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If ‘n’ denotes the number of rows that are to be refreshed in a single refresh interval, ‘td’ denotes the range of time it may take then, refresh time (tr) can be defined as

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If ‘n’ denotes the number of rows that are to be refreshed in a single refresh interval, ‘td’ denotes the range of time it may take then, refresh time (tr) can be defined as

(a) n*td

(b) td/n

(c) n/td

(d) td^n

I had been asked this question during an internship interview.

My doubt is from Dynamic RAM Interfacing in portion Basic Peripherals and their Interfacing with 8086/88 of Microprocessor

1 Answer

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by (49.2k points)
Right answer is (b) td/n

To explain: Refresh time is the ratio of time duration taken for refreshing to the number of rows that are refreshed. Refresh frequency is the reciprocal of refresh time.

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