ZHCSH87B September   2017  – February 2020 TMP461-SP

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
    1.     简化框图
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 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 Two-Wire Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Temperature Measurement Data
        1. 7.3.1.1 Standard Binary to Decimal Temperature Data Calculation Example
        2. 7.3.1.2 Standard Decimal to Binary Temperature Data Calculation Example
      2. 7.3.2 Series Resistance Cancellation
      3. 7.3.3 Differential Input Capacitance
      4. 7.3.4 Filtering
      5. 7.3.5 Sensor Fault
      6. 7.3.6 ALERT and THERM Functions
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode (SD)
    5. 7.5 Programming
      1. 7.5.1 Serial Interface
        1. 7.5.1.1 Bus Overview
        2. 7.5.1.2 Bus Definitions
        3. 7.5.1.3 Serial Bus Address
        4. 7.5.1.4 Read and Write Operations
        5. 7.5.1.5 Timeout Function
        6. 7.5.1.6 High-Speed Mode
      2. 7.5.2 General-Call Reset
    6. 7.6 Register Map
      1. 7.6.1 Register Information
        1. 7.6.1.1  Pointer Register
        2. 7.6.1.2  Local and Remote Temperature Registers
        3. 7.6.1.3  Status Register
        4. 7.6.1.4  Configuration Register
        5. 7.6.1.5  Conversion Rate Register
        6. 7.6.1.6  One-Shot Start Register
        7. 7.6.1.7  Channel Enable Register
        8. 7.6.1.8  Consecutive ALERT Register
        9. 7.6.1.9  η-Factor Correction Register
        10. 7.6.1.10 Remote Temperature Offset Register
        11. 7.6.1.11 Manufacturer Identification Register
  8. 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
      3. 8.2.3 Application Curve
    3. 8.3 Radiation Environments
      1. 8.3.1 Single Event Latch-Up
      2. 8.3.2 Single Event Functional Interrupt
      3. 8.3.3 Single Event Upset
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 社区资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.6.1.4 Configuration Register

The configuration register sets the temperature range, the ALERT/THERM modes, and controls the shutdown mode. The configuration register is set by writing to pointer address 09h, and is read by reading from pointer address 03h. Table 7 summarizes the bits of the configuration register.

Table 7. Configuration Register Bit Descriptions

CONFIGURATION REGISTER (Read = 03h, Write = 09h, POR = 00h)
BIT NUMBER NAME FUNCTION POWER-ON RESET VALUE
7 MASK1 0 = ALERT enabled
1 = ALERT masked		 0
6 SD 0 = Run
1 = Shut down		 0
5 ALERT/THERM2 0 = ALERT
1 = THERM2 		0
4:3 Reserved — 0
2 RANGE 0 = –40°C to +127°C
1 = –64°C to +191°C		 0
1:0 Reserved — 0

MASK1 (bit 7) of the configuration register masks the ALERT output. If MASK1 is 0 (default), the ALERT output is enabled. If MASK1 is set to 1, the ALERT output is disabled. This configuration applies only if the value of ALERT/THERM2 (bit 5) is 0 (that is, pin 7 is configured as the ALERT output). If pin 7 is configured as the THERM2 output, the value of the MASK1 bit has no effect.

The shutdown bit (SD, bit 6) enables or disables the temperature-measurement circuitry. If SD = 0 (default), the TMP461-SP device converts continuously at the rate set in the conversion rate register. When SD is set to 1, the TMP461-SP device stops converting when the current conversion sequence is complete and enters a shutdown mode. When SD is set to 0 again, the TMP461-SP resumes continuous conversions. When SD = 1, a single conversion can be started by writing to the one-shot start register; see the One-Shot Start Register section for more information.

ALERT/THERM2 (bit 5) sets the configuration of pin 7. If the ALERT/THERM2 bit is 0 (default), then pin 7 is configured as the ALERT output; if this bit is set to 1, then pin 7 is configured as the THERM2 output.

The temperature range is set by configuring RANGE (bit 2) of the configuration register. Setting this bit low (default) configures the TMP461-SP device for the standard measurement range (–40°C to +127°C); temperature conversions are stored in the standard binary format. Setting bit 2 high configures the TMP461-SP device for the extended measurement range (–64°C to +191°C); temperature conversions are stored in the extended binary format (see Table 2).

The remaining bits of the configuration register are reserved and must always be set to 0. The power-on reset value for this register is 00h.