Which of 74hc 14, 74ls 14, 74ls04, 74ls04 and 74ls00 is used for shaping the front-end circuit of the frequency meter?
If you want to use NOT-gate to shape the burr behind the square wave of the sine wave table, you can use 74HC 14 and CD40 106. These two circuits are the same, and the power supply voltage CD is the same.
40 106 is 3- 18V, and 74HC 14 is 2-6V. Both circuits are CMOS Schmitt triggers. CD4096 is a gated J-K flip-flop I want to know what you want to do with CD4096.