SCPS225D August   2011  – April 2021 TCA9509

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 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 I2C Interface Timing Requirements
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Two-Channel Bidirectional Buffer
      2. 9.3.2 Integrated A-Side Current Source
      3. 9.3.3 Standard Mode and Fast Mode Support
    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 Clock Stretching Support
        2. 10.2.2.2 VILC and Pulldown Strength Requirements
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Receiving Notification of Documentation Updates
    2. 13.2 Support Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary

Package Options

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

7.7 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.
GUID-9F8FD52E-F259-47C4-9C02-3B6864ADD799-low.gif Figure 7-1 Bus A (0.9-V to 5.5-V Bus) Waveform
GUID-8D708890-DB5A-430F-8E8B-066D5FBDF2A5-low.gif Figure 7-2 Bus B (2.7-V to 5.5-V Bus) Waveform