JAJSPB7 February   2024 TMP110

ADVANCE INFORMATION  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Related Products
  6. 5 Pin Configuration and Functions
  7. 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
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Digital Temperature Output
      2. 7.3.2 Decoding Temperature Data
      3. 7.3.3 Temperature Limits and Alert
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous-Conversion Mode
      2. 7.4.2 One-Shot Mode
    5. 7.5 Programming
      1. 7.5.1 Serial Interface
      2. 7.5.2 Bus Overview
      3. 7.5.3 Device Address
      4. 7.5.4 Bus Transactions
        1. 7.5.4.1 Writes
        2. 7.5.4.2 Reads
        3. 7.5.4.3 General Call Reset Function
        4. 7.5.4.4 SMBus Alert Response
        5. 7.5.4.5 Time-Out Function
        6. 7.5.4.6 Coexist on I3C Mixed Bus
  9. 8 Register Map
    1. 8.1 Temp_Result Register (address = 00h) [reset = xxxxh]
    2. 8.2 Configuration Register (address = 01h) [reset = 60A0h]
    3. 8.3 TLow_Limit Register (address = 02h) [reset = 4B00h]
    4. 8.4 THigh_Limit Register (address = 03h) [reset = 5000h]
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Separate I2C Pullup and Supply Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
    3. 9.3 Equal I2C Pullup and Supply Application
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 ドキュメントの更新通知を受け取る方法
    3. 10.3 サポート・リソース
    4. 10.4 Trademarks
    5. 10.5 静電気放電に関する注意事項
    6. 10.6 用語集
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

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

7.5.2 Bus Overview

The physical I2C interface consists of the serial clock (SCL) and serial data (SDA) lines. The SDA line must be connected to a supply through a pullup resistor. The size of the pullup resistor is determined by the amount of capacitance on the I2C lines, the communication frequency and I2C bus voltage. For further details, see the I2C Pullup Resistor Calculation application note. Data transfer can be initiated only when the bus is idle. A bus is considered idle if both SDA and SCL lines are high after a STOP condition or time out events (see Definition of Start and Stop Conditions and Figure 7-8).

The following is the general procedure for a controller to access a target device:

  1. If a controller wants to send data to a target:
    • Controller-transmitter sends a START condition and addresses the target-receiver.
    • Controller-transmitter sends the requested register to write target-receiver.
    • Controller-transmitter sends data to target-receiver.
    • Controller-transmitter terminates the transfer with a STOP condition.
  2. If a controller wants to receive or read data from a target:
    • Controller-receiver sends a START condition and addresses the target-transmitter
    • Controller-receiver sends the requested register to read to target-transmitter.
    • Controller-receiver receives data from the target-transmitter
    • Controller-receiver terminates the transfer with a STOP condition.
GUID-20200606-SS0I-PSHR-LTR6-GVPCZNW9PT9W-low.gif Figure 7-7 Definition of Start and Stop Conditions
GUID-20200606-SS0I-VK4C-HMNC-3T6ZLC5LM716-low.gif Figure 7-8 Bit Transfer