3.2.3 Asynchronous Counters: Medium-Scale Integration

What type of counter is the 74LS93 IC?

• 8-bit ripple counter

• 4-bit ripple counter

• 2-bit ripple counter

• 16-bit ripple counter

The divide-by-two and divide-by-eight sections can be cascaded to create a divide-by-sixteen circuit when a wire is added between which two points?

From ​ (a)   to ​ (b)  

• 12
• 1
• 14
• 9
• 11
• 8

What type of counter is shown in the design example circuit diagram?

• 4-Bit Synchronous, Modulus-13 Counter

• 4-Bit Asynchronous, Modulus-13 Counter

• 8-Bit Asynchronous, Modulus-13 Counter

• 4-Bit Asynchronous, Modulus-10 Counter

What is a trade-off for the convenience of an all-in-one package in most MSI integrated circuits?

• Increased flexibility

• Lack of design flexibility

• Higher cost

• Smaller size

Fill in the blank: The primary limitations of the 74LS93 are that the flip-flops are not pre-settable, thus the count must always start at (a)   .