SCAS416Q March   1994  – September 2016 SN74ALVC164245

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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: VCCB at 3.3 V
    4. 6.4  Recommended Operating Conditions: VCCA at 2.5 V
    5. 6.5  Thermal Information
    6. 6.6  Electrical Characteristics: VCCA = 2.7 V to 3.6 V
    7. 6.7  Electrical Characteristics: VCCA = 2.3 V to 2.7 V
    8. 6.8  Switching Characteristics
    9. 6.9  Operating Characteristics
    10. 6.10 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 VCCA = 2.5 V ± 0.2 V to VCCB = 3.3 V ± 0.3 V
    2. 7.2 VCCB = 3.3 V ± 0.3 V to VCCA = 2.5 V ± 0.2 V
    3. 7.3 VCCA = 3.3 V ± 0.3 V to VCCB = 5 V ± 0.5 V
    4. 7.4 VCCB = 5 V ± 0.5 V to VCCA = 2.7 V and 3.3 V ± 0.3 V
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resource
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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10 Power Supply Recommendations

TI level-translation devices offer an opportunity for successful mixed-voltage signal design. A proper power-up sequence must always be followed to avoid excessive supply current, bus contention, oscillations, or other anomalies caused by improperly biased device pins. Take these precautions to guard against such power-up problems:

  1. Connect ground before any supply voltage is applied.
  2. Power up the control side of the device (VCCA for all four of these devices).
  3. Tie OE to VCCA with a pullup resistor so that it ramps with VCCA.
  4. Depending on the direction of the data path, DIR can be high or low. If DIR high is needed (A data to B bus), ramp it with VCCA. Otherwise, keep DIR low.

For more information, see the TI application report, Texas Instruments Voltage-Level-Translation Devices (SCEA021).