126. A decade counter will count through decimal ________.
127. One method of troubleshooting involves ________ the circuit under test with a ________ or ________ and then observing the output to check for proper bit patterns.
128. In VHDL, if we need to remember a value it must be stored in a ________.
129. A glitch that appears on the decoded output of a ripple counter is often difficult to see on an oscilloscope because ________.
130. It is a characteristic of ring counters that the ________ equal to the number of flip-flops in the register.
131. Many parallel counters use ________ presetting whereby the counter is preset on the active transition of the same clock signal that is used for counting.
132. A D flip-flop can be made to toggle by ________.
133. The given circuit represents a(n) ________.
134. The circuit shown below is a ________.
135. 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.
136. 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 ________.
137. Referring to the function table given below, taking the CLEAR, S1, and S0 inputs all HIGH ________.
138. 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 ________.
139. In order to use a shift register as a counter, ________.
140. In order to check the CLR function of a counter, ________.
141. The circuit shown below is used for ________, and for the inputs shown, the DATA output will be ________.
142. ________ is the output frequency of the counter shown below.
143. An asynchronous binary up counter, made from a series of leading edge-triggered flip-flops, can be changed to a down counter by ________.
144. A 4-bit binary up counter has an input clock frequency of 20 kHz. The frequency of the most significant bit is ________.
145. Modulus refers to ________.
146. A sequential circuit design is used to ________.
147. The MOD-10 counter is also referred to as a ________ counter.
148. In general, when using a scope to troubleshoot digital systems the instrument should be triggered by ________.
149. ________ counters are often used whenever pulses are to be counted and the results displayed in decimal.
150. The technique used by one-shots to respond to an edge rather than a level is called ________.