ZHCSR28A September   2010  – October 2022 SN74LVC2T45-Q1

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  Switching Characteristics: VCCA = 1.8 V ± 0.15 V
    7. 6.7  Switching Characteristics: VCCA = 2.5 V ± 0.2 V
    8. 6.8  Switching Characteristics: VCCA = 3.3 V ± 0.3 V
    9. 6.9  Switching Characteristics: VCCA = 5 V ± 0.5 V
    10. 6.10 Operating Characteristics
    11. 6.11 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 Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
      2. 8.3.2 Support High-Speed Translation
      3. 8.3.3 Ioff Supports Partial-Power-Down Mode Operation
      4. 8.3.4 Balanced High-Drive CMOS Push-Pull Outputs
      5. 8.3.5 Vcc Isolation
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Unidirectional Logic Level-Shifting 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 Bidirectional Logic Level-Shifting Application
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Enable Times
        3. 9.2.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 Power-Up Considerations
  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 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

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6.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)12
PARAMETERTEST CONDITIONSVCCAVCCBTA = 25°C–40°C to +85°CUNIT
MINTYPMAXMINMAX
VOHIOH = –100 μAVI = VIH1.65 V to 4.5 V1.65 V to 4.5 VVCCO – 0.1V
IOH = –4 mA1.65 V1.65 V1.2
IOH = –8 mA2.3 V2.3 V1.9
IOH = –24 mA3 V3 V2.4
IOH = –32 mA4.5 V4.5 V3.8
VOLIOL = 100 μAVI = VIL1.65 V to 4.5 V1.65 V to 4.5 V0.1V
IOL = 4 mA1.65 V1.65 V0.45
IOL = 8 mA2.3 V2.3 V0.3
IOL = 24 mA3 V3 V0.55
IOL = 32 mA4.5 V4.5 V0.55
IIDIRVI = VCCA or GND1.65 V to 5.5 V1.65 V to 5.5 V±1±2µA
IoffA portVI or VO = 0 to 5.5 V0 V0 to 5.5 V±1±9µA
B port0 to 5.5 V0 V±1±9
IOZA or B portVO = VCCO or GND1.65 V to 5.5 V1.65 V to 5.5 V±1±9µA
ICCAVI = VCCI or GND,IO = 01.65 V to 5.5 V1.65 V to 5.5 V

4

µA
5 V0 V2
0 V5 V–12
ICCBVI = VCCI or GND,IO = 01.65 V to 5.5 V1.65 V to 5.5 V

4

µA
5 V0 V–12
0 V5 V2
ICCA + ICCB
(see Table 10-1)		VI = VCCI or GND,IO = 01.65 V to 5.5 V1.65 V to 5.5 V4µA
ΔICCAA portOne A port at VCCA – 0.6 V,
DIR at VCCA,
B port = open		3 V to 5.5 V3 V to 5.5 V50µA
DIRDIR at VCCA – 0.6 V,
B port = open,
A port at VCCA or GND		50
ΔICCBB portOne B port at VCCB – 0.6 V,
DIR at GND, A port = open		3 V to 5.5 V3 V to 5.5 V50µA
CIDIRVI = VCCA or GND3.3 V3.3 V2.5pF
CioA or B portVO = VCCA/B or GND3.3 V3.3 V6pF
(1) VCCO is the VCC associated with the output port.
(2) VCCI is the VCC associated with the input port.