SCPS069H July   2001  – September 2024 PCF8574A

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 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
      1. 7.2.1 Simplified Block Diagram of Device
      2. 7.2.2 Simplified Schematic Diagram of Each P-Port Input/Output
    3. 7.3 Feature Description
      1. 7.3.1 I2C Interface
      2. 7.3.2 Interface Definition
      3. 7.3.3 Address Reference
    4. 7.4 Device Functional Modes
  9. 8 Application Information Disclaimer
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Minimizing ICC When I/Os Control LEDs
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power-On Reset Requirements
    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 Glossary
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DGV|20
  • DW|16
  • N|16
  • PW|20
  • RGY|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.6 I2C Interface Timing Requirements

over recommended operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
fscl I2C clock frequency 100 kHz
tsch I2C clock high time 4 μs
tscl I2C clock low time 4.7 μs
tsp I2C spike time   70 ns
tsds I2C serial data setup time 250 ns
tsdh I2C serial data hold time 0 ns
ticr I2C input rise time 1 μs
ticf I2C input fall time 0.3 μs
tocf I2C output fall time (10-pF to 400-pF bus) 300 ns
tbuf I2C bus free time between stop and start 4.7 μs
tsts I2C start or repeated start condition setup 4.7 μs
tsth I2C start or repeated start condition hold 4 μs
tsps I2C stop condition setup 4 μs
tvd Valid data time SCL low to SDA output valid 3.4 μs
Cb I2C bus capacitive load 400 pF