SLLS657E April   2005  – October 2022 MAX3243E

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  ESD Ratings - IEC Specifications
    4. 7.4  Recommended Operating Conditions
    5. 7.5  Thermal Information
    6. 7.6  Electrical Characteristics
    7. 7.7  Driver Electrical Characteristics
    8. 7.8  Receiver, Electrical Characteristics
    9. 7.9  Auto-Powerdown Electrical Characteristics
    10. 7.10 Driver Switching Characteristics
    11. 7.11 Receiver Switching Characteristics
    12. 7.12 Auto-Powerdown Switching Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 ESD Protection
          1. 10.2.2.1.1 ESD Test Conditions
          2. 10.2.2.1.2 Human Body Model (HBM)
          3. 10.2.2.1.3 IEC61000-4-2 (Formerly Known as IEC1000-4-2)
          4. 10.2.2.1.4 Machine Model
    3. 10.3 Power Supply Recommendations
    4. 10.4 Layout
      1. 10.4.1 Layout Example
        1.       Device and Documentation Support
          1. 11.1 Receiving Notification of Documentation Updates
          2. 11.2 Support Resources
          3. 11.3 Trademarks
          4. 11.4 Electrostatic Discharge Caution
          5. 11.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

3 Description

The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge) protection on serial-port connection pins. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. This combination of drivers and receivers matches that needed for the typical serial port used in an IBM PC/AT, or compatible. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, the device includes an always-active noninverting output (ROUT2B), which allows applications using the ring indicator to transmit data while the device is powered down.

Package Information
PART NUMBERPACKAGE(1)BODY SIZE (NOM)
MAX3243ESSOP (DB) (28)10,20 mm × 5,30 mm
SOIC (DW) (28)17,90 mm × 7,50 mm
TSSOP (PW) (28)9,70 mm × 4,40 mm
VQFN (RHB) (32)5,00 mm × 5,00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Simplified Circuit