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Computer Science 8 Online
OpenStudy (ajprincess):

Pls help:) Identify the following sequential circuits and draw their timing diagrams for the given input.

OpenStudy (ajprincess):

OpenStudy (ajprincess):

My answer is it is synchronous(clocked) s-r latch

OpenStudy (ajprincess):

OpenStudy (ajprincess):

OpenStudy (ajprincess):

OpenStudy (ajprincess):

My answer is it is a 5 bit serial-in paralle-out shift register.

ganeshie8 (ganeshie8):

looks good, just a small thing i noticed in waveforms for first question :- yes, its a clocked SR latch, which is LEVEL sensitive. But, putting arrow MARKS on Clock waveform are hinting rising edge triggered operation. So i guess if you remove the arrow marks, confusion wont be there :)

OpenStudy (ajprincess):

oh k. Thanx a lot:) I have one more. If u dnt mind can u pls check that too?

OpenStudy (ajprincess):

OpenStudy (ajprincess):

My answer is that it is a 3-bit up counter

ganeshie8 (ganeshie8):

All T flops, Is the first flop input tied to 1 ?

OpenStudy (ajprincess):

ya

ganeshie8 (ganeshie8):

Also, Is the first flop output is taken as Q0 or Q2 ? pic is not that clear..

OpenStudy (ajprincess):

sry. it is taken as Q0

ganeshie8 (ganeshie8):

Good, so LSB is always toggling

ganeshie8 (ganeshie8):

yup 3-bit up counter !

OpenStudy (ajprincess):

LSB?

ganeshie8 (ganeshie8):

Least Significant Biscuit :)

ganeshie8 (ganeshie8):

lol dont wry about it, its just means the units digit

OpenStudy (ajprincess):

lol k

OpenStudy (ajprincess):

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