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CD74HC21E CD74HC21 74HC21 7421 High Speed CMOS Logic Dual 4-Input and Gates Breadboard-Friendly IC DIP-14 (Pack of 5)

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$12.49

$ 6 .99 $6.99

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  • The ’HC21 logic gates utilize silicon gate CMOS technology to achieve operating speeds similar to LSTTL gates with the low power consumption of standard CMOS integrated circuits
  • Buffered Inputs, Balanced Propagation Delay and Transition Times, Significant Power Reduction Compared to LSTTL Logic ICs
  • Typical Propagation Delay: 9ns at VCC = 5V, CL = 15pF, TA = 25°C, 2V to 6V Operation
  • Fanout (Over Temperature Range) Standard Outputs . . . . . . . . 10 LSTTL Loads Bus Driver Outputs . . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . -55°C to 125°C, High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V


The ’HC21 logic gates utilize silicon gate CMOS technology to achieve operating speeds similar to LSTTL gates with the low power consumption of standard CMOS integrated circuits. All devices have the ability to drive 10 LSTTL loads. The HCT logic family is functionally pin compatible with the standard LS logic family.


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