Electrical Engineering (EE) Exam > Electrical Engineering (EE) Videos > Analog and Digital Electronics > 3-Bit Synchronous Up Counter
3-Bit Synchronous Up Counter Video Lecture | Analog and Digital Electronics - Electrical Engineering (EE)
FAQs on 3-Bit Synchronous Up Counter Video Lecture - Analog and Digital Electronics - Electrical Engineering (EE)
| 1. What is a 3-bit synchronous up counter? |  |
Ans. A 3-bit synchronous up counter is a digital circuit that counts upwards in binary from 000 to 111. It has three flip-flops that change their states at the rising edge of a clock signal, allowing the counter to increment by 1 with each clock pulse.
| 2. How does a 3-bit synchronous up counter work? | |
Ans. A 3-bit synchronous up counter operates by using three flip-flops which are connected in a cascaded manner. The first flip-flop receives the clock signal, while the subsequent flip-flops receive the outputs of the previous flip-flop as their clock inputs. When the clock signal rises, the first flip-flop changes its state, and if it was in the '0' state, it becomes '1'. This change in state propagates to the next flip-flop, and so on, causing the counter to increment.
| 3. What is the maximum count of a 3-bit synchronous up counter? | |
Ans. The maximum count of a 3-bit synchronous up counter is 7. Since it is a 3-bit counter, it can represent numbers from 000 to 111 in binary. In decimal, this corresponds to the range from 0 to 7.
| 4. What is the purpose of a synchronous up counter? | |
Ans. The purpose of a synchronous up counter is to count upwards in a controlled and synchronized manner. It is commonly used in digital systems for various applications, such as event counting, sequence generation, timing control, and addressing memory locations.
| 5. What is the difference between a synchronous up counter and an asynchronous up counter? | |
Ans. The main difference between a synchronous up counter and an asynchronous up counter lies in how they handle the clock signal. In a synchronous up counter, all flip-flops change their states simultaneously at the rising edge of the clock signal, ensuring synchronized counting. On the other hand, an asynchronous up counter changes the state of each flip-flop independently, regardless of the clock signal, leading to potential timing issues and glitches.
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