Deck 11: Proms and Memory Addressing

Question 1

Which of the following is programmed electrically by the user?

A)rom
B)eprom
C)prom
D)eeprom

Answer 1

prom

Question 2

PROMs are available in                        

A)bipolar and mosfet technologies
B)mosfet and fet technologies
C)fet and bipolar technologies
D)mos and bipolar technologies

Answer 2

mos and bipolar technologies

Question 3

Which of the following best describes the fusible-link PROM?

A)manufacturer-programmable, reprogrammable
B)manufacturer-programmable, one-time programmable
C)user-programmable, reprogrammable
D)user-programmable, one-time programmable

Answer 3

user-programmable, one-time programmable

Question 4

How can ultraviolet erasable PROMs be recognized?

A)there is a small window on the chip
B)they will have a small violet dot next to the #1 pin
C)their part number always starts with a "u", such as in u12
D)they are not readily identifiable, since they must always be kept under a small cover

Question 5

Which part of a Flash memory architecture manages all chip functions?

A)program verify code
B)floating-gate mosfet
C)command code
D)input/output pins

Question 6

How much locations an 8-bit address code can select in memory?

A)8 locations
B)256 locations
C)65,536 locations
D)131,072 locations

Question 7

What is a fusing process?

A)it is a process by which data is passed to the memory
B)it is a process by which data is read through the memory
C)it is a process by which programs are burnout to the diode/transistors
D)it is a process by which data is fetched through the memory

Question 8

Fusing process is                        

A)reversible
B)irreversible
C)synchronous
D)asynchronous

Question 9

The cell type used inside a PROM is                        

A)link cells
B)metal cells
C)fuse cells
D)electric cells

Question 10

How many types of fuse technologies are used in PROMs?

A)2
B)3
C)4
D)5

Question 11

Metal links are made up of                        

A)polycrystalline
B)magnesium sulphide
C)nichrome
D)silicon dioxide

Question 12

Silicon links are made up of                            

A)polycrystalline silicon
B)polycrystalline magnesium
C)nichrome
D)silicon dioxide

Question 13

During programming p-n junction is                            

A)avalanche reverse biased
B)avalanche forward biased.
C)zener reverse biased.
D)zener reverse biased

Question 14

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

Question 15

PROM is programmed by                            

A)eprom programmer
B)eeprom programmer
C)prom programmer
D)rom programmer

Question 16

The PROM starts out with                            

A)1s
B)0s
C)null
D)both 1s and 0s

Question 17

For implementation of PROM, which IC is used?

A)ic 74187
B)ic 74186
C)ic 74185
D)ic 74184

Question 18

IC 74186 is of                              

A)1024 bits
B)32 bits
C)512 bits
D)64 bits

Question 19

How many memory locations are addressed using 18 address bits?

A)165,667
B)245,784
C)262,144
D)212,342

Question 20

How many address bits are needed to operate a 2K * 8-bit memory?

A)10
B)11
C)12
D)13

Question 21

What is the bit storage capacity of a ROM with a 1024 × 8 organization?

A)1024
B)4096
C)2048
D)8192

Question 22

The logical sum of two or more logical product terms is called                      

A)sop
B)pos
C)or operation
D)nand operation

Question 23

The expression Y=AB+BC+AC shows the operation.

A)ex-or
B)sop
C)pos
D)nor

Question 24

The expression Y=(A+B)(B+C)(C+A) shows the operation.

A)and
B)pos
C)sop
D)nand

Question 25

The canonical sum of product form of the function y(A,B) = A + B is                      

A)ab + bb + a'a
B)ab + ab' + a'b
C)ba + ba' + a'b'
D)ab' + a'b + a'b'