ZHCSQA7C December   1982  – March 2022 SN54HC257 , SN74HC258

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

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • PW|16
  • NS|16
  • N|16
  • D|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 SN54HC257 SN74HC257 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 50 100 150 125 ns
4.5 10 20 30 25
6 9 17 25 21
A/B Any Y 2 50 100 150 125
4.5 10 20 30 25
6 9 17 25 21
ten Enable time G Any Y 2 75 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tdis Diable time G Any Y 2 75 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tt Transition time Any 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 SN54HCT257 SN74HC257 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 75 150 245 190 ns
4.5 15 30 45 38
6 13 26 38 32
A/B Any Y 2 75 150 245 190
4.5 15 30 45 38
6 13 26 38 32
ten Enable time G Any Y 2 100 200 300 250 ns
4.5 24 40 60 50
6 18 34 51 43
tt Transition time Any Y 2 45 210 315 265 ns
4.5 17 42 63 53
6 13 36 53 45
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 SN54HC258 SN74HC258 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 60 100 150 125 ns
4.5 13 20 30 25
6 12 17 25 21
A/B Any Y 2 60 115 175 145
4.5 13 23 35 29
6 12 20 30 25
ten Enable time G Any Y 2 70 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tdis Diable time G Any Y 2 75 150 225 190 ns
4.5 15 30 45 38
6 13 26 38 32
tt Transition time Any 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 SN54HC258 SN74HC258 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd Propagation delay A or B Any Y 2 95 150 245 190 ns
4.5 23 30 45 38
6 21 26 38 32
A/B Any Y 2 95 165 240 210
4.5 23 33 48 42
6 21 28 41 36
ten Enable time G Any Y 2 100 200 300 250 ns
4.5 24 40 60 50
6 18 34 51 43
tt Transition time Any Y 2 45 210 315 265 ns
4.5 17 42 63 53
6 13 36 53 45
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |