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MFG:H  Package Cooled:SOP20  

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Part Number: CD74HCT244

 

MFG: H

Package Cooled: SOP20

 

Description: The 'HC240 and 'HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC241, 'HCT241, ...


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CD74HCT244 General Description


The 'HC240 and 'HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC241, 'HCT241, 'HC244 and 'HCT244 are non-inverting threestate buffers that differ only in that the 241 has one activehigh and one active-low output enable, and the 244 has two active-low output enables. All three types have identical pinouts.

CD74HCT244 Maximum Ratings

DC Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 7V
DC Input Diode Current, IIK
    For VI < -0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, IOK
    For VO < -0.5V or VO > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±20mA
DC Drain Current, per Output, IO
    For -0.5V < VO < VCC + 0.5V. . . . . . . . . . . . . . . . . . . . . . . . . . ±35mA
DC Output Source or Sink Current per Output Pin, IO
    For VO > -0.5V or VO < VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±25mA
DC VCC or Ground Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . .±70mA

CD74HCT244 Features

• HC/HCT240 Inverting
• HC/HCT241 Non-Inverting
• HC/HCT244 Non-Inverting
• Typical Propagation Delay = 8ns at VCC = 5V, CL = 15pF, TA = 25oC for HC240
• Three-State Outputs
• Buffered Inputs
• High-Current Bus Driver Outputs
• Fanout (Over Temperature Range)
  - Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
  - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55 to 125
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL Logic ICs
• HC Types
  - 2V to 6V Operation
  - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
• HCT Types
  - 4.5V to 5.5V Operation
  - Direct LSTTL Input Logic Compatibility, VIL= 0.8V (Max), VIH = 2V (Min)
  - CMOS Input Compatibility, Il 1A at VOL, VOH

CD74HCT244 Connection Diagram

CD74HCT244 Connection Diagram

CD74HCT244 datasheet

CD74HCT244
PDF/DataSheet Download

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Related Part Number

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  • CD74HCT243

    CD74HCT243

    The CD74HCT242, 'HC243 and 'HCT243 silicon-gate CMOS three-state bidirectional inverting and non-inverting buffers are intended for two-way asynchronous communication between data buses. They have high drive current outputs which enable high-speed operation ...

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