SCDS143E October   2003  – September 2026 SN74CB3Q3125

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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 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 Curve
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

7.3 Feature Description

The SN74CB3Q3125 device has a high-bandwidth data path (up to 500MHz) and has 5V tolerant I/Os with the device powered up or powered down. It also has low and flat ON-state resistance (ron) characteristics over operating range (ron = 4Ω Typ).

The SN74CB3Q3125 device has rail-to-rail switching on data I/O ports for 0V to 5V switching with
3.3V VCCand 0V to 3.3V switching with 2.5V VCC as well as bidirectional data flow with near-zero propagation delay and low input/output capacitance that minimizes loading and signal distortion (Cio(OFF) = 3.5pF Typ).

The SN74CB3Q3125 device also provides a fast switching frequency (fOE = 20MHz Max) with data and control inputs that provide undershoot clamp diodes as well as low power consumption (ICC = 0.6mA Typ).

The VCC operating range is from 2.3V to 3.6V and the data I/Os support 0V to 5V signal levels of
(0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V).

The control inputs can be driven by TTL or 5V or 3.3V CMOS outputs, and Ioff supports partial-power-down mode operation.