| Supply voltage | VCC |  | 3.3 |  | V | VCC = 3.3V ±5% unless otherwise noted | 4 |
| Package thermal resistance, junction to ambient | ѲJA |  | 128.4 |  | ˚C/W | 8-pin NSOIC | 3 |

## CAD (KiCad official)

- Symbol: `XL3483`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `xl3483-etched.step` / `xl3483-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xl3483.step` / `xl3483.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [XINLUDA datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905583344410624) (10 pp, sha256 `3baf41ae5e6c1b23`, retrieved 2026-10-19, 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/xl3483-datasheet.pdf)