SBOS891C October   2018  – September 2023 TMP144

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  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 UART 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 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]
  9. 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
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • YBK|4
  • YFF|4
  • YMT|4
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.6.2 Configuration Register (P[1:0] = 01) [reset = 0200h]

The configuration register is used to store bits that control the operational modes of the temperature sensors and read the status of alert flags. Read/write operations are performed LSB first.

Return to Register Map.

Table 7-10 Configuration Register
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
INT_EN CR[1:0] FH FL LC M[1:0] ETM Reserved
R/W-0 R/W-0 R-0 R-0 R/W-0 R/W-10 R/W-0 R-00h
Table 7-11 Configuration Register Field Description
BitFieldTypeResetDescription
15 INT_EN R/W 0 Interrupt enable bit
0 = Interrupt is disabled
1 = Interrupt is enabled
14:13 CR[1:0] R/W 0 Conversion rate select
00 = 0.25 Hz conversion rate (default)
01 = 1 Hz conversion rate
10 = 4 Hz conversion rate
11 = 8 Hz conversion rate
12 FH R 0 Flag high temperature
0 = High temperature limit not crossed
1 = High temperature limit crossed
11 FL R 0 Flag low temperature
0 = Low temperature limit not crossed
1 = Low temperature limit crossed
10 LC R/W 0 Latch control bit
0 = Flag bits are cleared on read
1 = Flag bits are latched
9:8 M[1:0] R/W 10 Conversion mode select
00 = Shutdown mode
01 = One shot conversion mode
1x = Continuous conversion mode
7 ETM R/W 0 Extended temperature mode select
0 = Mode is disabled
1 = Mode is enabled
6:0 Reserved R 0 Reserved