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

Package Options

Refer to the PDF data sheet for device specific package drawings

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

7.3.4 Global Read and Write

The host can initiate a global read or write command to all TMP104s in the daisy-chain by sending the read/write command, consisting of P7-P3 = 11110. P2-P1 indicate the data register pointer, as shown in Table 4, and P0 indicates read/write control. P0 = 0 indicates a global write command. The host must transfer one more byte of data for the register (indicated by bits P2-P1), and every TMP104 in the daisy-chain updates the appropriate register. P0 = 1 indicates a global read command. The TMP104 with the device ID of '0000' then breaks the bus connection, transmits the data from the register indicated by bits P2-P1, and then reconnects the bus. The TMP104 with the device ID of '0001' then repeats the same sequence, followed by the rest of the TMP104 devices in the daisy-chain.

Table 4. Pointer Addresses

P0 P0 REGISTER
0 0 Temperature register (read-only)
0 1 Configuration register (read/write)
1 0 TLOW register (read/write)
1 1 THIGH register (read/write)