Document
MOSEL VITELIC
V437464C24V 3.3 VOLT 64M x 72 HIGH PERFORMANCE PC133 REGISTERED PLL ECC SDRAM MODULE
Description
PRELIMINARY
Features
s 168 Pin Registered ECC 67,108,864 x 72 bit Oganization SDRAM Modules s Utilizes High Performance 64M x 4 SDRAM in TSOPII-54 Packages s Fully PC Board Layout Compatible to INTEL’S Rev 1.2 Module Specification s Single +3.3V (± 0.3V) Power Supply s Programmable CAS Latency, Burst Length, and Wrap Sequence (Sequential & Interleave) s Auto Refresh (CBR) and Self Refresh s All Inputs, Outputs are LVTTL Compatible s 8192 Refresh Cycles every 64 ms s Serial Present Detect (SPD) s SDRAM Performance
Key Component Timing Parameters
tCK tAC tAC Clock Frequency (max.) Clock Access Time CAS Latency = 3 Clock Access Time CAS Latency = 2
The V437464C24V memory module is organized 67,108,864 x 72 bits in a 168 pin dual in line memory module (DIMM). The 64M x 72 registered DIMM uses 18 Mosel-Vitelic 64M x 4 ECC SDRAM. The x72 registered modules are ideal for use in high performance computer systems where increased memory density and fast access times are required.
-7PC
143 5.4 5.4
-7
143 5.4 6
-8PC
125 6 6
Units
MHz ns ns
s Module Frequency vs AC Parameter
Frequency
V437464C24V 133 MHz (PC) V437464C24V 133 MHz V437464C24V 100 MHz (PC)
CL (CAS Latency)
2
tRCD
2
tRP
2
tRC
8
Unit
CLK
3
3
3
8
CLK
2
2
2
7
CLK
V437464C24V Rev.1.0 January 2002
1
MOSEL VITELIC
Pin Configurations (Front Side/Back Side)
Pin 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 Front VSS I/O1 I/O2 I/O3 I/O4 VCC I/O5 I/O6 I/O7 I/O8 I/O9 VSS I/O10 I/O11 I/O12 I/O13 I/O14 VCC I/O15 I/O16 CBO CB1 VSS NC NC VCC WE DQM0 Pin 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 Front DQM1 CS0 DU VSS A0 A2 A4 A6 A8 A10(AP) BA1 VCC VCC CLK0 VSS DU CS2 DQM2 DQM3 DU VCC NC NC CB2 CB3 VSS I/O17 I/O18 Pin 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 Front I/O19 I/O20 VCC I/O21 NC DU CKE1* VSS I/O22 I/O23 I/O24 VSS I/O25 I/O26 I/O27 I/O28 VCC I/O29 I/O30 I/O31 I/O32 VSS CLK2* NC WP SDA SCL VCC Pin 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 Back VSS I/O33 I/O34 I/O35 I/O36 VCC I/O37 I/O38 I/O39 I/O40 I/O41 VSS I/O42 I/O43 I/O44 I/O45 I/O46 VCC I/O47 I/O48 CB4 CB5 VSS NC NC VCC CAS DQM4 Pin 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 Back DQM5 CS1 RAS VSS A1 A3 A5 A7 A9 BA0 A11 VCC CLK1* A12 VSS CKE0 CS3 DQM6 DQM7 DU VCC NC NC CB6 CB7 VSS I/O49 I/O50
V437464C24V
Pin 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 Back I/O51 I/O52 VCC I/O53 NC DU REGE VSS I/O54 I/O55 I/O56 VSS I/O57 I/O58 I/O59 I/O60 VCC I/O61 I/O62 I/O63 I/O64 VSS CLK3* NC SA0 SA1 SA2 VCC
Notes:
* These pins are not used in this module.
Pin Names
A0–A12 I/O1–I/O64 RAS CAS WE BA0, BA1 CKE0 CS0, CS2 CLK0–CLK3 .