JAJSHO4D January   2014  – November 2019 TCA9545A

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      アプリケーション概略図
  4. 4 改訂履歴
  5. 5 概要 (続き)
  6. 6 Pin Configuration and Functions
    1.     Pin 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 I2C Interface Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Interrupt and Reset Timing Requirements
    9. 7.9 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
      1. 9.4.1 RESET Input
      2. 9.4.2 Power-On Reset
    5. 9.5 Programming
      1. 9.5.1 I2C Interface
    6. 9.6 Control Register
      1. 9.6.1 Device Address
      2. 9.6.2 Control Register Description
      3. 9.6.3 Control Register Definition
      4. 9.6.4 Interrupt Handling
  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
      3. 10.2.3 TCA9545A Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Power-On Reset Requirements
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13デバイスおよびドキュメントのサポート
    1. 13.1 ドキュメントの更新通知を受け取る方法
    2. 13.2 サポート・リソース
    3. 13.3 商標
    4. 13.4 静電気放電に関する注意事項
    5. 13.5 Glossary
  14. 14メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9.4.2 Power-On Reset

When power is applied to VCC, an internal power-on reset holds the TCA9545A in a reset condition until VCC has reached VPORR. At this point, the reset condition is released and the TCA9545A registers and I2C state machine are initialized to their default states, all zeroes, causing all the channels to be deselected. Thereafter, VCC must be lowered below at least VPORF to reset the device.