JAJSNW9G December   1982  – October 2022 SN54HCT74 , SN74HCT74

PRODUCTION DATA  

  1. 1 特長
  2. 2 概要
  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 サポート・リソース
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

パッケージ・オプション

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
  • D|14
  • PW|14
  • DB|14
  • N|14
  • NS|14
サーマルパッド・メカニカル・データ
発注情報

5.5 Timing Requirements

overrecommended operating free-air temperature range (unless otherwise noted)
VCC TA = 25°C SN54HCT74(1) SN74HCT74 UNIT
MIN MAX MIN MAX MIN MAX
fclock Clock frequency 4.5 V 27 18 22 MHz
5.5 V 30 20 24
tw Pulse duration PRE or CLR low 4.5 V 16 24 20 ns
5.5 V 14 21 18
CLK high or low 4.5 V 18 27 23
5.5 V 16 24 21
tsu Setup time before CLK­↑ Data 4.5 V 12 18 15 ns
5.5 V 11 16 14
PRE or CLR inactive 4.5 V 0 0 0
5.5 V 0 0 0
th Hold time, data after CLK­↑ 4.5 V 0 0 0 ns
5.5 V 0 0 0
(1) SN54HCT74 is in product preview.