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

3 Description

These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

Device Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2) BODY SIZE(3)
SN74AC244 DB (SSOP, 20) 7.2mm × 7.8mm 7.2mm × 5.3mm
DGS (VSSOP, 20) 5.1mm × 4.9mm 5.1mm × 3mm
DW (SOIC, 20) 12.8mm × 10.3mm 12.8mm × 7.5mm
N (PDIP, 20) 24.33mm × 9.4mm 24.33mm × 6.35mm
NS (SOP, 20) 12.6mm × 7.8mm 12.6mm × 5.3mm
PW (TSSOP, 20) 6.5mm × 4.4mm 6.5mm × 4.4mm
RKS (VQFN, 20) 4.5mm × 2.5mm 4.5mm × 2.5mm
SN54AC244 J (CDIP, 20) 24.2mm x 7.62mm 24.2mm × 6.92mm
W (CFP, 20) 13.09mm x 8.13mm 13.09mm × 6.92mm
FK (LCCC, 20) 8.89mm × 8.89mm 8.89mm × 8.89mm
(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
(3) The body size (length × width) is a nominal value and does not include pins.

GUID-844854CC-E9DB-4B4E-893C-42C7DBA615F3-low.png
Logic Diagram (Positive Logic)