SCLS252O October   1995  – July 2024 SN54AHCT240 , SN74AHCT240

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Noise Characteristics
    8. 5.8 Operating Characteristics
    9. 5.9 Typical Characteristics
  7.   Parameter Measurement Information
  8. Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
  9. Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  10. Device and Documentation Support
    1. 8.1 Documentation Support (Analog)
      1. 8.1.1 Related Links
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  11. Revision History
  12. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • DB|20
  • NS|20
  • N|20
  • DW|20
  • PW|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)
PARAMETERTEST CONDITIONSTA = 25°CSN54AHCT240–40°C to 85°C
SN74AHCT240
–40°C to 125°C
SN74AHCT240
UNIT
MINTYPMAXMINMAXMINMAXMINMAX
VOHHigh-level output voltageIOH = –50 µA, VCC = 4.5 V4.44.54.44.44.4V
IOH = –8 mA, VCC = 4.5 V3.943.83.83.8
VOLLow-level output voltageIOL = 50 µA, VCC = 4.5 V0.10.10.10.1V
IOL = 8 mA, VCC = 4.5 V0.360.440.440.44
IOZHigh-impedance-state output currentVO = VCC or GND
VCC = 5.5 V
±0.25±2.5±2.5±2.5µA
IIInflection-point currentVI = 5.5 V or GND
VCC = 0 V to 5.5 V
±0.1±1(1)±1±1µA
ICCSupply currentVI = VCC or GND
IO = 0,VCC = 5.5 V
4404040µA
ΔICC(2)Supply current changeOne input at 3.4 V
other inputs at VCC or GND
VCC = 5.5 V
1.351.51.51.5mA
CiInput capacitanceVI = VCC or GND
VCC = 5.5 V
2.5101010pF
CoOutput capacitanceVO = VCC or GND
VCC = 5.5 V
3pF
On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
This is the increase in supply current for each input at one of the specified TTL voltage levels, rather than 0 V or VCC.