SCLS470C March   2003  – June 2022 SN54HC109 , SN74HC109

PRODUCTION DATA  

  1. 1 Features
  2. 2 Description
  3. 3 Revision History
  4. 4 Pin Configuration and Functions
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 Recommended Operating Conditions (1)
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics
    5. 5.5 Timing Requirements
    6. 5.6 Switching Characteristics
    7. 5.7 Operating Characteristics
  6. 6 Parameter Measurement Information
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Device Functional Modes
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • NS|16
  • N|16
  • D|16
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.5 Timing Requirements

over recommended operating free-air temperature range (unless otherwise noted)
VCC TA = 25°C SN54HC109 SN74HC109 UNIT
MIN MAX MIN MAX MIN MAX
fclock Clock frequency 2 V 6 4.2 5 MHz
4.5 V 31 21 25
6 V 36 25 29
tw Pulse duration PRE or CLR low 2 V 100 150 125 ns
4.5 V 20 30 25
6 V 17 25 21
CLK high or low 2 V 80 120 100
4.5 V 16 24 20
6 V 14 20 17
tsu Setup time before CLK­ ↑ Data (J, K) 2 V 100 150 125 ns
4.5 V 20 30 25
6 V 17 25 21
PRE or CLR inactive 2 V 25 40 30
4.5 V 5 8 6
6 V 4 7 5
th Hold time Data after CLK­↑ 2 V 0 0 0 ns
4.5 V 0 0 0
6 V 0 0 0