SBOS721B October   2014  – October 2024 TMP75B-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  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 Timing Requirements
    7. 6.7 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 Temperature Limits and Alert
      3. 7.3.3 Serial Interface
        1. 7.3.3.1  Bus Overview
        2. 7.3.3.2  Serial Bus Address
        3. 7.3.3.3  Writing and Reading Operation
        4. 7.3.3.4  Target-Mode Operations
          1. 7.3.3.4.1 Target Receiver Mode:
          2. 7.3.3.4.2 Target Transmitter Mode:
        5. 7.3.3.5  SMBus Alert Function
        6. 7.3.3.6  General Call
        7. 7.3.3.7  High-Speed (Hs) Mode
        8. 7.3.3.8  Timeout Function
        9. 7.3.3.9  Two-Wire Timing
        10. 7.3.3.10 Two-Wire Timing Diagrams
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous-Conversion Mode
      2. 7.4.2 Shutdown Mode
      3. 7.4.3 One-Shot Mode
    5. 7.5 Programming
  9. 8 Register Map
  10. 9 Application and Implementation
    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 Curve
    3. 9.3 Power-Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

7.3.3.9 Two-Wire Timing

The TMP75B-Q1 is two-wire and SMBus compatible. Figure 7-2 to Figure 7-5 describe the various operations on the TMP75B-Q1. Parameters for Figure 7-2 are defined in Section 6.6. Bus definitions are:

    Bus Idle Both SDA and SCL lines remain high.
    Start Data Transfer A change in the state of the SDA line, from high to low, while the SCL line is high defines a start condition. Each data transfer is initiated with a start condition.
    Stop Data Transfer A change in the state of the SDA line from low to high while the SCL line is high defines a stop condition. Each data transfer is terminated with a repeated start or stop condition.
    Data Transfer The number of data bytes transferred between a start and a stop condition is not limited, and is determined by the controller device.

    The receiver acknowledges the transfer of data. Using the TMP75B-Q1 for single-byte updates is also possible. To update only the MS byte, terminate communication by issuing a start or stop condition on the bus.
    Acknowledge Each receiving device, when addressed, must generate an acknowledge bit.

    A device that acknowledges must pull down the SDA line during the acknowledge clock pulse so that the SDA line is stable low during the high period of the acknowledge clock pulse. Setup and hold times must be taken into account. When a controller receives data, the termination of the data transfer can be signaled by the controller generating a not-acknowledge (1) on the last byte transmitted by the target.