Denon AVR-2809CI

84
AVR-2809CI / AVR-2809 / AVR-989 / AVC-2809
IS42S32200E (DI : IC903)
Functional Block Diagram
VCC
I/O0
VCCQ
I/O1
I/O2
GNDQ
I/O3
I/O4
VCCQ
I/O5
I/O6
GNDQ
I/O7
NC
VCC
DQM0
WE
CAS
RAS
CS
NC
BA0
BA1
A10/AP
A0
A1
A2
DQM2
VCC
NC
I/O16
GNDQ
I/O17
I/O18
VCCQ
I/O19
I/O20
GNDQ
I/O21
I/O22
VCCQ
I/O23
VCC
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
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
GND
I/O15
GNDQ
I/O14
I/O13
VCCQ
I/O12
I/O11
GNDQ
I/O10
I/O9
VCCQ
I/O8
NC
GND
DQM1
NC
NC
CLK
CKE
A9
A8
A7
A6
A5
A4
A3
DQM3
GND
NC
I/O31
VCCQ
I/O30
I/O29
GNDQ
I/O28
I/O27
VCCQ
I/O26
I/O25
GNDQ
I/O24
GND
CLK
CKE
CS
RAS
CAS
WE
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
BA0
BA1
A10
COMMAND
DECODER
&
CLOCK
GENERATOR
MODE
REGISTER
REFRESH
CONTROLLER
REFRESH
COUNTER
SELF
REFRESH
CONTROLLER
ROW
ADDRESS
LATCH
MULTIPLEXER
COLUMN
ADDRESS LATCH
BURST COUNTER
COLUMN
ADDRESS BUFFER
COLUMN DECODER
DA TA IN
BUFFER
DA TA OUT
BUFFER
DQM0-3
I/O 0-31
Vcc/Vcc
Q
GND/GNDQ
10
10
10
10
32
32 32
32
256
(x 32)
2048
2048
2048
ROW DECODER
2048
MEMORY CELL
ARRAY
BANK 0
SENSE AMP I/O GATE
BANK CONTROL LOGIC
ROW
ADDRESS
BUFFER