component
SP3074EEN-L
Public Made by Adomby adom
MaxLinear RS-485 / RS-422 ICs, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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SP3074EEN-L
MaxLinear · RS-485 / RS-422 ICs · SOIC-8
SP3074EEN-L from MaxLinear, in a SOIC-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 | VCC | power_in | Positive supply, 3.3V ±0.3V; bypass VCC to GND with a 0.1µF capacitor. |
| 2 | RO | output | Receiver output: RO is high when (A - B) ≥ -50mV and low when (A - B) ≤ -200mV, and it fails safe to high for open or shorted inputs. |
| 3 | DI | input | Driver input: a low level forces the noninverting output Y low and the inverting output Z high, and a high level forces Y high and Z low. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | Y | output | Noninverting driver output, meeting RS-485/RS-422 levels with short-circuit current limiting and thermal shutdown. |
| 6 | Z | output | Inverting driver output, meeting RS-485/RS-422 levels with short-circuit current limiting and thermal shutdown. |
| 7 | B | input | Inverting receiver input; the receiver input range is -7V to +12V common-mode. |
| 8 | A | input | Noninverting receiver input; the receiver input range is -7V to +12V common-mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MaxLinear |
| Package | SOIC-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 |
|---|---|---|---|---|---|---|---|
| Differential driver output voltage (RS-422 load) | VOD | 2 | V | RL = 100Ω (RS-422), Figure 1 | 3 | ||
| Change in magnitude of differential output voltage | ΔVOD | 0.2 | V | RL = 54 or 100Ω, Figure 1 | 3 | ||
| Change in magnitude of common mode output voltage | ΔVOC | -0.2 | 0.2 | V | RL = 54 or 100Ω, Figure 1 | 3 | |
| Input high voltage | VIH | 2 | V | DE, DI, RE | 3 | ||
| Input low voltage | VIL | 0.8 | V | DE, DI, RE | 3 | ||
| Input current | IIN | -1 | 1 | µA | DE, DI, RE | 3 | |
| Output leakage (Y and Z; full duplex A and B) | IO | 125 | µA | DE = GND, VCC = GND or 3.6V, VIN = +12 V | 3 | ||
| Output leakage (Y and Z; full duplex A and B) | IO | -100 | µA | DE = GND, VCC = GND or 3.6V, VIN = -7V | 3 | ||
| Driver short-circuit current | IOSD | -250 | 250 | mA | -7V ≤ VOUT ≤ 12V, Figure 4A | 3 | |
| Receiver differential threshold (sensitivity) | VTH | -200 | -50 | mV | -7V ≤ VCM ≤ 12V | 4 | |
| Receiver output low voltage | VOL | 0.4 | V | IO = 1mA | 4 | ||
| Tri-state output current at receiver | IOZR | -1 | 1 | µA | 0 ≤ VO ≤ VCC | 4 | |
| Receiver input resistance | RIN | 96 | kΩ | -7V ≤ VCM ≤ 12V | 4 | ||
| Receiver output short-circuit current | -60 | 60 | mA | 0V ≤ RO ≤ VCC | 4 | ||
| ESD protection, Human Body Model (Y, Z, A, B) | -15 | 15 | kV | Human Body Model | 4 | ||
| ESD protection, Air Gap (IEC 1000-4-2) | -15 | 15 | kV | Air Gap (IEC 1000-4-2) | 4 | ||
| ESD protection, Contact (IEC 1000-4-2) | -8 | 8 | kV | Contact (IEC 1000-4-2) | 4 | ||
| Supply voltage VCC | VCC | 6 | V | 3 | |||
| Input voltage at control input pins (RE, DE) | -0.3 | 6 | V | 3 | |||
| Driver input voltage (RE, DE) | -0.3 | 6 | V | 3 | |||
| Driver output voltage (A, B, Y, & Z) | -8 | 13 | V | 3 | |||
| Receiver input voltage (A, B) | -8 | 13 | V | 3 | |||
| Junction temperature | 150 | ºC | 3 | ||||
| Storage temperature range | -65 | 150 | ºC | 3 | |||
| Lead temperature (soldering) | 300 | ºC | soldering, 10s | 3 | |||
| Operating temperature range (EEN grade) | TA | -40 | 85 | ºC | SP307_EEN | 3 | |
| Supply voltage VCC (nominal) | VCC | -0.3 | 3.3 | 0.3 | V | VCC = +3.3 ±0.3V, unless otherwise noted | 3 |
CAD (KiCad official)
- Symbol:
SP3074EEN-L - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
sp3074een-l-etched.step/sp3074een-l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sp3074een-l.step/sp3074een-l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MaxLinear datasheet (19 pp, sha256
36aba08af75de5c4, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# SP3074EEN-L
**MaxLinear** · RS-485 / RS-422 ICs · SOIC-8
SP3074EEN-L from MaxLinear, in a SOIC-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 | VCC | power_in | Positive supply, 3.3V ±0.3V; bypass VCC to GND with a 0.1µF capacitor. |
| 2 | RO | output | Receiver output: RO is high when (A - B) ≥ -50mV and low when (A - B) ≤ -200mV, and it fails safe to high for open or shorted inputs. |
| 3 | DI | input | Driver input: a low level forces the noninverting output Y low and the inverting output Z high, and a high level forces Y high and Z low. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | Y | output | Noninverting driver output, meeting RS-485/RS-422 levels with short-circuit current limiting and thermal shutdown. |
| 6 | Z | output | Inverting driver output, meeting RS-485/RS-422 levels with short-circuit current limiting and thermal shutdown. |
| 7 | B | input | Inverting receiver input; the receiver input range is -7V to +12V common-mode. |
| 8 | A | input | Noninverting receiver input; the receiver input range is -7V to +12V common-mode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MaxLinear |
| Package | SOIC-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 |
|---|---|---|---|---|---|---|---|
| Differential driver output voltage (RS-422 load) | VOD | 2 | | | V | RL = 100Ω (RS-422), Figure 1 | 3 |
| Change in magnitude of differential output voltage | ΔVOD | | | 0.2 | V | RL = 54 or 100Ω, Figure 1 | 3 |
| Change in magnitude of common mode output voltage | ΔVOC | -0.2 | | 0.2 | V | RL = 54 or 100Ω, Figure 1 | 3 |
| Input high voltage | VIH | 2 | | | V | DE, DI, RE | 3 |
| Input low voltage | VIL | | | 0.8 | V | DE, DI, RE | 3 |
| Input current | IIN | -1 | | 1 | µA | DE, DI, RE | 3 |
| Output leakage (Y and Z; full duplex A and B) | IO | | | 125 | µA | DE = GND, VCC = GND or 3.6V, VIN = +12 V | 3 |
| Output leakage (Y and Z; full duplex A and B) | IO | -100 | | | µA | DE = GND, VCC = GND or 3.6V, VIN = -7V | 3 |
| Driver short-circuit current | IOSD | -250 | | 250 | mA | -7V ≤ VOUT ≤ 12V, Figure 4A | 3 |
| Receiver differential threshold (sensitivity) | VTH | -200 | | -50 | mV | -7V ≤ VCM ≤ 12V | 4 |
| Receiver output low voltage | VOL | | | 0.4 | V | IO = 1mA | 4 |
| Tri-state output current at receiver | IOZR | -1 | | 1 | µA | 0 ≤ VO ≤ VCC | 4 |
| Receiver input resistance | RIN | 96 | | | kΩ | -7V ≤ VCM ≤ 12V | 4 |
| Receiver output short-circuit current | | -60 | | 60 | mA | 0V ≤ RO ≤ VCC | 4 |
| ESD protection, Human Body Model (Y, Z, A, B) | | -15 | | 15 | kV | Human Body Model | 4 |
| ESD protection, Air Gap (IEC 1000-4-2) | | -15 | | 15 | kV | Air Gap (IEC 1000-4-2) | 4 |
| ESD protection, Contact (IEC 1000-4-2) | | -8 | | 8 | kV | Contact (IEC 1000-4-2) | 4 |
| Supply voltage VCC | VCC | | | 6 | V | | 3 |
| Input voltage at control input pins (RE, DE) | | -0.3 | | 6 | V | | 3 |
| Driver input voltage (RE, DE) | | -0.3 | | 6 | V | | 3 |
| Driver output voltage (A, B, Y, & Z) | | -8 | | 13 | V | | 3 |
| Receiver input voltage (A, B) | | -8 | | 13 | V | | 3 |
| Junction temperature | | | | 150 | ºC | | 3 |
| Storage temperature range | | -65 | | 150 | ºC | | 3 |
| Lead temperature (soldering) | | | | 300 | ºC | soldering, 10s | 3 |
| Operating temperature range (EEN grade) | TA | -40 | | 85 | ºC | SP307_EEN | 3 |
| Supply voltage VCC (nominal) | VCC | -0.3 | 3.3 | 0.3 | V | VCC = +3.3 ±0.3V, unless otherwise noted | 3 |
## CAD (KiCad official)
- Symbol: `SP3074EEN-L`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sp3074een-l-etched.step` / `sp3074een-l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp3074een-l.step` / `sp3074een-l.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [MaxLinear datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586177509516333056) (19 pp, sha256 `36aba08af75de5c4`, retrieved 2026-10-18, 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/sp3074een-l-datasheet.pdf)