SCDS135E September   2003  – December 2024 SN74CB3Q3257

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Pin Configuration and Functions
  6. 5Specifications
    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, VCC = 2.5V
    7. 5.7 Switching Characteristics, VCC = 3.3V
    8. 5.8 Typical Characteristics
  7.   Parameter Measurement Information
  8. 6Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
  9.   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
      3. 7.2.3 Application Curve
    3.     Power Supply Recommendations
    4. 7.3 Layout
      1. 7.3.1 Layout Guidelines
      2. 7.3.2 Layout Example
  10. 7Device and Documentation Support
    1. 7.1 Documentation Support
      1. 7.1.1 Related Documentation
    2. 7.2 Receiving Notification of Documentation Updates
    3. 7.3 Support Resources
    4. 7.4 Trademarks
    5. 7.5 Electrostatic Discharge Caution
    6. 7.6 Glossary
  11. 8Revision History
  12. 9Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • PW|16
  • DBQ|16
  • RGY|16
  • DGV|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3 Feature Description

The SN74CB3Q3257 device has a high-bandwidth data path (up to 500 MHz) 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 Typical).

This device also has rail-to-rail switching on data I/O ports for 0- to 5V switching with 3.3-V VCC and 0- 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 Typical).

The SN74CB3Q3257 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 Typical).

The VCC operating range is from 2.3V to 3.6V and the data I/Os support 0 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 / 3.3V CMOS outputs as well as Ioff Supports Partial-Power-Down Mode Operation.