beautypg.com

Quiz – Elenco Understanding Logic Gates and Circuits User Manual

Page 31

background image

Quiz

7. What latch is the circuit in question 8 equivalent to?

a)

D Latch

b) S-R NOR Latch

c)

S-R NAND Latch

d) J-K Latch

8. Show how you would create a gated S-R NAND latch.

9. Which of the following is NOT true about a J-K latch:

a)

It has a “not allowed” state

b) J-K latches are sometimes used in counters

c)

J-K latches are sometimes used in memory devices

d) The J-K latch is an extension of the S-R NOR latch that eliminates the “not allowed” state

31