Random Access Memory – 2 MCQ’s

Digital Circuits Electronics & Communication Engineering

This set of Digital Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Random Access Memory – 2″.

1. The input data bit is written into the cell by setting ____________
a) The flip-flop for 1
b) Resetting the flip-flop
c) The flip-flop for HIGH
d) Both the flip-flop for 1 and resetting the flip-flop

2. When the READ/(WRITE)’ line is HIGH then the flip-flop is ____________
a) Activated
b) Deactivated
c) Unaffected
d) Both activated and deactivated

3. The memory capacity of a static RAM varies from ____________
a) 32 bit to 64 bit
b) 64 bit to 1024 bit
c) 64 bit to 1 Mega bit
d) 512 bit to 1 Mega bit

4. The flip-flop in static memory cell can be constructed using ____________
a) Capacitor or MOSFET
b) FET or JFET
c) Capacitor or BJT
d) BJT or MOSFET

5. IC 7489 is of ____________
a) 32 bit
b) 64 bit
c) 512 bit
d) 1024 bit

6. The first practical form of Random Access Memory (RAM) was the ____________
a) Cathode tube
b) Data tube
c) Memory tube
d) Select tube

7. Which of the following IC is TTL based static RAM?
a) IC 7488
b) IC 7489
c) IC 7487
d) IC 2114

8. Data is written in IC 7489 through ____________
a) Chip select
b) Enable
c) Data input
d) Memory enable

9. Magnetic-core memory was invented in ____________
a) 1946
b) 1948
c) 1947
d) 1945

10. Which one of the following IC is of 4KB?
a) IC 7488
b) IC 7489
c) IC 7487
d) IC 2114

11. What types of arrangements a TMS 4016 has?
a) 1024 * 4
b) 1024 * 8
c) 2048 * 4
d) 2048 * 8

12. Which of the following RAM is volatile in nature?
a) SRAM
b) DRAM
c) EEPROM
d) Both SRAM and DRAM

13. Which of the following IC implements the static MOS RAM?
a) TMS 4015
b) TMS 4014
c) TMS 4016
d) TMS 2114

14. How many address inputs are available in TMS 4016?
a) 10
b) 9
c) 12
d) 11

15. In TMS 4016, the data in/data out are ______________
a) Unidirectional
b) Parallel
c) Serial
d) Bidirectional

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