SCLS068H November   1988  – February 2025 SN74HCT273

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 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Timing Requirements
    6. 5.6 Switching Characteristics, SN54HCT273
    7. 5.7 Switching Characteristics, SN74HCT273
    8. 5.8 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
  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

3 Description

These devices are positive-edge-triggered D-type flip-flops with a common enable input. The ’HCT273 devices are similar to the ’HCT377 devices, but feature a common clear enable (CLR) input instead of a latched clock.

Device Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2) BODY SIZE(3)
SNx4HCT273 DB (SSOP, 20) 7.2mm × 7.8mm 7.2mm × 5.3mm
DW (SOIC, 20) 12.80mm × 10.3mm 12.8mm × 7.5mm
N (PDIP, 20) 24.33mm x 9.4mm 24.33mm × 6.35mm
NS (SOP, 20) 12.6mm × 7.8mm 12.6mm × 5.3mm
PW (TSSOP, 20) 6.5mm × 6.4mm 6.5mm × 4.4mm
(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.
SN74HCT273 Logic Diagram, (positive logic) Logic Diagram, (positive logic)
SN74HCT273 Logic Diagram, Each Flip Flop (positive logic) Logic Diagram, Each Flip Flop (positive logic)