3.3V, High-Speed, RS-485/RS-422 Transceiver in SOT Package

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The MAX3362 low-power, high-speed transceiver for RS-485/RS-422 communication operates from a single +3.3V power supply. The device contains one differential transceiver consisting of a line driver and receiver. The transceiver operates at data rates up to 20Mbps, with an output skew of less than 6ns. Driver and receiver propagation delays are guaranteed below 50ns. This fast switching and low skew make the MAX3362 ideal for multidrop clock/data distribution applications.

The output level is guaranteed at +1.5V with a standard 54Ω load, compliant with RS-485 specifications. The transceiver draws 1.7mA supply current when unloaded or fully loaded with the drivers disabled. Additionally, the MAX3362 has a low-power shutdown mode, reducing the supply current to 1µA.

The MAX3362 has a 1/8-unit-load receiver input impedance, allowing up to 256 transceivers on the bus. The MAX3362 is designed for half-duplex communication. The device has a hot-swap feature that eliminates false transitions on the data cable during circuit initialization. The drivers are short-circuit current limited, and a thermal shutdown circuit protects against excessive power dissipation.

The MAX3362 is available in an 8-pin SOT package and specified over industrial and automotive temperature ranges.
MAX3362: Typical Operating Circuit MAX3362: Typical Operating Circuit Enlarge+

Key Features

  • Ideal for Multidrop RS-485/RS-422 Clock/ Data Distribution
    • Guaranteed 20Mbps Data Rate
    • 6ns (max) Transmitter and Receiver Skew
    • -7V to +12V Common-Mode Range
    • Hot-Swap Feature
    • Allows Up to 256 Transceivers on the Bus
    • Half-Duplex Operation
    • Interoperable with +5V Logic
  • Low Power Consumption Minimizes Thermal Dissipation
    • Operates from a Single +3.3V Supply
    • 1.7mA Operating Supply Current
    • 1µA Low-Power Shutdown Mode
  • Space-Saving 8-Pin SOT Package
  • Protection Features and Wide Temperature Range Increase System Reliability in Harsh Environments
    • Current Limiting and Thermal Shutdown
    • Automotive Temperature Range Variants


  • Clock/Data Distribution
  • Industrial Controls
  • Point-of-Sale Equipment
  • Security Equipment
  • Telecom Equipment

See parametric specs for RS-485/RS-422 Line Driver/Receivers (208)

Part NumberTx/RxDuplexVSUPPLY
Data Rate
Tx ENRx ENICC (Shutdn.)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
typmintypSee Notes
MAX3362 1Tx + 1RxHalf3.31.720000YesYes1256NoneNo
-40 to +85
-40 to +125
SOIC (N)/8
$2.68 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: MAX3362.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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