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Maxim > Products > [Interface and Interconnect] 
MAX3380E, MAX3381E
+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic Pins

Ideal for Data Cable Applications


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 232kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX3380E/MAX3381E are +2.35V to +5.5V-powered EIA/TIA-232 and V.28/V.24 communication interfaces with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection on both the TTL and RS-232 sides. The MAX3380E/MAX3381E have two receivers and two transmitters. All RS-232 inputs, outputs, and logic input pins are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge method and the Human Body Model, and ±8kV using IEC 1000-4-2 Contact Discharge method.

The proprietary low-dropout transmitter output stage enables true RS-232 performance from a +3.1V to +5.5V supply with a dual charge pump. The parts reduce the transmitter output levels to RS-232-compatible levels with no increase in supply current for supplies less than +3.1V and greater than +2.35V. The +2.35V to +5.5V operating range is fully compatible with lithium-ion (Li+) batteries. The charge pump requires only four small 0.1µF capacitors for operation.

The MAX3380E/MAX3381E transceivers use Maxim's revolutionary AutoShutdown Plus™ feature to automatically enter a 1µA shutdown mode. These devices shut down the on-board power supply and drivers when they do not sense a valid signal transition for 30 seconds on either the receiver or transmitter inputs.

The MAX3380E is capable of transmitting data at rates of 460kbps while maintaining RS-232 output levels, and the MAX3381E operates at data rates up to 250kbps. The MAX3381E offers a slower slew rate for applications where noise and EMI are issues. The MAX3380E/MAX3381E have a unique VL pin that allows interoperation in mixed-logic voltage systems down to +1.65V. Both input and output logic levels are referenced to the VL pin. The MAX3380E/MAX3381E are available in a space-saving TSSOP package.

Key Features   Applications/Uses
  • ±15kV ESD Protection on All CMOS and RS-232 Inputs and Outputs (Except active-low INVALID)
    • ±15kV Human Body Model
    • ±15kV IEC 1000-4-2 Air-Gap Discharge
    • ±8kV IEC 1000-4-2 Contact Discharge
  • Operates Over Entire Li+ Battery Range
  • Low Logic Threshold Down to +1.65V for Compatibility with Cell Phone Logic Supply Voltages
  • 1µA Low-Power AutoShutdown Plus Mode
  • Compatible with Next-Generation GSM Data Rates
  • 20-Pin TSSOP Package

 
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    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)    		 ESD Protect.
    (±kV)    		 Rx Active in Shutdn Package/Pins Price
    min typ nom See Notes
    MAX3380E 
    2.5
    3
    3.3
    5
    		 2 2 460 0.3 Yes 4 0.1 15 2
    TSSOP/20
    		 $2.78 @1k
    MAX3381E  250
    TSSOP/20
    		 $2.78 @1k
    See All RS-232 Line Driver/Receivers (152)

    Diagram
    MAX3380E, MAX3381E: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 882: RS-232 Features Explained - MAX3380E, MAX3381E
  		• Application Note 2020: Choosing the Right RS-232 Transceiver - MAX3380E, MAX3381E

    Design Guides
  		• Interface (PDF)

    Reliability Reports
  		• Reliability Report: MAX3380E.pdf MAX3381E.pdf
  		• Show FIT data 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: 1-16 of 16

    MAX3380E Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3380ECUP    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3380ECUP-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX3380ECUP+  
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3380ECUP+T    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3380EEUP    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3380EEUP-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX3380EEUP+  
    		Active TSSOP;20 pin;45 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
    MAX3380EEUP+T    
    		Active TSSOP;20 pin;45 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
    MAX3381E Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX3381ECUP    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3381ECUP-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX3381ECUP+  
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3381ECUP+T    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX3381EEUP    
    		Active TSSOP;20 pin;45 mm²
    Outline Drawing: 21-0066 (PDF)
    Land Pattern: 90-0116 (PDF)
    Use pkgcode/variation: U20-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX3381EEUP-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX3381EEUP+  
    		Active TSSOP;20 pin;45 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
    MAX3381EEUP+T    
    		Active TSSOP;20 pin;45 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 2001-09-07 

    Related Products
    MAX3222E, MAX3232E, MAX3237E, MAX3241E, MAX3246E ±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V, Up to 1Mbps, True RS-232 Transceivers
    MAX3224E, MAX3225E, MAX3226E, MAX3227E, MAX3244E, MAX3245E ±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus

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     Description 
     Key Features 
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    Document Ref.: 19-2128; Rev 0; 2001-08-01
    This page last modified: 2007-06-26


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