SCAS514H June   1995  – March 2024 SN54AC244 , SN74AC244

PRODMIX  

  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 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Switching Characteristics, VCC = 3.3 V ± 0.3 V
    6. 5.6 Switching Characteristics, VCC = 5 V ± 0.5 V
    7. 5.7 Operating Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Power Supply Recommendations
    2. 8.2 Layout
      1. 8.2.1 Layout Guidelines
        1. 8.2.1.1 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DB|20
  • RKS|20
  • NS|20
  • N|20
  • DGS|20
  • DW|20
  • PW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.5 Switching Characteristics, VCC = 3.3 V ± 0.3 V

over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 6-1)
PARAMETER FROM (INPUT) TO (OUTPUT) TA = 25°C SN54AC244 SN74AC244 UNIT
MIN TYP MAX MIN MAX MIN MAX
tPLH A Y 2 6.5 9 1 12.5 1.5 10 ns
tPHL 2 6.5 9 1 12 2 10
tPZH OE Y 2 6 10.5 1 11.5 1.5 11 ns
tPZL 2.5 7.5 10 1 13 2 11
tPHZ OE Y 3 7 10 1 12.5 1.5 10.5 ns
tPLZ 2.5 7.5 10.5 1 13 2.5 11.5