ZHCSST4C November   2002  – August 2024 CD74ACT14

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 说明
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 ESD Ratings
    3. 4.3 Recommended Operating Conditions
    4. 4.4 Thermal Information
    5. 4.5 Electrical Characteristics
    6. 4.6 Switching Characteristics
    7. 4.7 Operating Characteristics
  6. 5 Parameter Measurement Information
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Power Supply Recommendations
    2. 7.2 Layout
      1. 7.2.1 Layout Guidelines
        1. 7.2.1.1 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Documentation
    2. 8.2 接收文档更新通知
    3. 8.3 支持资源
    4. 8.4 Trademarks
    5. 8.5 静电放电警告
    6. 8.6 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

4.5 Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS VCC TA = 25°C − 55°C TO 125°C − 40°C TO 85°C UNIT
MIN MAX MIN MAX MIN MAX
VT+
Positive-going threshold		 5 V 1.4 2 1.4 2 1.4 2 V
VT−
Negative-going threshold		 5 V 0.8 1.3 0.8 1.3 0.8 1.3 V
∆VT
Hysteresis (VT+ − VT−)		 5 V 0.4 0.4 0.4 V
VOH VI = V T+ IOH = –50 µA 4.5 V 4.4 4.4 4.4 V
IOH = −24 mA 4.5 V 3.94 3.7 3.8
IOH = −50 mA(1) 5.5 V 3.85
IOH = −75 mA(1) 5.5 V 3.85
VOL VI = VT− IOL = 50 µA(1) 4.5 V 0.1 0.1 0.1 V
IOL = 24 mA(1) 4.5 V 0.36 0.5 0.44
IOL = 50 mA(1) 5.5 V 1.65
IOL = 75 mA(1) 5.5 V 1.65
II VI = VCC or GND 5.5 V ±0.1 ±1 ±1 µA
ICC VI = VCC or GND, IO = 0 5.5 V 4 80 40 µA
∆ICC(2) VI = VCC − 2.1 V 4.5 V to 5.5 V 2.4 3 2.8 mA
Ci 10 10 10 pF
(1) Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage to minimize power dissipation. Test verifies a minimum 50-Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive capability at 125°C.
(2) Additional quiescent supply current per input pin, TTL inputs high, 1 unit load.
Table 4-1 Act Input Load Table
INPUT UNIT LOAD
A 0.21
  1. Unit load is ∆ICC limit specified in electrical characteristics table (e.g., 2.4 mA at 25°C).