P8M6412YLG Datasheet PDF - SpecTek
| Part Number | P8M6412YLG | |
| Description | (P8M646YLG / P8M6412YLG) 8M/16M x 64 DIMM SDRAM Module | |
| Manufacturers | SpecTek | |
| Logo |  |
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P8M646YLG, P16M6412YLG
SDRAM MODULE
Features:
• PC-100 and PC133 Compatible
• JEDEC – Standard 168-pin , dual in-line memory
Module (DIMM)
• TSOP components.
• Single 3.3v +.3v power supply.
• Nonbuffered fully synchronous; all signals measured
on positive edge of system clock.
• Internal pipelined operation; column address can be
changed every clock cycle.
• Quad internal banks for hiding row access/precharge.
• 64ms 4096 cycle refresh.
• All inputs, outputs, clocks LVTTL compatible.
Options:
6 - 8Mx12 SDRAM TSOP
12 - 8Mx12 SDRAM TSOP
Part Number:
P8M646YLG-XX
P16M6412YLG-XX
KEY DIMM MODULE TIMING PARAMETERS
Module Component Clock
CAS
Marking Marking
Frequency Latency
-100CL3
-8A
100MHz
3
-133CL3
-75A
133MHz
3
GENERAL DESCRIPTION
The P8M646YLG, P16M6412YLG, are high
performance dynamic random-access 64MB and 128MB
modules respectively. These modules are organized in a
x64 configuration, and utilize quad bank architecture with a
synchronous interface. All signals are registered on the
positive edge of the clock signals CK0 through CK3. Read
and write accesses to the SDRAM are burst oriented;
accesses start at a location and continue for a
programmed number of locations in a sequence.
Accesses begin with an ACTIVE command, which is
followed by a READ or WRITE command.
_______________________________________________
_
ABSOLUTE MAXIMUM RATINGS:
Voltage on Vcc Supply relative to Vss ............. -1 to +4.6V
Operating Temperature TA (Ambient) ......... 25 ° to +70 °C
Storage Temperature.................................... -55 to +125 °
Power Dissipation…………………………………………8 W
Short Circuit Output Current…………………………..50 mA
8M, 16M x 64 DIMM
PIN ASSIGNMENT (Front View)
168-Pin DIMM
PIN SYMBOL
PIN SYMBOL
PIN
SYMBOL
1 Vss
43 Vss
85 Vss
2 DQ0
44 DU
86 DQ32
3 DQ1
45 S2#
87 DQ33
4 DQ2
46 DQMB2 88
DQ34
5 DQ3
47 DQMB3 89
DQ35
6 Vcc
48 DU
90 Vcc
7 DQ4
49 Vcc
91 DQ36
8 DQ5
50 NC
92 DQ37
9 DQ6
51 NC
93 DQ38
10 DQ7
52 NC
94 DQ39
11 DQ8
53 NC
95 DQ40
12 Vss
54 Vss
96 Vss
13 DQ9
55 DQ16
97 DQ41
14 DQ10
56 DQ17
98 DQ42
15 DQ11
57 DQ18
99 DQ43
16 DQ12
58 DQ19
100 DQ44
17 DQ13
59 Vcc
101 DQ45
18 Vcc
60 DQ20
102 Vcc
19 DQ14
61 NC
103 DQ46
20 DQ15
21 NC
22 NC
23 Vss
24 NC
25 NC
26 Vcc
27 WE#
62 NC
63 CKE1*
64 Vss
65 DQ21
66 DQ22
67 DQ23
68 Vss
69 DQ24
104 DQ47
105 NC
106 NC
107 Vss
108 NC
109 NC
110 Vcc
111 CAS#
28 DQMB0 70 DQ25
112 DQMB4
29 DQMB1 71 DQ26
113 DQMB5
30 S0#
72 DQ27
114 S1#*
31 DU
73 Vcc
115 RAS#
32 Vss
74 DQ28
116 Vss
33 A0
75 DQ29
117 A1
34 A2
76 DQ30
118 A3
35 A4
77 DQ31
119 A5
36 A6
78 Vss
120 A7
37 A8
79 CK2
121 A9
38 A10
80 NC
122 BA0
39 BA1
81 WP
123 A11
40 Vcc
82 SDA
124 Vcc
41 Vcc
42 CK0
83 SCL
84 Vcc
125 CK1
126 RFU
*128Mb version only
PIN SYMBOL
127 Vss
128 CKEO
129 S3#*
130 DQMB6
131 DQMB7
132 RFU
133 Vcc
134 NC
135 NC
136 NC
137 NC
138 Vss
139 DQ48
140 DQ49
141 DQ50
142 DQ51
143 Vcc
144 DQ52
145 NC
146 NC
147 NC
148 Vss
149 DQ53
150 DQ54
151 DQ55
152 Vss
153 DQ56
154 DQ57
155 DQ58
156 DQ59
157 Vcc
158 DQ60
159 DQ61
160 DQ62
161 DQ63
162 Vss
163 CK3
164 NC
165 SA0
166 SA1
167 SA2
168 Vcc
Stresses beyond these may cause permanent damage to
the device. This is a stress rating only and functional
operation of the device at or beyond these conditions is
not implied. Exposure to these conditions for extended
periods may affect reliability.
__________________________________________________________________________________________________
P8M646YLG, P16M6412YLG
1 SpecTek reserves the right to change products
or specifications without notice. 1999 SpecTek
Rev: 5/17/01
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P8M646YLG, P16M6412YLG
SCL
SDA
SCL
DATA STABLE
DATA CHANGE
DATA STABLE
Figure 1
DATA VALIDITY
SDA
START
BIT
Figure 2
DEFINITION OF START
AND STOP
STOP
BIT
SCL from
Master
Data Output
from Transmitter
Data Output
from Receiver
89
Figure 3
ACKNOWLEDGE RESPONSE
FROM RECEIVER
Acknowledge
__________________________________________________________________________________________________
P8M646YLG, P16M6412YLG
5 SpecTek reserves the right to change products
or specifications without notice. 1999 SpecTek
Rev: 5/17/01
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| Link URL | [ Copy URL to Clipboard ] | |
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