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XR33038IDTR-F

Public Made by Adom

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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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XR33038IDTR-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xr33038idtr-f.step / xr33038idtr-f.glb are 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, 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