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CD54HCT240

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 Temper...

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CD54HCT240: 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-St...

CD54HCT240 Data Sheet

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Part Number:
CD54HCT240
Supply Ability:
5000

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Product Details

Description



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 . . . -55oC to 125oC
• 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


Pinout

Connection Diagram


Specifications

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


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.




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