JBL CINEMA VISION CVR700, Руководство по обслуживанию

Страница: 144 / 213

HY57V643220C
PIN CONFIGURATION
PIN DESCRIPTION
PIN PIN NAME DESCRIPTION
CLK Clock
The system clock input. All other inputs are registered to the SDRAM on the
rising edge of CLK.
CKE Clock Enable
Controls internal clock signal and when deactivated, the SDRAM will be one
of the states among power down, suspend or self refresh
CS Chip Select Enables or disables all inputs except CLK, CKE and DQM
BA0, BA1 Bank Address
Selects bank to be activated during RAS activity
Selects bank to be read/written during CAS activity
A0 ~ A10 Address
Row Address : RA0 ~ RA10, Column Address : CA0 ~ CA7
Auto-precharge flag : A10
RAS, CAS, WE
Row Address Strobe,
Column Address Strobe,
Write Enable
RAS, CAS and WE define the operation
Refer function truth table for details
DQM0~3 Data Input/Output Mask Controls output buffers in read mode and masks input data in write mode
DQ0 ~ DQ31 Data Input/Output Multiplexed data input / output pin
V
DD
/V
SS
Power Supply/Ground Power supply for internal circuits and input buffers
V
DDQ
/V
SSQ
Data Output Power/Ground Power supply for output buffers
NC No Connection No connection
V
D D
D Q 0
V
D D Q
D Q 1
D Q 2
V
S S Q
D Q 3
D Q 4
V
D D Q
D Q 5
D Q 6
V
S S Q
D Q 7
N C
V
D D
D Q M 0
/W E
/C A S
/R A S
/C S
N C
B A 0
B A 1
A 10/A P
A 0
A 1
A 2
D Q M 2
V
D D
N C
D Q 16
V
S S Q
D Q 17
D Q 18
V
D D Q
D Q 19
D Q 20
V
S S Q
D Q 21
D Q 22
V
D D Q
D Q 23
V
D D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43 V
S S
D Q 15
V
S S Q
D Q 14
D Q 13
V
D D Q
D Q 12
D Q 11
V
S S Q
D Q 10
D Q 9
V
D D Q
D Q 8
N C
V
S S
D Q M 1
N C
N C
C LK
C K E
A 9
A 8
A 7
A 6
A 5
A 4
A 3
D Q M 3
V
S S
N C
D Q 31
V
D D Q
D Q 30
D Q 29
V
S S Q
D Q 28
D Q 27
V
D D Q
D Q 26
D Q 25
V
S S Q
D Q 24
V
S S
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
8 6 pin T S O P II
4 0 0m il x 8 7 5 m il
0 .5 m m p in p itc h
Cinemavision CVR700
144
IC:24