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Which factor affects the speed of ripple counter?
Explanation: Since a counter is constructed using flip-flops, therefore, the propagation delay in the counter occurs only due to the flip-flops. Each bit has propagation delay = 15ns. So, 4 bits = 15ns * 4 = 60ns. Explanation: A ripple counter is something that is derived by other flip-flops.
How is ripple counter implemented?
In the circuit design of the binary ripple counter, two JK flip flops are used. The high voltage signal is passed to the inputs of both flip flops. This high voltage input maintains the flip flops at a state 1. In JK flip flops, the negative triggered clock pulse use.
Why the ripple counter is named so?
Asynchronous counters are also called ripple-counters because of the way the clock pulse ripples it way through the flip-flops.
Where is the ripple counter used?
A counter is basically used to count the number of clock pulses applied to a flip-flop. It can also be used for Frequency divider, time measurement, frequency measurement, distance measurement and also for generating square waveforms.
What is ripple counter explain with example?
It is known as ripple counter because of the way the clock pulse ripples its way through the flip-flops. Some of the features of ripple counter are: Only one flip-flop is applied with an external clock pulse and another flip-flop clock is obtained from the output of the previous flip-flop.
What’s the difference between 74LS and 74HCT ICS?
The 74HC family has High-speed CMOS circuitry, combining the speed of TTL with the very low power consumption of the 4000 series. They are CMOS ICs with the same pin arrangements as the older 74LS family.
What’s the maximum current of a 74 series IC?
For reliability use 74HCT if the system includes some 74LS ICs. Outputs can sink and source about 4mA if you wish to maintain the correct output voltage to drive logic inputs, but if there is no need to drive any inputs the maximum current is about 20mA. To switch larger currents you can connect a transistor.
What kind of power supply do I need for 74HCT?
For example mixing 4000 and 74HC requires the power supply to be in the range 3 to 6V. A circuit which includes 74LS or 74HCT ICs must have a 5V supply.
Is the 74l series the same as the TTL series?
The 74 series is often still called the ‘TTL series’ even though the latest ICs do not use TTL! The 74HC family has High-speed CMOS circuitry, combining the speed of TTL with the very low power consumption of the 4000 series. They are CMOS ICs with the same pin arrangements as the older 74LS family.