SCPS146G October   2005  – March 2021 PCA9544A

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Interface Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Interrupt Timing Requirements
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power-On Reset
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
    6. 8.6 Register Map
      1. 8.6.1 Control Register
        1. 8.6.1.1 Device Address
        2. 8.6.1.2 Control Register Description
        3. 8.6.1.3 Control Register Definition
        4. 8.6.1.4 Interrupt Handling
  9. 9 Application Information Disclaimer
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power-On Reset Requirements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

5 Pin Configuration and Functions

GUID-BD3820E3-8DA1-4C9E-90BD-BCC9DAAF8EF7-low.svgFigure 5-1 DGV, DW, or PW Package, TVSOP, SOIC, TSSOP (20 Pins), Top View
GUID-408FA258-281B-455E-99FA-B2F034C84A68-low.svgFigure 5-2 RGY Package, VQFN (20 Pins), Top View
Table 5-1 Pin Functions
PIN FUNCTION
NO. NAME
1 A0 Address input 0. Connect directly to VCC or ground.
2 A1 Address input 1. Connect directly to VCC or ground.
3 A2 Address input 2. Connect directly to VCC or ground.
4 INT0 Active-low interrupt input 0. Connect to VDPU0(1) through a pull-up resistor.
5 SD0 Serial data 0. Connect to VDPU0(1) through a pull-up resistor.
6 SC0 Serial clock 0. Connect to VDPU0(1) through a pull-up resistor.
7 INT1 Active-low interrupt input 1. Connect to VDPU1(1) through a pull-up resistor.
8 SD1 Serial data 1. Connect to VDPU1(1) through a pull-up resistor.
9 SC1 Serial clock 1. Connect to VDPU1(1) through a pull-up resistor.
10 GND Ground
11 INT2 Active-low interrupt input 2. Connect to VDPU2(1) through a pull-up resistor.
12 SD2 Serial data 2. Connect to VDPU2(1) through a pull-up resistor.
13 SC2 Serial clock 2. Connect to VDPU2(1) through a pull-up resistor.
14 INT3 Active-low interrupt input 3. Connect to VDPU3(1) through a pull-up resistor.
15 SD3 Serial data 3. Connect to VDPU3(1) through a pull-up resistor.
16 SC3 Serial clock 3. Connect to VDPU3(1) through a pull-up resistor.
17 INT Active-low interrupt output. Connect to VDPUM(1) through a pull-up resistor.
18 SCL Serial clock line. Connect to VDPUM(1) through a pull-up resistor.
19 SDA Serial data line. Connect to VDPUM(1) through a pull-up resistor.
20 VCC Supply power
(1) VDPUX is the pull-up reference voltage for the associated data line. VDPUM is the master I2C reference voltage while VDPU0-VDPU3 are the slave channel reference voltages.