MT18LD472FG-5 X Micron, MT18LD472FG-5 X Datasheet
MT18LD472FG-5 X
Manufacturer Part Number
MT18LD472FG-5 X
Description
16Mb EDO - OBSOLETE
Manufacturer
Micron
Datasheet
1.MT18LD472FG-5_X.pdf
(29 pages)
OBSOLETE
DRAM
MODULE
FEATURES
• JEDEC-standard ECC pinout in a 168-pin, dual in-
• 16MB (2 Meg x 72) and 32MB (4 Meg x 72)
• High-performance CMOS silicon-gate process
• Single +3.3V ±0.3V power supply
• All inputs, outputs and clocks are TTL-compatible
• Refresh modes: RAS#-ONLY, CAS#-BEFORE- RAS#
• All inputs are buffered except RAS#
• 2,048 cycles (11 row, 11 column addresses) or
• FAST-PAGE-MODE (FPM) or Extended Data-Out
OPTIONS
• Package
• Timing
• Access Cycles
• Refresh
* EDO version only
KEY TIMING PARAMETERS
EDO Operating Mode
FPM Operating Mode
NOTE:
2, 4 Meg x 72 Buffered DRAM DIMMs
DM33.p65 – Rev. 2/99
SPEED
SPEED
line memory module (DIMM)
(CBR) and HIDDEN
4,096 cycles (12 row, 10 column addresses)
(EDO) PAGE MODE access cycles
168-pin DIMM (gold)
50ns access
60ns access
FAST PAGE MODE
EDO PAGE MODE
2,048 cycles across 32ms
4,096 cycles across 64ms (32MB only)
-5
-6
-6
Pin symbols in parentheses are not used on these modules but
may be used for other modules in this product family. They are
for reference only.
104ns
110ns
84ns
t
t
RC
RC
t
t
50ns
60ns
60ns
RAC
RAC
20ns
25ns
35ns
t
t
PC
PC
30ns
35ns
35ns
t
t
AA
AA
t
t
18ns
20ns
20ns
CAC
CAC
MARKING
None
None
-5*
-6
G
X
F
t
10ns
40ns
CAS
8ns
t
RP
1
MT9LD272(X), MT18LD472(F)(X)
For the latest data sheet, please refer to the Micron Web
site:
PIN SYMBOL PIN SYMBOL PIN SYMBOL PIN SYMBOL
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
1
2
3
4
5
6
7
8
9
www.micronsemi.com/datasheets/datasheet.html
NC (A12)
PIN ASSIGNMENT (Front View)
CAS0#
RAS0#
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ16
DQ17
WE0#
OE0#
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
RFU
RFU
RFU
A10
V
V
V
V
V
V
V
NC
NC
V
A0
A2
A4
A6
A8
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DD
DD
DD
DD
SS
SS
SS
SS
BUFFERED DRAM DIMMs
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
77
78
79
80
81
82
83
84
168-Pin DIMM
RAS2#
CAS4#
WE2#
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQ32
DQ33
DQ34
DQ35
OE2#
RFU
RFU
RFU
RFU
RFU
PD1
PD3
PD5
PD7
V
V
V
V
ID0
V
NC
NC
V
V
V
DD
DD
DD
DD
SS
SS
SS
SS
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
2, 4 MEG x 72
NC (A13)
DQ36
DQ37
DQ38
DQ39
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
RFU
RFU
RFU
RFU
V
V
V
A11
V
V
V
V
NC
NC
NC
NC
V
A1
A3
A5
A7
A9
B0
DD
DD
DD
DD
SS
SS
SS
SS
©1999, Micron Technology, Inc.
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
161
162
163
164
165
166
167
168
DQ54
DQ55
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
DQ64
DQ65
DQ66
DQ67
DQ68
DQ69
DQ70
DQ71
PDE#
RFU
RFU
RFU
RFU
RFU
RFU
PD2
PD4
PD6
PD8
V
V
V
V
V
NC
NC
NC
NC
V
V
V
ID1
DD
DD
DD
DD
SS
SS
SS
SS
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