ZHCSQ25E December   1982  – February 2022 SN54HC157 , SN74HC157

PRODUCTION DATA  

  1. 1 特性
  2. 2 说明
  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 Switching Characteristics
    6. 5.6 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 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 术语表
  11. 11Mechanical, Packaging, and Orderable Information

封装选项

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机械数据 (封装 | 引脚)
  • J|16
散热焊盘机械数据 (封装 | 引脚)
订购信息

5.5 Switching Characteristics

over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (See Figure 6)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC (V) TA = 25°C SN54HC157 SN74HC157 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Y 2 63 125 190 160 ns
4.5 13 25 38 32
6 11 21 32 27
A/B Y 2 67 125 190 160 ns
4.5 18 25 38 31
6 14 21 32 27
G Y 2 59 115 170 145 ns
4.5 16 23 34 29
6 13 20 29 25
tt Transition time Y 2 28 60 90 75 ns
4.5 8 12 18 15
6 6 10 15 13
over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (See Figure 6)
PARAMETER FROM (INPUT) TO (OUTPUT) VCC (V) TA = 25°C SN54HC157 SN74HC157 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Y 2 81 190 290 235 ns
4.5 23 38 58 47
6 18 33 49 41
A/B Y 2 81 210 320 260 ns
4.5 23 42 64 52
6 18 36 54 45
G Y 2 91 190 290 235 ns
4.5 24 38 58 47
6 18 33 49 41
tt Transition time Y 2 45 210 315 265 ns
4.5 17 42 63 53
6 13 36 53 45