1 . 1 6 i n p u ts , 40 A N D ga t e s , 1 00 O R ga t e s ar e i n a P L A . T h e nu mb e r o f f u s e s t o b e p r o gr a m m e d i s ( a) 4 01 6 ( b ) 6 40 00 ( c ) 5 60 0 ( d ) 5 38 0
2 . A f u n c t i on ta b l e i s r e q u i r e d i n ve r y l a r ge nu mb e rs . T h e m e m or y m o s t s u i t a b l e f or t h i s p u rp os e i s ( a) E P ROM ( b ) RO M ( c ) E A ROM ( d ) P ROM
3 . A ROM h a s 3 2K × 8 o rg an i s at i o n . I t s c ap a c i ty i n b i t s i s ( a) 6 4 K b i t s ( b ) 1 28 K b i t s ( c ) 5 12 K b i t s ( d ) 2 56 K b i t s
4 . A U n a t e f u n c t i on m ay b e ( a) p o s i t i ve i n s om e of i t s var i a b l e s ( b ) n e g at i ve i n s om e o f i t s va ri a b l e s ( c ) p o s i t i ve o r n e ga t i ve i n a l l o f i t s va r i ab l e s ( d ) p o s i t i ve o r n e ga t i ve i n a ny c o mb i n a t i on of i t s var i a b l e s
5 . I f w 1 = 1 , w 2 = 1 & T = 2 w i t h b i n a r y i n p u t s x 1 & x 2. T h e o u t p u t Y r e p r e s e nt s ( a) A N D g at e ( b ) N O R ga t e ( c ) E X - OR g at e ( d ) O R ga t e
6 . T h e s p e e d o f a S e q u e nt i al C i r c u i t c o m p ar e d to a c omb i n a ti o n al c i r c u i t i s ( a) Fa s t ( b ) b e t t e r ( c ) E q u a l ( d ) S l ow
7 . I n a c omb i n a ti o n a l c i r c u i t t h e ou t p u t a t a ny i n s ta nt d e p e n d s o n — — — — . ( a) O n l y on p as t ou t p u t s ( b ) O n t h e p a s t o u t p u ts a n d i n p u t s p r e s e nt at t h a t i n s t a nt o f ti m e ( c ) O n l y i n p u t p r e s e nt a t t h at i n s ta nt o f t i m e ( d ) O n l y on p as t i n p u ts
8 . T h e ou t p u t i n a D fl i p fl op i s — — — — — – w h e n c l o ck i s p r e s e nt . ( a) o u tp u t i s a l way s 1 ( b ) C o m p l i m e nt of D ( c ) o u tp u t i s a l way s 0 ( d ) S a m e a s D
9 . A c i rc u i t c o n s i s t s o f m fl i p fl op s , i t g e n e r a te s — — — — — - s t at e s . ( a) 2 m ( b ) 2 m+ 1 ( c ) 2 m-1 ( d ) 2 2 m
1 0. T h e t i m i n g s i gn a l s o f a ri n g c ou nt e r c a n b e g e n e r at e d by u s i n g — — — — — –. ( a) 2 b i t c o u nte r an d 2 ×4 d e c o d e r . ( b ) 1 b i t c o u nte r an d 2 ×4 d e c o d e r . ( c ) 3 b i t c o u nte r an d 2 ×4 d e c o d e r . ( d ) 4 b i t c o u nte r an d 2 ×4 d e c o d e r .
1 1. S e r i a l a d d e rs a re u s e d b e c a u s e ( a) T h e y ar e s l ow ( b ) n e e d l e s s nu mb e r of d e v i c e s ( c ) n e e d m or e w i r e s ( d ) T h e y ar e Fas t
1 2. I n a s e q u e nt i al c i rc u i t d e s i g n s t a t e r e d u c t i o n i s d on e f o r d e s i g n i n g th e c i r c u i t w i t h ( a) m i n i mu m nu mb e r o f g a te s a n d m e m o r y l o c at i o n s ( b ) m i n i mu m nu mb e r o f F l i p F l o p s ( c ) m i n i mu m nu mb e r o f g a te s ( d ) O n e g at e on l y
1 3. W i t h I n i t i a l s t a t e C , t h e i n p u t s e q u e n c e 01 11 w i l l t r an s f or m t o o u tp u t s e q u e n c e (s h ow n i n fi g ur e 13 ) F i g u re 13 ( a) 0 11 1 ( b ) 1 11 0 ( c ) 1 01 0 ( d ) 1 11 1
1 4. A s e q u e nti a l m a ch i n e i s ( a) T wo t u p l e ( b ) q u i ntu p l e ( c ) o n e t u p l e ( d ) Q u ad tu p l e
1 5. I f i s z e r o t h e n w h i ch of t h e f o l l ow i n g s ta t e s i s c o m p a ti b l e w i t h D P S N S , O u tp u t X = 0 X = 1 A C , 1 E , 1 B C , - E , 1 C B , 0 A , 1 D D , 0 E , 1 E D , 1 A , 0 ( a) C ( b ) B ( c ) A ( d ) B an d C
1 6. A s yn ch r o n ou s s e q u e nt i al c i r c u i t c a n b e d e s c ri b e d by ( a) s t a te d i a gr am on l y ( b ) A S M ch ar t o n l y ( c ) s t a te d i a gr am or ta b l e or A S M ch a rt ( d ) s t a te t ab l e on l y
1 7. W h i ch o f th e t h e s e i s t r u e ( a) A S M C h ai t s r e p r e s e nt s P LA ’ s ( b ) A S M i s s a m e as S y n ch ro n ou s S e q u e nt i al c i r c u i t s ( c ) A S M ch ar t s r e p r e s e nts M u l t i p l e x or s ( d ) A S M ch ar t s r e p r e s e nts g at e s
1 8. T h e c o m pl e te c l a s s e s i n c ol u m n C a re P S N S O /P I 1 I 2 A E , 0 B , 0 B , 0 B F , 0 A , 0 C E , - C , 0 D F , 1 D , 0 E C , 1 C , 0 f D , - B , 0 E F B C AC , E F X X E F X X C u r r e c t C D , E F D E X B C , DE X B C , C D ( a) C E F ( b ) C D E & C E F ( c ) A E F ( d ) C D E
1 9. W h i ch o f th e s e i s t r ue ( a) T h e i n p u ts o f t h e M U X a r e d e t e r m i n e d n e i t h e r f r o m d e c i s i o n b ox e s n or s ta t e t r an s i ti o n s ( b ) T h e i n p u ts o f t h e M U X a r e d e t e r m i n e d f r om th e d e c i s i on b ox e s an d s t at e tr a n s i t i on s ( c ) T h e i n p u ts o f t h e M U X a r e d e t e r m i n e d f r om th e d e c i s i on b ox e s an d n ot s ta t e t r an s i ti o n s ( d ) T h e i n p u ts o f t h e M U X a r e d e t e r m i n e d f r om th e s t a te t r an s i t i o n s a n d n o t f r o m d e c i s i o n b ox e s
2 0. w h i ch of t he s e i s t r u e ( a) A s e qu e nt i a l c i r c u i t w i t h 3 nu mb e r s o f o u t p u ts p r o d uc e s a n o u t pu t al p h a b e t c o nta i n i n g 32 nu mb e r o f o u tp u t s e t s ( b ) A s e q u e nt i al c i r c u i t w i t h 3 nu mb e r s o f ou t p u t s p r o d u c e s an o u tp u t a l p h ab e t c o nt ai n i n g 8 nu mb e r of o u t pu t s e t s ( c ) A s e qu e nt i a l c i r c u i t w i t h 3 nu mb e r s o f o u t p u ts p r o d uc e s a n o u t pu t al p h a b e t c o nta i n i n g 16 nu mb e r o f o u tp u t s e t s ( d ) A s e q u e nt i al c i r c u i t w i t h 3 nu mb e r s o f ou t p u t s p r o d u c e s an o u tp u t a l p h ab e t c o nt ai n i n g 4 nu mb e r of o u t pu t s e t s
DBDDA DCDAA BBBBD CBBCB
No comments:
Post a Comment