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P2M648YL Schematic ( PDF Datasheet ) - SpecTek

Teilenummer P2M648YL
Beschreibung SDRAM Module
Hersteller SpecTek
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Gesamt 5 Seiten
P2M648YL Datasheet, Funktion
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SDRAM MODULE
P2M648YL, P4M6416YL
2M, 4M x 64 DIMM
Features:
JEDEC - Standard 168-pin (gold), 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.
Dual internal banks for hiding row access/precharge.
64ms 4096 cycle refresh.
All inputs, outputs, clocks LVTTL compatible.
Options:
8 - 2Mx8 SDRAM TSOP
16 - 2Mx8 SDRAM TSOP
Part Number:
P2M648YL-XX
P4M6416YL-XX
KEY DIMM MODULE TIMING PARAMETERS
Module
Component Clock CAS Latency
Marking Marking
Freq
-66CL2
-10/-12
66MHZ
2 or3
-100CL3A -8A
100MHZ
3
GENERAL DESCRIPTION
The S2M6408YL and S4M6416YL are high performance
dynamic random-access 16MB and 32MB modules
respectively. These modules are organized in a x64
configuration, and utilize dual 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 m
Stresses beyond these may cause permanent damage to
the device. This is a stress rating only and functional
PIN ASSIGNMENT (Front View)
168-PIN DIMM
Pin Name Pin Name
Pin Name Pin Name
1 Vss 43 Vss 85 Vss 127 Vss
2
DQ0
44
DU
86 DQ32 128 CKE0
3
DQ1
45
S2#
87
DQ33
129
S3#
4
DQ2
46 DQMB2
88
DQ34
130 DQMB6
5
DQ3
47 DQMB3
89
DQ35
131 DQMB7
6 Vcc 48 DU 90 Vcc 132 RFU
7
DQ4
49
Vcc
91
DQ36
133
Vcc
8
DQ5
50
NC
92
DQ37
134
NC
9
DQ6
51
NC
93
DQ38
135
NC
10 DQ7 52
NC
94
DQ39
136
NC
11 DQ8 53
NC
95
DQ40
137
NC
12 Vss 54 Vss
96 Vss 138 Vss
13 DQ9 55 DQ16 97 DQ41 139 DQ48
14 DQ10 56 DQ17
98 DQ42 140 DQ49
15 DQ11 57 DQ18
99 DQ43 141 DQ50
16 DQ12 58 DQ19 100 DQ44 142 DQ51
17 DQ13 59
Vcc
101 DQ45 143
Vcc
18 Vcc 60 DQ20 102 Vcc 144 DQ52
19 DQ14 61
NC
103 DQ46 145
NC
20 DQ15 62
NC
104 DQ47 146
NC
21 NC 63 CKE1 105 NC 147 NC
22 NC 64 Vss 106 NC 148 Vss
23 Vss 65 DQ21 107 Vss 149 DQ53
24 NC 66 DQ22 108 NC 150 DQ54
25 NC 67 DQ23 109 NC 151 DQ55
26 Vcc 68 Vss 110 Vcc 152 Vss
27 WE# 69 DQ24 111 CAS# 153 DQ56
28 DQMB0 70
DQ25
112 DQMB4 154
DQ57
29 QQMB1 71
DQ26
113 DQMB5 155
DQ58
30 SO# 72 DQ27 114 S1# 156 DQ59
31
DU
73
Vcc
115 RAS# 157
Vcc
32 Vss 74 DQ28 116 Vss 158 DQ60
33 A0 75 DQ29 117 A1 159 DQ61
34 A2 76 DQ30 118 A3 160 DQ62
35 A4 77 DQ31 119 A5 161 DQ63
36 A6 78 Vss 120 A7 162 Vss
37 A8 79 CK2 121 A9 163 CK3
38 A10/AP 80 NC 122 BA0 164 NC
39 RFU 81 NC 123 RFU 165 SA0
40 Vcc 82 SDA 124 Vcc 166 SA1
41 Vcc 83 SCL 125 CK1 167 SA2
42
CK0
84
Vcc
126
RFU
168
Vcc
operation of the device at or beyond these conditions is
not implied. Exposure to these conditions for extended
periods may affect reliability.
CAPACITANCE: (This parameter is sampled. VCC = +3.3V m 0.3V; f = 1 MHz)
Parameter
Symbol
Input Capacitance: A0 - A10, BAO, RAS#, CAS#, WE#,
Input Capacitance: S0#-S3#, CK0-CK3
Input Capacitance: CKE0, CKE1,
Input Capacitance: DQMB0#, DQMB7
Input Capacitance: SQL, SA0-SA2
Input/Output Capacitance: DQ0-DQ63, SDA
Cl1
Cl2
Cl3
Cl4
Cl5
CIO
Max
16MB 32MB
45 88
25 25
45 45
8 14
66
10 15
Units
pF
pF
pF
pF
pF
pF
__________________________________________________________________________________________________
P4M6416
1 SpecTek reserves the right to change products
Rev: 2/2/99
or specifications without notice. ©1999 SpecTek





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