Hello all
I'm trying to learn how counters work so I picked this 74HCT4520 synchronous binary counter up and I did the following
pin 1 - clock input
pin 2 - set high
pin 3 - LED1
pin 4 - LED2
pin 5 - LED3
pin 6 - LED4
pin 7 - set LOW
pin 8 - GND
pin 16 - 5V
so viewing the state of the LEDs I thought upon resetting the counter once it would start counting from state 0000 ---> 1111 (2^4 = 16 values 0-15)
but the counter its random, I don't see a nice count such as:
0000
0001
0010
.
.
.
.
.
1111
instead I see the values all over the place, worth saying that there are 16 values after it starts to count again so at least that seems to make sense. What concept am I missing?
also what is the point of pin 2 and 10, looking at the figure 6, the timing diagram shows that when the regular clock goes low if a clock is fed into this pin than the count continues?
Thanks
Newbie
I'm trying to learn how counters work so I picked this 74HCT4520 synchronous binary counter up and I did the following
pin 1 - clock input
pin 2 - set high
pin 3 - LED1
pin 4 - LED2
pin 5 - LED3
pin 6 - LED4
pin 7 - set LOW
pin 8 - GND
pin 16 - 5V
so viewing the state of the LEDs I thought upon resetting the counter once it would start counting from state 0000 ---> 1111 (2^4 = 16 values 0-15)
but the counter its random, I don't see a nice count such as:
0000
0001
0010
.
.
.
.
.
1111
instead I see the values all over the place, worth saying that there are 16 values after it starts to count again so at least that seems to make sense. What concept am I missing?
also what is the point of pin 2 and 10, looking at the figure 6, the timing diagram shows that when the regular clock goes low if a clock is fed into this pin than the count continues?
Thanks
Newbie