What is presettable down counter?
What is presettable down counter?
CD4029 – Presettable Binary/Decade Up/Down Counter. The CD4029 is a presettable up/down counter which counts in either binary or decade mode depending on the voltage level applied at binary/decade input. When binary/decade is at logical “1”, the counter counts in binary, otherwise it counts in decade.
How can you tell counters from down counters?
An up-counter counts events in increasing order. A down-counter counts stuff in the decreasing order. An up-down counter is a combination of an up-counter and a down-counter. It can count in both directions, increasing as well as decreasing.
What is the meaning of presettable?
Capable of being set in advance. A presettable timer.
How does a 74LS193 work?
The 74LS193 Four-Bit Binary Counter Two separate clock inputs are used to control up or down counting. The counter has a maximum MOD-16 count sequence that can be shortened to any modulus less than 16 by using the asynchronous control inputs. The clear input resets all count stages back to zero.
How do I connect a clock to a 74ls192?
Connect a 10k resistor from CLR to GND and 0.1uF cap from CLR to +5v on the 74LS192 so it provides a power on reset. To count up and down, have a pull up resistor on both the UP and DOWN pins and feed the clock to one OR the other input as required.
What circuit maker do I need for up/down counter?
Use a CD4510 for the up/down counter, and your problems may be over, after you figure out the different pinout. Bill_Marsden: honestly, i’d love to have a circuit maker anyway, just because that way I could re-create other circuits i’ve made, to have on hand for reference.
Does the 74192 need to have a high or low input?
According to the datasheet for the 74192, the input that are not in use want to be kept high, while the few circuits i’ve seen keep them low). I’ve tried both arrangements, but to no avail. When I turn on the circuit (and yes, i’m using a regulated 5V for the enture breadboard) the 7-segment display I have shows “0” but does not change.
How do I know if the up and down switch works?
The Up works, the Down works; the problem is in the switching back and fourth. EX: counting up to 5, removing the connector from the Up input, connecting it to the Down input, and then resuming.
