Datasheet

DTM63368
2 GB - 256Mx72, 240-Pin Unbuffered ECC DDR2 DIMM
Document 06989, Revision A, 06-FEB-08, Dataram Corporation © 2008 Page 8
SERIAL PRESENCE DETECT MATRIX
Byte# Function. Value Hex
0 Number of Bytes Utilized by Module Manufacturer 128 bytes 0x80
1 Total number of Bytes in Serial PD device 256 bytes 0x08
2 Memory Type DDR2 SDRAM 0x08
3 Number of Row Addresses 14 0x0E
4 Number of Column Addresses 10 0x0A
5 Module Attributes - Number of Ranks, Package and Height 0x61
# of Ranks - 2
Card on Card - No
DRAM Package - Planar
Module Height - 30mm
6 Module Data Width. 72 0x48
7 Reserved UNUSED 0x00
8 Voltage Interface Level of this assembly SSTL/1.8V 0x05
9 SDRAM Cycle time. (Max. Supported CAS Latency). CL=X (tCK)
ns
2.5 0x25
10 SDRAM Access from Clock. (Highest CAS latency). (tAC) ns 0.4 0x40
11 DIMM configuration type (Non-parity, Parity or ECC) 0x02
Data Parity -
Data ECC - X
Address/Command Parity -
TBD -
TBD -
TBD -
TBD -
TBD -
12 Refresh Rate/Type (us) 7.8 (SR) 0x82
13 Primary SDRAM Width 8 0x08
14 Error Checking SDRAM Width 8 0x08
15 Reserved UNUSED 0x00
16 SDRAM Device Attributes: Burst Lengths Supported 0x0C
TBD -
TBD -
Burst Length = 4 - X
Burst Length = 8 - X
TBD -
TBD -
TBD -
TBD -
17 SDRAM Device Attributes - Number of Banks on SDRAM Device 8 0x08
18 SDRAM Device Attributes: CAS Latency 0x30
TBD -
TBD -
Latency = 2 -
Latency = 3 -