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HB56D473EJ-7 PDF даташит

Спецификация HB56D473EJ-7 изготовлена ​​​​«Hitachi Semiconductor» и имеет функцию, называемую «High Density Dynamic RAM Module».

Детали детали

Номер произв HB56D473EJ-7
Описание High Density Dynamic RAM Module
Производители Hitachi Semiconductor
логотип Hitachi Semiconductor логотип 

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HB56D473EJ-7 Даташит, Описание, Даташиты
HB56D473EJ Series
4,194,304-word × 72-bit High Density Dynamic RAM Module
ADE-203-725A (Z)
Rev. 1.0
Feb. 27, 1997
Description
The HB56D473EJ belongs to 8 Byte DIMM (Dual In-line Memory Module) family, and has been
developed as an optimized main memory solution for 4 and 8 Byte processor applications. The
HB56D473EJ is a 4M × 72 dynamic RAM module, mounted 16 pieces of 16-Mbit DRAM (HM5117400)
sealed in SOJ package and 8 pieces of 4-Mbit DRAM (HM514100) sealed in SOJ package, 1 pieces of 16-
bit BiCMOS line driver (74ABT16244) sealed in TSSOP package and 1 pieces of 20-bit BiCMOS line
driver (74ABT16827) sealed in TSSOP package. An outline of the HB56D473EJ is 168-pin socket type
package (dual lead out). Therefore, the HB56D473EJ makes high density mounting possible without
surface mount technology. The HB56D473EJ provides common data inputs and outputs. Decoupling
capacitors are mounted on the module board.
Features
168-pin socket type package (Dual lead out)
Outline: 133.35 mm (Length) × 25.40 mm (Height) × 9.00 mm (Thickness)
Lead pitch: 1.27 mm
Single 5 V (±5%) supply
High speed
Access time: tRAC = 60/70 ns (max)
tCAC = 20/25 ns (max)
Low power dissipation
Active mode: 12.5/11.3 W (max)
Standby mode (TTL): 588 mW (max)
(CMOS): 462 mW (max)
Buffered input except RAS and DQ
4 byte interleave enabled, dual address input (A0/B0)
JEDEC standard outline buffered 8-byte DIMM
Fast page mode capability
2,048 refresh cycles: 32 ms









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HB56D473EJ-7 Даташит, Описание, Даташиты
HB56D473EJ Series
2 variations of refresh
RAS-only refresh
CAS-before-RAS refresh
TTL compatible
Ordering Information
Type No.
HB56D473EJ-6
HB56D473EJ-7
Access time
60 ns
70 ns
Package
168-pin dual lead out socket type
Contact pad
Gold
Pin Arrangement
Front side
Back side
1 pin 10 pin 11 pin
85 pin 94 pin 95 pin
40 pin 41 pin
124 pin 125 pin
84 pin
168 pin









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HB56D473EJ-7 Даташит, Описание, Даташиты
Pin Arrangement
Pin No.
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
Pin name
VSS
DQ0
DQ1
DQ2
DQ3
VCC
DQ4
DQ5
DQ6
DQ7
DQ8
VSS
DQ9
DQ10
DQ11
DQ12
DQ13
VCC
DQ14
DQ15
DQ16
DQ17
VSS
NC
NC
VCC
WE0
CE0
CE2
RE0
OE0
VSS
A0
A2
Pin No.
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
Pin name
VSS
OE2
RE2
CE4
CE6
WE2
VCC
NC
NC
DQ18
DQ19
VSS
DQ20
DQ21
DQ22
DQ23
VCC
DQ24
NC
NC
NC
NC
DQ25
DQ26
DQ27
VSS
DQ28
DQ29
DQ30
DQ31
VCC
DQ32
DQ33
DQ34
HB56D473EJ Series
Pin No.
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
Pin name
VSS
DQ36
DQ37
DQ38
DQ39
VCC
DQ40
DQ41
DQ42
DQ43
DQ44
VSS
DQ45
DQ46
DQ47
DQ48
DQ49
VCC
DQ50
DQ51
DQ52
DQ53
VSS
NC
NC
VCC
NC
CE1
CE3
NC
NC
VSS
A1
A3
Pin No.
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
Pin name
VSS
NC
NC
CE5
CE7
PDE
VCC
NC
NC
DQ54
DQ55
VSS
DQ56
DQ57
DQ58
DQ59
VCC
DQ60
NC
NC
NC
NC
DQ61
DQ62
DQ63
VSS
DQ64
DQ65
DQ66
DQ67
VCC
DQ68
DQ69
DQ70










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Номер в каталогеОписаниеПроизводители
HB56D473EJ-6High Density Dynamic RAM ModuleHitachi Semiconductor
Hitachi Semiconductor
HB56D473EJ-7High Density Dynamic RAM ModuleHitachi Semiconductor
Hitachi Semiconductor

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