ZHCSOB7 August   2019  – June 2021 CD54HCT14 , CD74HCT14

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Recommended Operating Conditions
    3. 6.3 Thermal Information
    4. 6.4 Electrical Characteristics
    5. 6.5 Switching Characteristics
    6. 6.6 Operating Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Balanced CMOS Push-Pull Outputs
      2. 8.3.2 TTL-Compatible Schmitt-Trigger CMOS Inputs
      3. 8.3.3 Clamp Diode Structure
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Power Considerations
        2. 9.2.1.2 Input Considerations
        3. 9.2.1.3 Output Considerations
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 支持资源
    3. 12.3 Trademarks
    4. 12.4 静电放电警告
    5. 12.5 术语表
  13. 13Mechanical, Packaging, and Orderable Information

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9.2.1.1 Power Considerations

Ensure the desired supply voltage is within the range specified in the GUID-486B45BE-E077-43A4-B8D4-5C8E641D9B3D.html#GUID-486B45BE-E077-43A4-B8D4-5C8E641D9B3D. The supply voltage sets the device's electrical characteristics as described in the GUID-6A28618D-AEF3-499F-AE72-7A1075BFCCE3.html#GUID-6A28618D-AEF3-499F-AE72-7A1075BFCCE3.

The supply must be capable of sourcing current equal to the total current to be sourced by all outputs of the CD74HCT14 plus the maximum supply current, ICC, listed in the GUID-6A28618D-AEF3-499F-AE72-7A1075BFCCE3.html#GUID-6A28618D-AEF3-499F-AE72-7A1075BFCCE3. The logic device can only source or sink as much current as it is provided at the supply and ground pins, respectively. Be sure not to exceed the maximum total current through GND or VCC listed in the GUID-101C031F-AB20-4D0F-8E59-2F4381C6B37F.html#GUID-101C031F-AB20-4D0F-8E59-2F4381C6B37F.

Total power consumption can be calculated using the information provided in CMOS Power Consumption and Cpd Calculation.

Thermal increase can be calculated using the information provided in Thermal Characteristics of Standard Linear and Logic (SLL) Packages and Devices.

CAUTION:

The maximum junction temperature, TJ(max) listed in the GUID-101C031F-AB20-4D0F-8E59-2F4381C6B37F.html#GUID-101C031F-AB20-4D0F-8E59-2F4381C6B37F, is an additional limitation to prevent damage to the device. Do not violate any values listed in the GUID-101C031F-AB20-4D0F-8E59-2F4381C6B37F.html#GUID-101C031F-AB20-4D0F-8E59-2F4381C6B37F. These limits are provided to prevent damage to the device.
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