ZHCSIB4D October   2003  – May 2025 SN74CB3T3245

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 85C
    7. 5.7 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.3 Feature Description

The SN74CB3T3245 device uses the standard '245-type pinout. The output voltage tracks VCC, allowing for easy down-translation. The device is prime for low-power portable equipment.

Mixed-mode signal operation is supported on all data I/O ports. 5V input down to 3.3V output level shift with 3.3V VCC and 5V/3.3V input down to 2.5V output level shift With 2.5V VCC are possible due to overvoltage tolerant inputs.

This part is friendly to partial power down systems. The I/Os are 5V-tolerant with the device powered up or powered down and Ioff supports partial-power-down mode operation.

The SN74CB3T3245 has a bidirectional data flow with near-zero propagation delay.

The SN74CB3T3245 has low ON-state resistance (ron) characteristics (ron = 5Ω typical).

The SN74CB3T3245 has both low input and output capacitance minimizes loading (Cio(OFF) = 5pF typical).

Data and control inputs provide undershoot clamp diodes.

The SN74CB3T3245 has low power consumption (ICC = 40μA Maximum).

The SN74CB3T3245 has a VCC operating range from 2.3V to 3.6V.

The data I/Os support 0V to 5V signaling levels (0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V).

Control inputs can be driven by TTL or 5V/3.3V CMOS outputs.