Consider a D-FF with D = Q. Suppose the input clock has a frequency of 50 MHz. W

Question

Consider a D-FF with D = Q. Suppose the input clock has a frequency of 50 MHz. What is the frequency of the signal on the Q output? a) 50 MHz b) 100 MHz c) 25 MHz d) none of the above Reflow soldering can be used to solder a AS6C62256-55PCN SRAM on a printed circuit board. a) TRUE b) FALSE Which of the following is a method of doing refresh operations on DRAM? a) sequential b) combinational c) synchronous d) asynchronous e) burst A 74LVC2G74 flip flop uses VCC = 3.3 V. What is the data setup lime? a) 1.3 ns b) 1.2 ns c) 1.7 ns d) 1.1 ns e) 2.47 ns

Explanation / Answer

27. 25MHz because D-flip flop is a frequency divider by 2

28. True

29. Burst refresh

30.1.3 ns as per data sheet

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