SCLS130H December   1982  – February 2025 SN54HC244 , SN74HC244

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
    6. 5.6  Electrical Characteristics – SN54HC244
    7. 5.7  Electrical Characteristics – SN74HC244
    8. 5.8  Switching Characteristics
    9. 5.9  Switching Characteristics – CL = 50 pF
    10. 5.10 Switching Characteristics – CL = 150 pF
    11. 5.11 Typical Characteristic
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Standard CMOS Inputs
    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 Guidelines
      1. 8.4.1 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Links
    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
  • PW|20
  • DW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4 Pin Configuration and Functions

SN54HC244 SN74HC244 DB, DW, J, N, NS, PW, W Package20-Pin SSOP, SOIC, CDIP, PDIP, SOP, TSSOP, or CFPTop ViewFigure 4-1 DB, DW, J, N, NS, PW, W Package20-Pin SSOP, SOIC, CDIP, PDIP, SOP, TSSOP, or CFPTop View
SN54HC244 SN74HC244 FK Package20-Pin LCCCTop ViewFigure 4-2 FK Package20-Pin LCCCTop View
PIN I/O(1) DESCRIPTION
NO. NAME
1 1 OE I Output Enable
2 1A1 I Input
3 2Y4 O Output
4 1A2 I Input
5 2Y3 O Output
6 1A3 I Input
7 2Y2 O Output
8 1A4 I Input
9 2Y1 O Output
10 GND — Ground
11 2A1 I Input
12 1Y4 O Output
13 2A2 I Input
14 1Y3 O Output
15 2A3 I Input
16 1Y2 O Output
17 2A4 I Input
18 1Y1 O Output
19 2 OE I Output Enable
20 VCC — Power Pin
(1) Signal Types: I = Input, O = Output, I/O = Input or Output.