SBOS564B November   2011  – December 2018 TMP104

PRODUCTION DATA.  

  1. 1Features
  2. 2Applications
  3. 3Description
    1.     Device Images
      1.      Typical Application
  4. 4Revision History
  5. 5Pin Configuration and Functions
    1.     Pin Functions
  6. 6Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Thermal Information
    4. 6.4 Electrical Characteristics
    5. 6.5 Typical Characteristics
  7. 7Detailed Description
    1. 7.1 Overview
    2. 7.2 Feature Description
      1. 7.2.1 Timeout Function
      2. 7.2.2 Noise
      3. 7.2.3 SMAART Wire™ Interface Timing Specifications
    3. 7.3 Programming
      1. 7.3.1 Communication Protocol
      2. 7.3.2 Command Register
      3. 7.3.3 Global Initialization and Address Assignment Sequence
      4. 7.3.4 Global Read and Write
      5. 7.3.5 Global Clear Interrupt
      6. 7.3.6 Global Software Reset
      7. 7.3.7 Individual Read and Write
    4. 7.4 Register Maps
      1. 7.4.1 Temperature Register
      2. 7.4.2 Configuration Register
        1. 7.4.2.1 Temperature Watchdog Function (FH, FL)
        2. 7.4.2.2 Conversion Rate (CR1, CR0)
        3. 7.4.2.3 Conversion Modes
          1. 7.4.2.3.1 Shutdown Mode (M1 = 0, M0 = 0)
          2. 7.4.2.3.2 One-Shot Mode (M1 = 0, M0 = 1)
          3. 7.4.2.3.3 Continuous Conversion Mode (M1 = 1)
        4. 7.4.2.4 Interrupt Functionality (INT_EN)
      3. 7.4.3 Temperature Limit Registers
  8. 8Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Community Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  9. 9Mechanical, Packaging, and Orderable Information

7.4.3 Temperature Limit Registers

The THIGH and TLOW registers are used to store the temperature limit thresholds for the TMP104 watchdog function. At the end of each temperature measurement, the TMP104 compares the temperature results to each of these limits. If the temperature result is greater than the THIGH limit, then the FH bit in the Configuration Register is set to '1'. If the temperature result is less than the TLOW limit, then the FL bit in the Configuration Register is set to '1'; see Figure 13.

Table 9 and Table 10 describe the format for the THIGH and TLOW registers. Power-up reset values for THIGH and TLOW are: THIGH = +60°C and TLOW = –10°C. The format of the data for THIGH and TLOW is the same as for the Temperature Register.

Table 9. THIGH Register

D7 D6 D5 D4 D3 D2 D1 D0
H7 H6 H5 H4 H3 H2 H1 H0

Table 10. TLOW Register

D7 D6 D5 D4 D3 D2 D1 D0
L7 L6 L5 L4 L3 L2 L1 L0