Sorry i dun get you. My condition is like this. I connect a decade counter 74ls90 with the latch 74ls374 and a bcd to 7 segment decoder 74ls47 and finally the 7 segment display. When i power up the circuit, the circuits start to count and 7 segment display shows the count. When i turn off the circuit, the circuits stop. And now when i turn on the circuit again, the 7 segment display count from a weird value and it does not count from 0.
How am i going to make it start from counting 0 every time i power up the circuit? Is it because of the latch memory?
Yes that it correct. Also remember to not float input pins then working with digital logic. A floating TTL input pin (not connected) will as thumb rule see logical one. But never depend on that in circuit design.