SCPS292 July   2025 TCA9539A-Q1

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 I2C Interface Timing Requirements
    7. 5.7 RESET Timing Requirements
    8. 5.8 Switching Characteristics
    9. 5.9 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 I/O Port
      2. 7.3.2 RESET Input
      3. 7.3.3 Interrupt ( INT) Output
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-On Reset
    5. 7.5 Programming
      1. 7.5.1 I2C Interface
    6. 7.6 Register Map
      1. 7.6.1 Device Address
      2. 7.6.2 Control Register And Command Byte
  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 Calculating Junction Temperature and Power Dissipation
        2. 8.2.2.2 Minimizing ICC When I/Os Control LEDs
      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 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

6 Parameter Measurement Information

TCA9539A-Q1 I2C Interface Load Circuit and Voltage Waveforms
A. CL includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10MHz, ZO = 50Ω, tr/tf ≤ 30ns.
C. All parameters and waveforms are not applicable to all devices.
Figure 6-1 I2C Interface Load Circuit and Voltage Waveforms
TCA9539A-Q1 Interrupt Load Circuit and Voltage Waveforms
A. CL includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10Hz, ZO = 50Ω, tr/tf ≤ 30ns.
C. All parameters and waveforms are not applicable to all devices.
Figure 6-2 Interrupt Load Circuit and Voltage Waveforms
TCA9539A-Q1 P-Port Load Circuit and Voltage Waveforms
A. CL includes probe and jig capacitance.
B. tpv is measured from 0.7 × VCC on SCL to 50% I/O (Pn) output.
C. All inputs are supplied by generators having the following characteristics: PRR ≤ 10MHz, ZO = 50Ω, tr/tf ≤ 30ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. All parameters and waveforms are not applicable to all devices.
Figure 6-3 P-Port Load Circuit and Voltage Waveforms
TCA9539A-Q1 Reset Load Circuits and Voltage Waveforms
A. CL includes probe and jig capacitance.
B. All inputs are supplied by generators having the following characteristics: PRR ≤ 10MHz, ZO = 50Ω, tr/tf ≤ 30ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. I/Os are configured as inputs.
E. All parameters and waveforms are not applicable to all devices.
Figure 6-4 Reset Load Circuits and Voltage Waveforms