Programmable Read Only Memory-2 MCQ’s

This set of Digital Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Programmable Read Only Memory-2″.

1. During programming p-n junction is _____________
a) Avalanche reverse biased
b) Avalanche forward biased
c) Zener reverse biased
d) Zener reverse biased

2. The full form of FAMOS is _____________
a) Floating Gate Avalanche Injection MOS
b) Float Gate Avalanche Injection MOS
c) Floating Gate Avalanche Induction MOS
d) Float Gate Avalanche Induction MOS

3. Silicon links are made up of _____________
a) Polycrystalline silicon
b) Polycrystalline magnesium
c) Nichrome
d) Silicon dioxide

4. PROM is programmed by _____________
a) EPROM programmer
b) EEPROM programmer
c) PROM programmer
d) ROM programmer

5. For the implementation of PROM, which IC is used?
a) IC 74187
b) IC 74186
c) IC 74185
d) IC 74184

6. How many memory locations are addressed using 18 address bits?
a) 165,667
b) 245,784
c) 262,144
d) 212,342

7. The PROM starts out with _____________
a) 1s
b) 0s
c) Null
d) Both 1s and 0s

8. IC 74186 is of ______________
a) 1024 bits
b) 32 bits
c) 512 bits
d) 64 bits

9. How many address bits are needed to operate a 2K * 8-bit memory?
a) 10
b) 11
c) 12
d) 13

10. What is the bit storage capacity of a ROM with a 1024 × 8 organization?
a) 1024
b) 4096
c) 2048
d) 8192

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