ZHCSJ32C December   2018  – September 2020 SN74AXCH1T45

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Operating Characteristics: TA = 25°C
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Load Circuit and Voltage Waveforms
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Standard CMOS Inputs
      2. 8.3.2 Balanced High-Drive CMOS Push-Pull Outputs
      3. 8.3.3 Partial Power Down (Ioff)
      4. 8.3.4 VCC Isolation
      5. 8.3.5 Over-voltage Tolerant Inputs
      6. 8.3.6 Negative Clamping Diodes
      7. 8.3.7 Fully Configurable Dual-Rail Design
      8. 8.3.8 Supports High-Speed Translation
      9. 8.3.9 Bus-Hold Data Inputs
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Enable Times
    2. 9.2 Typical Applications
      1. 9.2.1 Interrupt Request Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Universal Asynchronous Receiver-Transmitter (UART) Interface Application
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
  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
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 静电放电警告
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

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6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)(1) (2) (3)
MINMAXUNIT
VCCASupply voltage A0.653.6V
VCCBSupply voltage B0.653.6V
VIHHigh-level input voltageData InputsVCCI = 0.65 V - 0.75 VVCCI x 0.70V
VCCI = 0.76 V - 1 VVCCI x 0.70
VCCI = 1.1 V - 1.95 VVCCI x 0.65
VCCI = 2.3 V - 2.7 V1.6
VCCI = 3 V - 3.6 V2
Control Input (DIR)
Referenced to VCCA		VCCA = 0.65 V - 0.75 VVCCA x 0.70
VCCA = 0.76 V - 1 VVCCA x 0.70
VCCA = 1.1 V - 1.95 VVCCA x 0.65
VCCA = 2.3 V - 2.7 V1.6
VCCA = 3 V - 3.6 V2
VILLow-level input voltageData InputsVCCI = 0.65 V - 0.75 VVCCI x 0.30V
VCCI = 0.76 V - 1 VVCCI x 0.30
VCCI = 1.1 V - 1.95 VVCCI x 0.35
VCCI = 2.3 V - 2.7 V0.7
VCCI = 3 V - 3.6 V0.8
Control Input (DIR)
Referenced to VCCA		VCCA = 0.65 V - 0.75 VVCCA x 0.30
VCCA = 0.76 V - 1 VVCCA x 0.30
VCCA = 1.1 V - 1.95 VVCCA x 0.35
VCCA = 2.3 V - 2.7 V0.7
VCCA = 3 V - 3.6 V0.8
VIInput voltage (3)03.6V
VOOutput voltageActive State0VCCOV
Tri-State03.6
Δt/ΔvInput transition rate100ns/V
TAOperating free-air temperature–40125°C
(1) VCCI is the VCC associated with the input port.
(2) VCCO is the VCC associated with the output port.
(3) All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs.