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Maxim > Products > [Interface and Interconnect] 
MAX212
+3V-Powered, Low-Power, True RS-232 Transceiver


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 128kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX212 RS-232 transceiver is intended for 3V-powered EIA/TIA-232E and V.28/V.24 communication interfaces where three drivers and five receivers are needed with minimum power consumption. The operating voltage range extends from 3.6V down to 3.0V while still maintaining true RS-232 and EIA/TIA-562 voltage levels.

A 1µA typical shutdown mode reduces power consumption, extending battery life in portable systems. While shut down, all receivers can remain active or can be disabled under logic control. This enables a system incorporating the CMOS MAX212 to be in low-power shutdown mode and monitor incoming RS-232 activity.

A guaranteed data rate of 120kbps provides compatibility with popular software for communicating with personal computers.

Three-state drivers on all receiver outputs are provided so that multiple receivers, generally of different interface standards, can be wire-ORed at the UART.

The MAX212 is available in both small-outline (SO) and shrink-small-outline (SSOP) packages. The SSOP package occupies less than half of the board area required by the equivalent SO package.

Key Features   Applications/Uses
SUPERIOR TO BIPOLAR:
  • Operates from Single +3.0V to +3.6V Supply
  • 24-Pin SSOP or Wide SO Packages
  • Meets All EIA/TIA-232E and EIA/TIA-562 Specifications
  • 3mA Max Supply Current (Unloaded)
  • 1µA Low-Power Shutdown Mode
  • All Receivers Active During Low-Power Shutdown
  • Mouse Compatible at 3.0V
  • Low-Cost, Surface-Mount External Components
  • 120kbps Guaranteed Data Rate-LapLink™ Compatible
  • Three-State Receiver Outputs
  • Evaluation Kit Available
  • Flow-Through Pinout

 
  		• Computers: Notebooks/Palmtops/Subnotebooks
  		• Instruments
  		• Peripherals
  		• Printers

    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
    MAX212  3.3 3 5 120 1.5 Yes 2 0.33/0.68 5
    SOIC(W)/24
    SSOP/24
    		 $3.29 @1k
    See All RS-232 Line Driver/Receivers (152)

    Diagram
    MAX212: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 2141: Determining Clock Accuracy Requirements for UART Communications - MAX212

    Design Guides
  		• Interface (PDF)
  		• Low-Power Notebook ICs (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    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: 1-14 of 14

    MAX212 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX212C/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX212EVKIT-SO    
    		Active

    Land Pattern: Not Available

    		See data sheet
    MAX212CWG    
    		Active SOIC(W);24 pin;164 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0182 (PDF)
    Use pkgcode/variation: W24-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX212CWG-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX212EWG    
    		Active SOIC(W);24 pin;164 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0182 (PDF)
    Use pkgcode/variation: W24-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX212EWG-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX212CAG    
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX212CAG-T    
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX212CAG+  
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX212CAG+T    
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX212EAG    
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX212EAG-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX212EAG+  
    		Active SSOP;24 pin;66 mm²
    Outline Drawing: 21-0056 (PDF)
    Land Pattern: 90-0110 (PDF)
    Use pkgcode/variation: A24+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX212EAG+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    Notes and Comments
  		• Chip inductor, drives mice

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    Document Ref.: 19-0162; Rev 2; 1994-02-01
    This page last modified: 2007-07-17


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