When is LOW, the data are shifted one bit per clock pulse.

More Questions from Shift Registers

• The 74194 4-bit bidirectional universal shift register has a wide range of applications.
• Parallel load means to load all flip-flops at the same time.
• In a 74164 8-bit shift register, in order for the parallel data output to be synchronously loaded on the negative clock edge, the parallel enable input is LOW.
• A stage is two storage elements in a register.
• The ring and Johnson shift counters are uncommon circuits that are similar to synchronous counters.
• A type of shift register that requires access to the Q outputs of all stages is ________.
• A Johnson counter, constructed with N flip-flops, has how many unique states?
• Assume a LOW logic level is placed on the SHIFT/LOAD input of a 74195 shift register. The output will change ________.
• A 4-bit ring counter is loaded with a single 1. The frequency of any given output is ________.
• Assume a 4-bit Johnson counter is initially cleared. After the first clock pulse the output is 0001. After the next clock pulse the output will be ________.

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