SLLS350Q April   1999  – August 2024 MAX3243

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics –– Auto Power Down
    6. 5.6  Electrical Characteristics –– Driver
    7. 5.7  Electrical Characteristics –– Receiver
    8. 5.8  Switching Characteristics –– Auto Power Down
    9. 5.9  Switching Characteristics –– Driver
    10. 5.10 Switching Characteristics –– Receiver
    11. 5.11 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Auto-Power-Down
      2. 7.3.2 Charge Pump
      3. 7.3.3 RS232 Driver
      4. 7.3.4 RS232 Receiver
      5. 7.3.5 ROUT2B Receiver
      6. 7.3.6 Invalid Input Detection
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Operates with 3V to 5.5V VCC supply
  • Single-chip and single-supply interface
    for IBM™ PC/AT™ serial port
  • RS-232 Bus-pin ESD protection of
    ±15kV Using Human-Body Model (HBM)
  • Meets or exceeds the requirements of
    TIA/EIA-232-F and ITU V.28 standards
  • Three drivers and five receivers
  • Operates up to 250kbit/s
  • Low active current: 300μA typical
  • Low standby current: 1μA typical
  • External capacitors: 4 × 0.1μF
  • Accepts 5V logic input with 3.3V supply
  • Always-active noninverting receiver
    output (ROUT2B)
  • Operating temperature
    • MAX3243C: 0°C to 70°C
    • MAX3243I: –40°C to 85°C
  • Serial-mouse driveability
  • Auto-powerdown feature to disable driver
    outputs when no valid RS-232 signal is
    sensed