SCLS128H December   1982  – August 2024 SN54HC240 , SN74HC240

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Description
  4. 3 Pin Configuration and Functions
  5. 4 Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Recommended Operating Conditions
    3. 4.3 Thermal Information
    4. 4.4 Electrical Characteristics
    5. 4.5 Switching 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
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    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
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • W|20
  • J|20
  • FK|20
Thermal pad, mechanical data (Package|Pins)
Orderable Information

4.6 Switching Characteristics

over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 5-1)
PARAMETER FROM
(INPUT)		 TO
(OUTPUT)		 VCC TA = 25°C SN54HC240 SN74HC240 UNIT
MIN TYP MAX MIN MAX MIN MAX
tpd A Y 2 V 75 150 225 190 ns
4.5 V 15 30 45 38
6 V 13 26 38 32
ten OE Y 2 V 100 200 300 250 ns
4.5 V 20 40 60 50
6 V 17 34 51 43
tt Y 2 V 45 210 315 265 ns
4.5 V 17 42 63 53
6 V 13 36 53 45