ZHCSHK0N October   1995  – February 2018 SN54AHCT240 , SN74AHCT240

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
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Noise Characteristics
    8. 6.8 Operating Characteristics
  7. 7 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13器件和文档支持
    1. 13.1 社区资源
    2. 13.2 相关链接
    3. 13.3 商标
    4. 13.4 静电放电警告
    5. 13.5 Glossary
  14. 14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)
  • DB|20
  • NS|20
  • N|20
  • DW|20
  • PW|20
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS TA = 25°C SN54AHCT240 –40°C to 85°C
SN74AHCT240		 –40°C to 125°C
SN74AHCT240		 UNIT
MIN TYP MAX MIN MAX MIN MAX MIN MAX
VOH High-level output voltage IOH = –50 µA, VCC = 4.5 V 4.4 4.5 4.4 4.4 4.4 V
IOH = –8 mA, VCC = 4.5 V 3.94 3.8 3.8 3.8
VOL Low-level output voltage IOL = 50 µA, VCC = 4.5 V 0.1 0.1 0.1 0.1 V
IOL = 8 mA, VCC = 4.5 V 0.36 0.44 0.44 0.44
IOZ High-impedance-state output current VO = VCC or GND
VCC = 5.5 V 		±0.25 ±2.5 ±2.5 ±2.5 µA
II Inflection-point current VI = 5.5 V or GND
VCC = 0 V to 5.5 V 		±0.1 ±1(1) ±1 ±1 µA
ICC Supply current VI = VCC or GND
IO = 0,VCC = 5.5 V 		4 40 40 40 µA
ΔICC(2) Supply current change One input at 3.4 V
other inputs at VCC or GND
VCC = 5.5 V 		1.35 1.5 1.5 1.5 mA
Ci Input capacitance VI = VCC or GND
VCC = 5.5 V 		2.5 10 10 10 pF
Co Output capacitance VO = VCC or GND
VCC = 5.5 V 		3 pF
(1) On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
(2) This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.