ZHCSKD1C October   2019  – January 2021 TCA9511A

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 Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 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 Hot bus insertion
      2. 8.3.2 Pre-charge voltage
      3. 8.3.3 Rise time accelerators
      4. 8.3.4 Bus ready output indicator
      5. 8.3.5 Powered-off high impedance for I2C and I/O pins
      6. 8.3.6 Supports clock stretching and arbitration
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-up and precharge
      2. 8.4.2 Bus idle
      3. 8.4.3 Bus active
  9. 9 Application Information Disclaimer
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Series connections
        2. 9.2.1.2 Multiple connections to a common node
        3. 9.2.1.3 Propagation delays
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 Typical Application on a Backplane
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Best Practices
    2. 10.2 Power-on Reset Requirements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    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

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.7 Switching Characteristics

Over operating free-air temperature range (unless otherwise noted). Typical specifications are at TA = 25 °C, VCC = 3.3 V, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
START-UP CIRCUITRY
tPRECHARGE Time from VCC to precharge enabled SDA,SCL = Hi-Z
EN = VCC, GND		 15 60 µs
tEN Time from VPOR to digital being ready VCC transition from 0V to VCC
Time from VPORR to earliest stop bit recongized		 35 95 µs
tIDLE Bus idle time to READY active SDA,SCL = 10 kΩ to VCC
EN = VCC
Measured at 0.5 × VCC 		95 150 µs
tDISABLE Time from EN high to low to READY low SDA,SCL = 10 kΩ to VCC
READY = 10 kΩ to VCC
Measured at 0.5 × VCC 		30 200 ns
tSTOP SDAIN to READY delay after stop condition SDA,SCL = 10 kΩ to VCC
READY = 10 kΩ to VCC
Measured at 0.5 × VCC 		1.2 2 µs
tREADY SCLOUT/SDAOUT to READY SDA,SCL = 10 kΩ to VCC
READY = 10 kΩ to VCC
Measured at 0.5 × VCC 		0.8 1.5 µs
INPUT-OUTPUT CONNECTION
tPLZ Low to high propagation delay RPU for SDA/SCL = 10 kΩ
CL = 100 pF per pin
Measured at 0.5 × VCC		 0 10 ns
tPZL High to low propagation delay RPU for SDA/SCL = 10 kΩ
CL = 100 pF per pin
Measured at 0.5 × VCC		 70 150 ns
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