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

5.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC MIN TYP (1) MAX UNIT
VIK Input diode clamp voltage II = –18mA 1.65V to 5.5V –1.2 V
VPORR Power-on reset voltage, VCC rising VI = VCC or GND 1.65V to 5.5V 1.2 1.5 V
VPORF Power-on reset voltage, VCC falling VI = VCC or GND 1.65V to 5.5V 0.75 1 V
VOH P-port high-level output voltage (2) IOH = –8mA 1.65V 1.2 V
2.3V 1.8
3V 2.6
3.6V 3.3
5.5V 4.7
IOH = –10mA 1.65V 1
2.3V 1.7
3V 2.5
3.6V 3.2
5.5V 4.5
IOL SDA VOL = 0.4V 1.65V to 5.5V 3 mA
P port (3) VOL = 0.5V 8
VOL = 0.7V 10
INT VOL = 0.4V 3
II SCL, SDA VI = VCC or GND 1.65V to 5.5V ±1 µA
A0, A1, RESET ±1
IIH P port VI = VCC 1.65V to 5.5V 1
IIL P port VI = GND 1.65V to 5.5V –1
ICC Operating mode VI = VCC or GND, IO = 0,
I/O = inputs, fSCL = 400kHz, no load		 5.5V 22 52
3.6V 10 30
2.7V 5 19
1.95V 4 11
Standby mode IO = 0, I/O = inputs,
fSCL = 0kHz, no load		 VI = VCC 5.5V 1.5 10
3.6V 1.1 5
2.7V 1 4.5
1.95V 0.4 3.5
VI = GND 5.5V 1.5 20
3.6V 1.1 13
2.7V 1 9.5
1.95V 0.4 6.5
Ci SCL VI = VCC or GND 1.65V to 5.5V 3 8 pF
Cio SDA VIO = VCC or GND 1.65V to 5.5V 3 9.5 pF
P port 3.7 9.5
(1) All typical values are at nominal supply voltage (1.8V, 2.5V, 3.3V, or 5.0V, VCC) and TA = 25°C.
(2) Each I/O must be externally limited to the maximum allowed IOL, and each octal (P07–P00 and P17–P10) must be limited to keep at Tj ≤ 135°C. See the Section 5.3 table for more information.
(3) The total current sourced by all I/Os must be limited to keep Tj ≤ 135°C. See the Section 5.3 table for more information.