SCLS175I March   2003  – February 2025 SN54HCT244 , SN74HCT244

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 - SN54HCT244
    6. 5.6  Electrical Characteristics - SN74HCT244
    7. 5.7  Switching Characteristics: SN54HCT244
    8. 5.8  Switching Characteristics: SN74HCT244
    9. 5.9  Operating Characteristics
    10. 5.10 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
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 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
  • NS|20
  • N|20
  • DGS|20
  • DW|20
  • PW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.8 Switching Characteristics: SN74HCT244

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 6-1)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 VCC LOAD
CAPACITANCE		 TA = 25°C -55°C to 125°C UNIT
MIN TYP MAX MIN MAX
tpd A Y 4.5 V CL = 50 pF 15 28 42 ns
CL = 150 pF 21 45 68
5.5 V CL = 50 pF 13 25 38
CL = 150 pF 18 40 61
ten OE Y 4.5 V CL = 50 pF 21 35 53 ns
CL = 150 pF 25 52 79
5.5 V CL = 50 pF 19 32 48
CL = 150 pF 22 47 71
tdis OE Y 4.5 V CL = 50 pF 19 35 53 ns
5.5 V CL = 50 pF 18 32 48
tt Y 4.5 V CL = 50 pF 8 12 18 ns
CL = 150 pF 17 42 63
5.5 V CL = 50 pF 7 11 16
CL = 150 pF 14 38 57