Onkyo DV-SP302, Service Manual

Page: 40 / 69

DV-SP302
IC BLOCK DIAGRAM/ TERMINAL DESCRIPTION
IC9 : HY57V641620HG D RAM-(1)
PIN CONFIGURATION
PIN DESCRIPTION
P I N P I N N A M E D E S C R I P T I O N
C L K C l o c k
T h e s y s t e m c l o c k i n p u t . A l l o t h e r i n p u t s a r e r e g i s t e r e d t o t h e S D R A M o n t h e
r i s i n g e d g e o f C L K
C K E C l o c k E n a b l e
C o n t r o l s i n t e r n a l c l o c k s i g n a l a n d w h e n d e a c t i v a t e d , t h e S D R A M w i l l b e o n e
o f t h e s t a t e s a m o n g p o w e r d o w n , s u s p e n d o r s e l f r e f r e s h
C S C h i p S e l e c t E n a b l e s o r d i s a b l e s a l l i n p u t s e x c e p t C L K , C K E a n d D Q M
B A 0 , B A 1 B a n k A d d r e s s
S e l e c t s b a n k t o b e a c t i v a t e d d u r i n g R A S activity
S e l e c t s b a n k t o b e r e a d / w r i t t e n d u r i n g C A S activity
A 0 ~ A 1 1 A d d r e s s
R o w A d d r e s s : R A 0 ~ R A 1 1 , C o l u m n A d d r e s s : C A 0 ~ C A 7
A u t o - p r e c h a r g e f l a g : A 1 0
R A S , C A S, W E
R o w A d d r e s s S t r o b e ,
C o l u m n A d d r e s s S t r o b e ,
W r i t e E n a b l e
R A S , C A S a n d W E d e f i n e t h e o p e r a t i o n
R e f e r f u n c t i o n t r u t h t a b l e f o r d e t a i l s
L D Q M , U D Q M D a t a I n p u t / O u t p u t M a s k C o n t r o l s o u t p u t b u f f e r s i n r e a d m o d e a n d m a s k s i n p u t d a t a i n w r i t e m o d e
D Q 0 ~ D Q 1 5 D a t a I n p u t / O u t p u t M u l t i p l e x e d d a t a i n p u t / o u t p u t p i n
V
D D
/V
S S
P o w e r S u p p l y / G r o u n d P o w e r s u p p l y f o r i n t e r n a l c i r c u i t s a n d i n p u t b u f f e r s
V
D D Q
/V
S S Q
D a t a O u t p u t P o w e r / G r o u n d P o w e r s u p p l y f o r o u t p u t b u f f e r s
N C N o C o n n e c t i o n N o c o n n e c t i o n
V SS
D Q 1 5
V SSQ
D Q 1 4
D Q 1 3
V DDQ
D Q 1 2
D Q 1 1
V SSQ
D Q 1 0
DQ9
V DDQ
DQ8
V SS
N C
UDQM
CLK
CKE
N C
A11
A 9
A 8
A 7
A 6
A 5
A 4
V SS 1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
2 7 5 4
5 3
5 2
5 1
5 0
4 9
4 8
4 7
4 6
4 5
4 4
4 3
4 2
4 1
4 0
3 9
3 8
3 7
3 6
3 5
3 4
3 3
3 2
3 1
3 0
2 9
2 8 VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
L D Q M
/ W E
/CAS
/RAS
/ C S
BA0
BA1
A10/AP
A 0
A 1
A 2
A 3
VDD
54pin TSOP II
400mil x 875mil
0.8mm pin pitch