SCLS226L October   1995  – July 2024 SN54AHC244 , SN54AHC244-SP , SN74AHC244

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, VCC = 3.3V ± 0.3V
    7. 5.7  Switching Characteristics, VCC = 5V ± 0.5V
    8. 5.8  Noise Characteristics
    9. 5.9  Operating Characteristics
    10. 5.10 Typical Characteristics
  7. Parameter Measurement Information
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  9. Application and Implementation
    1. 8.1 Power Supply Recommendations
    2. 8.2 Layout
      1. 8.2.1 Layout Guidelines
      2. 8.2.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Switching Characteristics, VCC = 5V ± 0.5V

over recommended operating free-air temperature range, VCC = 5V ± 0.5V (unless otherwise noted) (see Load Circuit and Voltage Waveforms)
PARAMETERFROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
TA = 25°CSN54AHC244 SN74AHC244 UNIT
MINTYPMAXMINMAXMINMAX
tPLHAYCL = 15pF3.9(1)5.5(1)1(1)6.5(1)16.5ns
tPHL3.9(1)5.5(1)1(1)6.5(1)16.5
tPZHOEYCL = 15pF4.7(1)7.3(1)1(1)8.5(1)18.5ns
tPZL4.7(1)7.3(1)1(1)8.5(1)18.5
tPHZOEYCL = 15pF5(1)7.2(1)1(1)8.5(1)18.5ns
tPLZ5(1)7.2(1)1(1)8.5(1)18.5
tPLHAYCL = 50pF5.47.518.518.5ns
tPHL5.47.518.518.5
tPZHOEYCL = 50pF6.29.3110.5110.5ns
tPZL6.29.3110.5110.5
tPHZOEYCL = 50pF6.79.2110.5110.5ns
tPLZ6.79.2110.5110.5
tsk(o)CL = 50pF1(2)1ns
On products compliant to MIL-PRF-38535, this parameter is not production tested.
On products compliant to MIL-PRF-38535, this parameter does not apply.