SBOS891B October   2018  – April 2021 TMP144

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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 UART Interface Timing
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Power Up
      2. 7.3.2 Digital Temperature Output
      3. 7.3.3 Timeout Function
    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
      4. 7.4.4 Extended Temperature Mode
      5. 7.4.5 Temperature Alert Function
      6. 7.4.6 Interrupt Functionality
    5. 7.5 SMAART Wire / UART Interface
      1. 7.5.1 Communication Protocol
      2. 7.5.2 Global Software Reset
      3. 7.5.3 Global Initialization and Address Assignment Sequence
      4. 7.5.4 Global Clear Interrupt
      5. 7.5.5 Global Read and Write
      6. 7.5.6 Individual Read and Write
    6. 7.6 Register Maps
      1. 7.6.1 Temperature Result Register (P[1:0] = 00) [reset = 0000h]
      2. 7.6.2 Configuration Register (P[1:0] = 01) [reset = 0200h]
      3. 7.6.3 Temperature Low Limit Register (P[1:0] = 10) [reset = F600h]
      4. 7.6.4 Temperature High Limit Register (P[1:0] = 11) [reset = 3C00h]
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Trace Length
        2. 8.2.2.2 Voltage Drop Effect
        3. 8.2.2.3 Power Supply Noise Filtering
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Temperature Result Register (P[1:0] = 00) [reset = 0000h]

The temperature result register stores the results of the conversion in 12-bit or 13-bit format, depending on the state of the ETM bit in the configuration register. Negative numbers are represented in two's complement format. Following power-up or reset the temperature result register reads 0 °C, until the first conversion is complete.

When the ETM bit is configured as '0', the temperature result register of the device is configured as 12-bit value with the least significant bit always reading '0'. One LSB for the temperature result equals 0.0625 °C.

Table 7-6 Temperature Result Register (ETM = 0)
1514131211109876543210
T[11:0]EMReserved
R-000hR-0R-0h
Table 7-7 Temperature Result Register (ETM = 0) Field Description
BitFieldTypeResetDescription
15:4T[11:0]R000h12-bit temperature result after last conversion
3EM R0Extended mode bit
2:0ReservedR0hReserved

When the ETM bit is configured as '1', the temperature result register of the device is configured as 13-bit value. One LSB for the temperature result equals 0.0625 °C.

Table 7-8 Temperature Result Register (ETM = 1)
1514131211109876543210
T[12:0]Reserved
R-0000hR-0h
Table 7-9 Temperature Result Register (ETM = 1) Field Description
BitFieldTypeResetDescription
15:13T[12:0]R0000h13-bit temperature result after last conversion
2:0ReservedR0hReserved