SCPS225E August   2011  – October 2024 TCA9509

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
    6. 5.6 Timing Requirements
    7. 5.7 I2C Interface Timing Requirements
  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 Two-Channel Bidirectional Buffer
      2. 7.3.2 Integrated A-Side Current Source
      3. 7.3.3 Standard Mode and Fast Mode Support
    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
        1. 8.2.2.1 Clock Stretching Support
        2. 8.2.2.2 VILC and Pulldown Strength Requirements
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device 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
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

Package Options

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

5.7 I2C Interface Timing Requirements

TA = –40°C to 85°C (unless otherwise noted)
PARAMETER VCCA
(INPUT)		 VCCB
(OUTPUT)		 TEST CONDITIONS MIN TYP(1) MAX UNIT
tPHL Propagation delay port A to port B 1.9 V 5 V EN High 123.1 127.2 132.8 ns
port B to port A 88.1 88.8 89.8
tPLH Propagation delay port A to port B 1.9 V 5 V EN High 122.6 125.7 131.7 ns
port B to port A 123 124.1 126.9
trise Transition time port A 1.9 V 5 V EN High 40.1 40.9 41.9 ns
port B 57.3 57.5 58.4
tfall Transition time port A 1.9 V 5 V EN High 14.5 16.4 17.9 ns
port B 18.7 19.4 20.2
tPLH2 Propagation delay 50% of initial low on Port A to 1.5 V on Port B port A to port B 1.9 V 5 V 176 177.3 178 ns
fMAX Maximum switching frequency 400 KHz
(1) Typical values were measured with VCCA = VCCB = 2.7 V at TA = 25°C, unless otherwise noted.
TCA9509 Bus A (0.9-V to 5.5-V Bus) Waveform Figure 5-1 Bus A (0.9-V to 5.5-V Bus) Waveform
TCA9509 Bus B (2.7-V to 5.5-V Bus) Waveform Figure 5-2 Bus B (2.7-V to 5.5-V Bus) Waveform