ZHCSRE3N November   1996  – December 2022 SN74LVCC4245A

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
    7. 6.7 Operating Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Power-Up Consideration
  8. 8 Parameter Measurement Information For A to B VCCA = 4.5 V to 5.5 V and VCCB = 2.7 V to 3.6 V
  9. 9 Parameter Measurement Information For A to B VCCA = 4.5 V to 5.5 V and VCCB = 3.6 V to 5.5 V
  10. 10Parameter Measurement Information For B to A VCCA = 4.5 V to 5.5 V and VCCB = 2.7 V to 3.6 V
  11. 11Parameter Measurement Information For B to A VCCA = 4.5 V to 5.5 V and VCCB = 3.6 V to 5.5 V
  12. 12Detailed Description
    1. 12.1 Overview
    2. 12.2 Functional Block Diagram
    3. 12.3 Feature Description
    4. 12.4 Device Functional Modes
  13. 13Application and Implementation
    1. 13.1 Application Information
    2. 13.2 Typical Application
      1. 13.2.1 Design Requirements
      2. 13.2.2 Detailed Design Procedure
      3. 13.2.3 Application Curves
  14. 14Power Supply Recommendations
  15. 15Layout
    1. 15.1 Layout Guidelines
    2. 15.2 Layout Example
  16. 16Device and Documentation Support
    1. 16.1 Documentation Support
      1. 16.1.1 Related Documentation
    2. 16.2 接收文档更新通知
    3. 16.3 支持资源
    4. 16.4 Trademarks
    5. 16.5 Electrostatic Discharge Caution
    6. 16.6 术语表
  17. 17Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • NS|24
  • DW|24
  • DB|24
  • PW|24
散热焊盘机械数据 (封装 | 引脚)
订购信息

7 Power-Up Consideration

TI level-translation devices offer an opportunity for successful mixed-voltage signal design. A proper power-up sequence always should be followed to avoid excessive supply current, bus contention, oscillations, or other anomalies caused by improperly biased device pins. Take these precautions to guard against such power-up problems:

  1. Connect ground before any supply voltage is applied.
  2. Power up the control side of the device (VCCA for all four of these devices).
  3. Tie OE to VCCA with a pull up resistor so that it ramps with VCCA.
  4. Depending on the direction of the data path, DIR can be high or low. If DIR high is needed (A data to B bus), then ramp it with VCCA. Otherwise, keep DIR low.

For more information, refer to the Voltage-Level-Translation Devices application note.