SCLS741D November   2013  – May 2024 SN74LV1T32

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Related Products
  6. 5 Pin Configuration and Functions
  7. 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 Switching Characteristics
    7. 6.7 Operating Characteristics
    8. 6.8 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Clamp Diode Structure
      2. 8.3.2 Balanced CMOS Push-Pull Outputs
      3. 8.3.3 LVxT Enhanced Input Voltage
      4. 8.3.4 Down Translation
      5. 8.3.5 Up Translation
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Power Supply Recommendations
    2. 9.2 Layout
      1. 9.2.1 Layout Guidelines
      2. 9.2.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support (Analog)
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.3.4 Down Translation

Signals can be translated down using the SN74LV1T32. The voltage applied at the VCC will determine the output voltage and the input thresholds as described in the Recommended Operating Conditions and Electrical Characteristics tables.

When connected to a high-impedance input, the output voltage will be approximately VCC in the HIGH state, and 0 V in the LOW state. As shown in Figure 8-2, ensure that the input signals in the HIGH state are between VIH(MIN) and 5.5 V, and input signals in the LOW state are lower than VIL(MAX).

As shown in Figure 8-3 for example, the standard CMOS inputs for devices operating at 5.0 V, 3.3 V or 2.5 V can be down-translated to match 1.8 V CMOS signals when operating from 1.8-V VCC.

Down Translation Combinations are as follows:

  • 1.8-V VCC – Inputs from 2.5 V, 3.3 V, and 5.0 V
  • 2.5-V VCC – Inputs from 3.3 V and 5.0 V
  • 3.3-V VCC – Inputs from 5.0 V