SLLS850D January   2008  – March 2017 TRS3253E

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics—Power
    6. 6.6  Electrical Characteristics—Driver
    7. 6.7  Electrical Characteristics—Receiver
    8. 6.8  Electrical Characteristics—Status
    9. 6.9  Switching Characteristics—Driver
    10. 6.10 Switching Characteristics—Receiver
    11. 6.11 Switching Characteristics—Power and Status
    12. 6.12 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Power
      2. 8.3.2 RS232 Driver
      3. 8.3.3 RS232 Receiver
      4. 8.3.4 RS232 Status
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • VL Pin for Compatibility With Mixed-Voltage Systems Down to 1.8 V on Logic Side
  • Enhanced ESD Protection on RIN Inputs and DOUT Outputs
    • ±15-kV IEC 61000-4-2 Air-Gap Discharge
    • ±8-kV IEC 61000-4-2 Contact Discharge
    • ±15-kV Human Body Model
  • Low 300-μA Supply Current
  • Specified 1000-kbps Data Rate
  • Auto Powerdown Plus Feature

2 Applications

  • Hand-Held Equipment
  • Cell Phones
  • Battery-Powered Equipment
  • Data Cables
  • POS Equipment
  • HDMI Switch Matrix
  • Debug Ports

3 Description

The TRS3253E device is a three-driver and five-receiver RS-232 interface device, with split supply pins for mixed-signal operations without needing an external voltage translator. All RS-232 inputs and outputs are protected to ±15 kV using the IEC 61000-4-2 Air-Gap Discharge method, ±8 kV using the IEC 61000-4-2 Contact Discharge method, and ±15 kV using the Human Body Model.

The charge pump requires only four capacitors for operation from a single 3.3-V or 5-V supply. The TRS3253E is capable of running at data rates up to 1000 kbps, while maintaining RS-232 compliant output levels.

The TRS3253E is available in a space-saving VQFN package (4-mm × 4-mm RSM).

Auto-powerdown-plus automatically powers down drivers to reduce power after 30 seconds of inactivity. In powerdown state supply current is 10 μA maximum.

Receiver input voltage status is available on INVALID logic output even when the device is in powerdown state.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TRS3253ERSM VQFN (32) 2.80 mm × 2.80 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Diagram

TRS3253E trs3253e_mini2.gif