ZHCSUM5 February   2024 TUSB211A-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Timing Requirements
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 High-Speed EQ
    4. 6.4 Device Functional Modes
      1. 6.4.1 Low-Speed (LS) Mode
      2. 6.4.2 Full-Speed (FS) Mode
      3. 6.4.3 High-Speed (HS) Mode
      4. 6.4.4 High-Speed Downstream Port Electrical Compliance Test Mode
      5. 6.4.5 Shutdown Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Test Procedure to Construct USB High-Speed Eye Diagram
          1. 7.2.2.1.1 For a Host Side Application
          2. 7.2.2.1.2 For a Device Side Application
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, 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)
  • RWB|12
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.3 Power Supply Recommendations

On power up, the interaction of the RSTN pin and power on ramp could result in digital circuits not being set correctly. The device should not be enabled until the power on ramp has settled to the minimum recommended supply voltage or higher for a correct power on reset of the digital circuitry. If RSTN cannot be held low by the microcontroller or other circuitry until the power on ramp has settled, then an external capacitor from the RSTN pin to GND is required to hold the device in the low power reset state.

The RC time constant should be larger than five times of the power on ramp time (0 to VCC). With a typical internal pullup resistance of 500kΩ, the recommended minimum external capacitance is calculated as:

Equation 1. Ramp Time × 5 ÷ 500 kΩ 
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