GATE CSE 1992 | Question: 01-iii

Question

Many microprocessors have a specified lower limit on clock frequency (apart from the maximum clock frequency limit) because _____

Answer 1

Clock frequency becomes low means time period of clock becomes high. When this time period increases beyond the time period in which the volatile memory contents must be refreshed, we loose those contents. So, clock frequency can't go below this value.

Reference: https://gateoverflow.in/261/microprocessors-specified-frequency-frequency-__________ ​

Comments

it should be "volatile memory contents must be refreshed"

Answer 2

let f = n Hz

then T =1/n s

now for lim   1/n = infinite

             n→ 0