CD74HC4049E CD74HC4049 74HC4049 High Speed CMOS Logic Hex Inverting Buffers DIP-16 Breadboard-Friendly



The ’HC4049 are fabricated with high-speed silicon gate technology. They have a modified input protection structure that enables these parts to be used as logic level translators which convert high-level logic to a low-level logic while operating off the low-level logic supply. For example, 15-V input pulse levels can be down-converted to 0-V to 5-V logic levels.

The modified input protection structure protects the input from negative electrostatic discharge. These parts also can be used as simple buffers or inverters without level translation. The ’HC4049 are enhanced versions of equivalent CMOS types.


  • CD74HC4049E

This item features:

  • Typical Propagation Delay: 6ns at VCC = 5V, CL = 15pF, TA = 25°C
  • High-to-Low Voltage Level Converter for up to VI = 16V
  • Fanout (Over Temperature Range) 
    • Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • 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


  • New and Authentic Component(s) - CD74HC4049E High Speed CMOS Logic Hex Inverting Buffers IC
  • Friendly Note: Be mindful of the many, inexpensive, counterfeits available on the market.

General details:

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