ZHCSIR4Q July   1995  – September 2018 SN54LVCH245A , SN74LVCH245A

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
    2.     Pin Assignments: ZQN Package
    3.     Pin Assignments: ZXY Package
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions: SN74LVCH245A
    4. 6.4  Recommended Operating Conditions: SN54LVCH245A
    5. 6.5  Thermal Information
    6. 6.6  Electrical Characteristics: SN74LVCH245A
    7. 6.7  Electrical Characteristics: SN54LVCH245A
    8. 6.8  Switching Characteristics: SN74LVCH245A, –40°C TO 85°C
    9. 6.9  Switching Characteristics: SN74LVCH245A, –40°C TO 125°C
    10. 6.10 Switching Characteristics: SN54LVCH245A
    11. 6.11 Operating Characteristics
    12. 6.12 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Balanced High-Drive CMOS Push-Pull Outputs
      2. 8.3.2 Standard CMOS Inputs
      3. 8.3.3 Negative Clamping Diodes
      4. 8.3.4 Bus-Hold Data Inputs
      5. 8.3.5 Partial Power Down (Ioff)
      6. 8.3.6 Over-voltage Tolerant Inputs
      7. 8.3.7 Output Enable
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 相关链接
    2. 12.2 商标
    3. 12.3 静电放电警告
    4. 12.4 术语表
  13. 13机械、封装和可订购信息

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)
  • W|20
  • J|20
  • FK|20
散热焊盘机械数据 (封装 | 引脚)
订购信息

7 Parameter Measurement Information

SN54LVCH245A SN74LVCH245A pmi-load-circuit.gif
1. CL includes probe and jig capacitance.
Figure 3. Load Circuit

Table 1. Test Load Switch Position

TEST S1
tPLH / tPHL Open
tPLZ / tPZL VLOAD
tPHZ / tPZH GND

Table 2. Test and Measurement Conditions

VCC INPUTS VM VLOAD CL RL VΔ
VI tr/tf
1.8 V ± 0.15 V VCC ≤ 2 ns VCC / 2 2 × VCC 30 pF 1 kΩ 0.15 V
2.5 V ± 0.2 V VCC ≤ 2 ns VCC / 2 2 × VCC 30 pF 500 Ω 0.15 V
2.7 V 2.7 V ≤ 2.5 ns 1.5 V 6 V 50 pF 500 Ω 0.3 V
3.3 V ± 0.3 V 2.7 V ≤ 2.5 ns 1.5 V 6 V 50 pF 500 Ω 0.3 V
SN54LVCH245A SN74LVCH245A pmi-wf-en-dis-times.gif
1. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
2. tPZL and tPZH are the same as ten.
3. tPLZ and tPHZ are the same as tdis.
Figure 4. Voltage Waveforms Enable and Disable Times Low- and High-Level Enabling
SN54LVCH245A SN74LVCH245A pmi-wf-setup-hold.gifFigure 6. Voltage Waveforms Setup and Hold Times
SN54LVCH245A SN74LVCH245A pmi-wf-pls-dur.gifFigure 5. Voltage Waveforms Pulse Duration
SN54LVCH245A SN74LVCH245A pmi-wf-tdp-op.gif
1. tPLH and tPHL are the same as tpd.
Figure 7. Voltage Waveforms Propagation Delay Times Inverting and Noninverting Outputs
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 |