3Mbps RS-232 Transceivers with Low-Voltage Interface, ±15kV HBM ESD

Industry's Fastest RS-232 Transceivers (up to 3Mbps) with Integrated Logic-Level Translation

Please check latest availability status for a specific part variant.


The MAX13234E-MAX13237E are a family of 2 x 2 and 1 x 1 RS-232 and V.28/V.24 transceivers with high speed data rates up to 3Mbps that operate from either a 3.3V or 5V supply.

All devices achieve a 1µA supply current using Maxim’s AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the devices driving the transmitter and receiver inputs are inactive for more than 30s.

The MAX13234E–MAX13237E are available in space-saving TQFN and TSSOP packages and operate over the -40°C to +85°C temperature range.

MAX13234E, MAX13235E, MAX13236E, MAX13237E: Functional Diagrams MAX13234E, MAX13235E, MAX13236E, MAX13237E: Functional Diagrams Enlarge+

Key Features

  • Data Rate Up to 3Mbps for Faster Throughput
  • Saves Board Space
    • Integrated Low-Voltage Logic for Easy Interface with ASICs and Microcontrollers
    • Integrated ±15kV HBM ESD Protection
    • Integrated Charge-Pump Circuitry Requiring Only Four External 0.1µF Capacitors for 3.3V Operation
  • +3V to +5.5V Supply Voltage
  • AutoShutdown Plus Achieves 1µA Shutdown Current Reduces Power Consumption
  • Available in 20-pin TSSOP, TQFN-EP, and 16-pin TQFN
  • -40°C to +85°C Operating Temperature


  • Communication Systems
  • Data Cables
  • GPS Systems
  • Industrial Systems
  • Portable Devices
  • POS Systems
  • Telematics
  • Wireless Modules
Part NumberVSUPPLY
TxRxData Rate
Internal Charge PumpExt. CapsCap. Value
ESD Protect.
Rx Active in ShutdnPackage/PinsBudgetary
mintypnomSee Notes
$4.42 @1k
MAX13235E 223000
$4.42 @1k
MAX13237E 113000
$3.40 @1k
See All RS-232 Line Driver/Receivers (136)
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.

MAX13235EEVKIT: Evaluation Kit for the MAX13234E and MAX13235E

Quality and Environmental Data

Product Reliability Reports: MAX13234E.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX13234EETP+
  • MAX13234EETP+T
  • MAX13234EEUP+
  • MAX13234EEUP+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    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.

    Quality Management System >
    Environmental Management System >


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