# Which IC is used in mod 10 asynchronous counter?

## Which IC is used in mod 10 asynchronous counter?

IC 7490 is Asynchronous mod-10 Counter IC.

## How does a mod 10 counter work?

A decade counter is called as mod -10 or divide by 10 counter. It counts from 0 to 9 and again reset to 0. It counts in natural binary sequence. It resets after Q3 Q2 Q1 Q0 = 1001.

A decade counter is very common in today’s electronics. Most commonly available as IC CD7490, contains multiple flip flops to convert BCD-to-decimal and is incorporated as part of larger integrated circuits. A decade counter counts in a sequence of ten and then returns back to zero after the count of nine.

What is the function of IC 7490?

It is used as divide by 6 counter by supplying pulse at input 1 and grounding reset pins R3 and R4 and connecting QA with input 2. 7490 IC can work like bi –quinary counter, which is used to store decimal digits in the form of 4 bit binary numbers.

### What is the difference between BCD counter and mod-10 counter?

The counting range of the n-bit modulus binary counter is from 0 to 2n-1. Similarly, the BCD counter is a Mod-10 counter, which resets to zero after counting from 0(0000) to 9 (1001), represents the result in decimal form. (that means divide-by-10 count).

### Which of the following IC can be used for decade counter?

Which of the following is a decade counter? Explanation: IC 7490 is called as decade counter or MOD-10.

Which FF is used to construct asynchronous counter?

Asynchronous Counters can easily be made from Toggle or D-type flip-flops. They are called “Asynchronous Counters” because the clock input of the flip-flops are not all driven by the same clock signal.

What type of clock is used with IC 7490?

A 10MHz clock pulse is generated by the crystal and the associated circuit consisting of IC2 (7404). This clock pulse is fed to pin 1 of IC3 (IC 7490), which divides it by 10 to give a 1MHz clock pulse at its output pin 12.

#### Which is true about the mod 10 asynchronous counter?

MOD 10 asynchronous counter counts from 0000 to 1001. Rest of the states are invalid. To design the combinational circuit of valid states, following truth table and K-map is drawn: From the above truth table, we draw the K-maps and get the expression for the MOD 10 asynchronous counter.

#### Is there a maximum output number for an asynchronous counter?

As there is a maximum output number for Asynchronous counters like MOD-16 with a resolution of 4-bit, there are also possibilities to use a basic Asynchronous counter in a configuration that the counting state will be less than their maximum output number. Modulo or MOD counters are one of those types of counters.

How does the asynchronous counter work on a clock?

The Asynchronous counter count upwards on each clock pulse starting from 0000 (BCD = 0) to 1001 (BCD = 9). Each JK flip-flop output provides binary digit, and the binary out is fed into the next subsequent flip-flop as a clock input.

How is an asynchronous truncated counter used in flipflop?

To get the advantage of the asynchronous inputs in the flipflop, Asynchronous Truncated counter can be used with combinational logic.

10/02/2020