Counters Questions

• The decimal equivalent of the largest number that can be stored in a 4-bit binary counter is ________.
• A J-K flip-flop is reset and must stay reset after the clock pulse. This transition requires that ________.
• A BCD counter has ________ states.
• The duty cycle of the most significant bit from a 4-bit (0–9) BCD counter is ________.
• The circuit shown below is used for ________, and for the inputs shown, the DATA output will be ________.
• In order to check the CLR function of a counter, ________.
• A decade counter will count through decimal ________.
• The ________ counter in the Altera library has controls that allow it to count up or down, and perform synchronous parallel load and asynchronous cascading.
• A(n) ________ one-shot starts a pulse in response to a trigger and will restart the internal pulse timer every time a subsequent trigger edge occurs before the pulse is complete.
• It is a characteristic of ring counters that the ________ equal to the number of flip-flops in the register.
• An asynchronous binary up counter, made from a series of leading edge-triggered flip-flops, can be changed to a down counter by ________.
• A sequential circuit design is used to ________.
• ________ is the output frequency of the counter shown below.
• One method of troubleshooting involves ________ the circuit under test with a ________ or ________ and then observing the output to check for proper bit patterns.
• The given circuit represents a(n) ________.
• Many parallel counters use ________ presetting whereby the counter is preset on the active transition of the same clock signal that is used for counting.
• The technique used by one-shots to respond to an edge rather than a level is called ________.
• Assume you want to determine the timing diagram for a 4-bit counter using an oscilloscope. The best choice for an oscilloscope trigger signal is ________.
• Asynchronous counters are often called ________ counters.
• Assume a 4-bit ripple counter has a failure in the second flip-flop such that it "locks up." The third and fourth stages will ________.