component
XR33038IDTR-F
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXR33038IDTR-F
MaxLinear · RS-485 / RS-422 ICs · SOIC-8
XR33038IDTR-F 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 | RO | output | Receiver output: with RE low, RO is high when (A-B) is -50mV or higher and low when (A-B) is -200mV or lower. |
| 2 | RE | input | Receiver output enable (hot swap): RO is enabled when RE is low, is high-impedance when RE is high, and RE high with DE low enters shutdown. |
| 3 | DE | input | Driver output enable (hot swap): driver outputs are enabled when DE is high and high-impedance when DE is low, and DE low with RE high enters shutdown. |
| 4 | DI | input | Driver input: with DE high, a low on DI forces the non-inverting output low and the inverting output high, and a high on DI forces the reverse. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | A | bidirectional | Non-inverting receiver input and non-inverting driver output on the RS-485/RS-422 bus. |
| 7 | B | bidirectional | Inverting receiver input and inverting driver output on the RS-485/RS-422 bus. |
| 8 | VCC | power_in | Power supply input, specified for +2.8V to +5.5V and to be bypassed to ground with a 0.1 µF capacitor. |
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 |
|---|---|---|---|---|---|---|---|
| VCC Supply Voltage Range | VCC | 2.8 | 5.5 | V | 3 | ||
| Differential Driver Output (RS-422, RL = 100) | VOD | 2 | V | +3.0V ≤ VCC ≤ +5.5V; RL = 100 (RS-422), Figure 2 | 3 | ||
| Differential Driver Output (RS-485, RL = 54) | VOD | 1.5 | V | +3.0V ≤ VCC ≤ +5.5V; RL = 54 (RS-485), Figure 2 | 3 | ||
| Differential Driver Output over Common Mode | VOD | 1.5 | V | +3.0V ≤ VCC ≤ +5.5V; -7V ≤ VCM ≤ +12V, Figure 3 | 3 | ||
| Differential Driver Output (RS-422, RL = 100) | VOD | 1.8 | V | +2.8V ≤ VCC ≤ +3.0V; RL = 100 (RS-422), Figure 2 | 3 | ||
| Differential Driver Output (RS-485, RL = 54) | VOD | 1.4 | V | +2.8V ≤ VCC ≤ +3.0V; RL = 54 (RS-485), Figure 2 | 3 | ||
| Differential Driver Output over Common Mode | VOD | 1.1 | V | +2.8V ≤ VCC ≤ +3.0V; -7V ≤ VCM ≤ +12V, Figure 3 | 3 | ||
| Change in Magnitude of Differential Output Voltage | VOD | -0.2 | 0.2 | V | RL = 100 (RS-422), or RL = 54 (RS-485), Figure 2, Note 1 | 3 | |
| Driver Common-Mode Output Voltage (Steady State) | VCM | 3 | V | 3 | |||
| Change in Magnitude of Common-Mode Output Voltage | VCM | -0.2 | 0.2 | V | 3 | ||
| Logic High Threshold (DI, DE, RE) | VIH | 2.8 | V | +4.5V ≤ VCC ≤ 5.5V | 3 | ||
| Logic High Threshold (DI, DE, RE) | VIH | 2.3 | V | +4.0V ≤ VCC ≤ 4.5V | 3 | ||
| Logic High Threshold (DI, DE, RE) | VIH | 2 | V | +2.8V ≤ VCC ≤ +4.0V | 3 | ||
| Logic Low Threshold (DI, DE, RE) | VIL | 0.8 | V | 3 | |||
| Logic Input Current (DI) | IIN | -1 | 1 | µA | 0V ≤ VIN ≤ VCC, After first transition, Note 2 | 3 | |
| Logic Input Current (DE and RE) | IIN | -200 | 100 | 200 | µA | Until first transition, Note 2 | 3 |
| Input Current (A and B), positive | IA, B | 125 | µA | VOUT = +12V, DE = 0V, VCC = 0V or +5.5V | 3 | ||
| Input Current (A and B), negative | IA, B | -100 | µA | VOUT = -7V, DE = 0V, VCC = 0V or +5.5V | 3 | ||
| Output Leakage (Y and Z), positive | IOL | 125 | µA | Full Duplex (Note 2); VOUT = +12V, DE = 0V, VCC = 0V or +5.5V | 3 | ||
| Output Leakage (Y and Z), negative | IOL | -100 | µA | Full Duplex (Note 2); VOUT = -7V, DE = 0V, VCC = 0V or +5.5V | 3 | ||
| Driver Short-Circuit Output Current | IOSD | -250 | 250 | mA | -7V ≤ VOUT ≤ +12V, Figure 4 | 3 | |
| Receiver Differential Input Threshold Voltage (VA - VB) | VTH | -200 | -125 | -50 | mV | -7V ≤ VCM ≤ +12V | 4 |
| Receiver Output Low Voltage (RO) | VOL | 0.4 | V | IOUT = 1mA | 4 | ||
| High-Z Receiver Output Current | IOZR | -1 | 1 | µA | 0V ≤ VOUT ≤ VCC | 4 | |
| Receiver Output Short-Circuit Current | IOSC | -120 | 120 | mA | 0V ≤ VRO ≤ VCC | 4 | |
| Supply Current (driver enabled, DI low) | ICC | 400 | 600 | µA | No Load, RE = 0V, DE = VCC, DI = 0V | 4 | |
| Supply Current (receiver disabled, driver enabled) | ICC | 300 | 600 | µA | No Load, RE = VCC, DE = VCC, DI = 0V | 4 | |
| Supply Current (receiver and driver disabled) | ICC | 300 | 500 | µA | No Load, RE = 0V, DE = 0V, Receiver A and B inputs open | 4 | |
| Supply Current in Shutdown Mode | ISHDN | 0.04 | 1 | µA | RE = VCC, DE = 0V | 4 | |
| ESD Protection for A, B, Y, and Z, Human Body Model | -15 | 15 | kV | 4 | |||
| ESD Protection for A, B, Y, and Z, IEC 61000-4-2 Airgap | -15 | 15 | kV | 4 | |||
| ESD Protection for A, B, Y, and Z, IEC 61000-4-2 Contact | -8 | 8 | kV | 4 | |||
| ESD Protection for all other pins, Human Body Model | -4 | 4 | kV | 4 | |||
| Time to Shutdown (driver and receiver tables, XR33038) | tSHDN | 50 | 200 | 600 | ns | Notes 3 | 7 |
| Supply Voltage (absolute maximum) | VCC | -0.3 | 7 | V | 2 | ||
| Input Voltage at Control and Driver Input (RE, DE, and DI) | -0.3 | 7 | V | 2 | |||
| Receiver Output Voltage (RO) | -0.3 | V | Upper limit printed as VCC + 0.3V | 2 | |||
| Driver Output Voltage (A and B) | -18 | 18 | V | 2 | |||
| Receiver Input Voltage (A and B) | -18 | 18 | V | 2 | |||
| Transient Voltage Pulse | -70 | 70 | V | Through 100 (resistor as printed), Figure 5 | 2 | ||
| Driver Output Current | -250 | 250 | mA | 2 | |||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Lead Temperature | 300 | °C | Soldering, 10s | 2 | |||
| Maximum Junction Temperature | 150 | °C | 2 | ||||
| Operating Ambient Temperature | TA | -40 | 85 | °C | Unless otherwise noted | 3 | |
| Thermal Resistance, 8-pin SO | JA | 128.4 | °C/W | 8-pin SO, package power dissipation | 2 |
CAD (KiCad official)
- Symbol:
XR33038IDTR-F - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
xr33038idtr-f-etched.step/xr33038idtr-f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xr33038idtr-f.step/xr33038idtr-f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MaxLinear datasheet (19 pp, sha256
fa548c51581f4b2a, 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).