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MAX13223E
±70V Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver

Industry's First RS-232 Transceiver with Integrated ±70V Fault Protection Eliminates Need for External Protection


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 188kB)
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Description
The MAX13223E is a +3.0V to +5.5V-powered EIA/TIA-232 and V.28 communications interface with fault protection on the RS-232 line interface. This allows shorts of the transmitter outputs and receiver inputs to voltages in the ±70V range without adversely affecting the MAX13223E.

The MAX13223E achieves 1µA supply current using Maxim's AutoShutdown™ feature. The MAX13223E automatically enters a low-power shutdown mode when the RS-232 cable is disconnected or the receivers are inactive. The device turns on again when a valid transition at any receiver input is sensed. A proprietary, high-efficiency, dual charge-pump power supply and a low-dropout transmitter combine to deliver true RS-232 performance from a single +3.0V to +5.5V supply.

The MAX13223E has two receivers and two drivers and is guaranteed to run at data rates of 250kbps for one transmitter switching while maintaining RS-232 output levels.

The MAX13223E operates from input voltages ranging from +3.0V to +5.5V and is available in a 20-pin, 6.5mm x 4.4mm, TSSOP package. The MAX13223E is specified over the -40°C to +85°C temperature range.

Key Features   Applications/Uses
  • ±70V Fault Protection
  • +3.0V to +5.5V Supply Voltage
  • Overvoltage Current Limiting
  • Current Protection at Transmitter Outputs
  • AutoShutdown
  • 250kbps (Max) Data Rate
  • Low Current Consumption in Shutdown 1µA (typ)
  • Thermal Shutdown Protection
  • ±8kV IEC 61000-4-2 Contact-Discharge Method
  • -40°C to +85°C Operating Temperature Range

 
  • Automotive
  • Base Stations
  • Industrial Equipment
  • POS Terminal Equipment
  • Telecomm Equipment
  • Telematics Equipment
  • Utility Meters

Key Specifications:  RS-232 Line Driver/Receivers
Part Number VSUPPLY
(V)
Tx Rx Data Rate
(kbps)
ICC
(mA)
Internal Charge Pump Ext. Caps Cap. Value
(µF)
Rx Active in Shutdn Package/Pins Price
min typ nom See Notes
MAX13223E 
3
3.3
5
2 2 250 8 Yes 4 0.33 0
TSSOP/20
$2.70 @1k
See All RS-232 Line Driver/Receivers (152)

Diagram
MAX13223E: Typical Operating Circuit
Typical Operating Circuit

Design Guides
  • Interface (PDF)

    Reliability Reports
  • Reliability Report: MAX13223E.pdf
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    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-2 of 2

    MAX13223E Free
    Sample
    Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX13223EEUP+T    
    Active

    Land Pattern: Not Available

    -40°C to +85°C See data sheet
    MAX13223EEUP+  
    Active TSSOP;20 pin;45.2 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • New Product Press Release 2009-08-27 

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    Document Ref.: 19-4585; Rev 0; 2009-05-13
    This page last modified: 2009-09-10


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