Internet Data Sheet
HYS72T[64/128/256]xx0HR–[3/3S/3.7/5]–A
Registered DDR2 SDRAM Modules
4
SPD Codes
This chapter lists all hexadecimal byte values stored in the EEPROM of the products described in this data sheet. SPD stands
for serial presence detect. All values with XX in the table are module specific bytes which are defined during production.
List of SPD Code Tables
•
•
•
•
•
•
•
Table 26 “SPD Codes for HYS64T[64/128/256]xx0HR–3–A” on Page 36
Table 27 “SPD Codes for HYS72T[64/128]0x0HR–3S–A” on Page 41
Table 28 “SPD Codes for HYS72T256xx0HR–3S–A” on Page 45
Table 29 “SPD Codes for HYS72T[64/128]0x0HR–3.7–A” on Page 49
Table 30 “SPD Codes for HYS72T256xx0HR–3.7–A” on Page 53
Table 31 “SPD Codes for HYS72T[64/128]0x0HR–5–A” on Page 57
Table 32 “SPD Codes for HYS72T256xx0HR–5–A” on Page 61
TABLE 26
SPD Codes for HYS64T[64/128/256]xx0HR–3–A
Product Type
Organization
512MB
1 GByte
1 GByte
2 GByte
×72
×72
×72
×72
1 Rank (×8) 1 Rank (×4) 2 Ranks (×8) 2 Ranks (×4)
Label Code
PC2– PC2– PC2– PC2–
5300R–444 5300R–444 5300R–444 5300R–444
JEDEC SPD Revision
Rev. 1.2
HEX
Rev. 1.2
HEX
Rev. 1.2
HEX
Rev. 1.2
HEX
Byte#
Description
0
1
2
3
4
5
6
7
8
9
Programmed SPD Bytes in EEPROM
Total number of Bytes in EEPROM
Memory Type (DDR2)
80
08
08
0E
0A
60
48
00
05
30
80
08
08
0E
0B
60
48
00
05
30
80
08
08
0E
0A
61
48
00
05
30
80
08
08
0E
0B
61
48
00
05
30
Number of Row Addresses
Number of Column Addresses
DIMM Rank and Stacking Information
Data Width
Not used
Interface Voltage Level
t
CK @ CLMAX (Byte 18) [ns]
Rev. 1.31, 2006-11
36
03292006-21GC-MK06
QIMONDA [ QIMONDA AG ]
