SNIS227C May   2021  – June 2022 TMP126-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and 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 SPI Interface Timing
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Descriptions
      1. 8.3.1 Temperature Limits
      2. 8.3.2 Slew Rate Warning
      3. 8.3.3 Cyclic Redundancy Check (CRC)
      4. 8.3.4 NIST Traceability
      5. 8.3.5 Fast Measurement Intervals With No Self-Heating Concerns
    4. 8.4 Device Functional Modes
      1. 8.4.1 Continuous Conversion Mode
      2. 8.4.2 Shutdown Mode
      3. 8.4.3 One-Shot Mode
      4. 8.4.4 Interrupt and Comparator Mode
        1. 8.4.4.1 Interrupt Mode
        2. 8.4.4.2 Comparator Mode
    5. 8.5 Programming
      1. 8.5.1 Temperature Data Format
      2. 8.5.2 Serial Bus Interface
        1. 8.5.2.1 Command Word Structure
          1. 8.5.2.1.1 Don't Care
          2. 8.5.2.1.2 CRC Enable
          3. 8.5.2.1.3 CRC Data Block Length
          4. 8.5.2.1.4 Auto Increment
          5. 8.5.2.1.5 Read/Write
          6. 8.5.2.1.6 Sub-Address
        2. 8.5.2.2 Communication
        3. 8.5.2.3 Write Operations
        4. 8.5.2.4 Read Operations
        5. 8.5.2.5 Cyclic Redundancy Check (CRC)
          1. 8.5.2.5.1 Cyclic Redundancy Check Implementation
    6. 8.6 Register Map
  9. 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
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

8.4.4 Interrupt and Comparator Mode

The ALERT pin of the TMP126-Q1 can be programmed to operate in two different modes. In the interrupt mode the TMP126-Q1 will assert the ALERT pin if the temperature exceeds the limits set by temperature limit registers and the flags are enabled. After the Alert_Status is read and the interrupt bits cleared, the ALERT pin will be de-asserted. In the Comparator mode, the ALERT pin will assert if any enabled status bits of the Alert_Status are set. Changes to the Alert_Enable register will be reflected on the ALERT pin after the completed conversion or device read.