ZHCSMH6 February   2021 DS160PR421

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 DC Electrical Characteristics
    6. 6.6 High Speed Electrical Characteristics
    7. 6.7 SMBUS/I2C Timing Charateristics
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Linear Equalization
      2. 7.3.2 Flat Gain
      3. 7.3.3 Receiver Detect State Machine
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active PCIe Mode
      2. 7.4.2 Active Buffer Mode
      3. 7.4.3 Standby Mode
    5. 7.5 Programming
      1. 7.5.1 Control and Configuration Interface
        1. 7.5.1.1 Pin Mode
          1. 7.5.1.1.1 Four-Level Control Inputs
        2. 7.5.1.2 SMBUS/I2C Register Control Interface
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 PCIe x8 Lane Switching
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Pin-to-pin Passive versus Redriver Option
        4. 8.2.1.4 Application Curves
      2. 8.2.2 DisplayPort Application
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
  11. 11Layout Example
  12. 12Device and Documentation Support
    1. 12.1 接收文档更新通知
    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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6.7 SMBUS/I2C Timing Charateristics

over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Slave Mode
tSP Pulse width of spikes which must be
suppressed by the input filter		 50 ns
tHD-STA Hold time (repeated) START condition.
After this period, the first clock pulse is
generated		 0.6 µs
tLOW LOW period of the SCL clock 1.3 µs
THIGH HIGH period of the SCL clock 0.6 µs
tSU-STA Set-up time for a repeated START
condition		 0.6 µs
tHD-DAT Data hold time 0 µs
TSU-DAT Data setup time 0.1 µs
tr Rise time of both SDA and SCL signals Pull-up resistor = 4.7 kΩ, Cb = 10pF 120 ns
tf Fall time of both SDA and SCL signals Pull-up resistor = 4.7 kΩ, Cb = 10pF 2 ns
tSU-STO Set-up time for STOP condition 0.6 µs
tBUF Bus free time between a STOP and
START condition		 1.3 µs
tVD-DAT Data valid time 0.9 µs
tVD-ACK Data valid acknowledge time 0.9 µs
Cb capacitive load for each bus line 400 pF
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