What is a CD4040?
CD4040 belongs to the CD4000 IC series. It is a 12-stage ripple carry binary counter. The counter advances one count on the negative transition of each clock pulse. The counters are reset to the zero states by a logical “1” at the reset input independent of the clock.
What is 12-stage binary counter?
The VHC4040 is a 12-stage counter which increments on the negative edge of the input clock and all outputs are reset to a low level by applying a logical high on the reset input. An input protection circuit insures that 0V to 7V can be applied to the inputs without regard to the supply voltage.
What is a ripple carry binary counter?
Description: The CD4040B are ripple-carry binary counters. The state of a counter advances one count on the negative transition of each input pulse; a high level on the RESET line resets the counter to its all zeros state. Schmitt trigger action on the input-pulse line permits unlimited rise and fall times.
How does cd4040 work?
Specifications. The CD4040BC is a 12-stage ripple carry binary counter. The counters are advanced one count on the negative transition of each clock pulse. The counters are reset to the zero state by a logical “1” at the reset input independent of clock.
What is 4bit ripple counter?
In 4-bit ripple counter, n value is 4 so, 4 JK flip flops are used and the counter can count up to 16 pulses. Below the circuit diagram and timing diagram are given along with the truth table.
Why the ripple counter is named so?
Asynchronous Counters. Only the first flip-flop is clocked by an external clock. Asynchronous counters are also called ripple-counters because of the way the clock pulse ripples it way through the flip-flops.
How does a 4-bit binary ripple counter work?
This circuit is a 4-bit binary ripple counter. All the JK flip-flops are configured to toggle their state on a downward transition of their clock input, and the output of each flip-flop is fed into the next flip-flop’s clock. So, when each bit changes from 1 to 0, it “carries the one” to the next higher bit.
What is the T flip-flop?
The T or “toggle” flip-flop changes its output on each clock edge, giving an output which is half the frequency of the signal to the T input. It is useful for constructing binary counters, frequency dividers, and general binary addition devices. It can be made from a J-K flip-flop by tying both of its inputs high.