Internet Data Sheet
HYS64T256022EDL–[25F/2.5/3/3S/3.7]–B
Small Outline 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.
TABLE 23
SPD codes for HYS64T256022EDL–[25F/2.5/3/3S/3.7]–B
Product Type
Organization
2 GByte 2 GByte 2 GByte 2 GByte 2 GByte
×64
×64
×64
×64
×64
2 Ranks 2 Ranks 2 Ranks 2 Ranks 2 Ranks
(×8)
(×8)
(×8)
(×8)
(×8)
Label Code
PC2–
6400S–
555
PC2–
6400S–
666
PC2–
5300S–
444
PC2–
5300S–
555
PC2–
4200S–
444
JEDEC SPD Revision
Rev. 1.2 Rev. 1.2 Rev. 1.2 Rev. 1.2 Rev. 1.2
Byte#
Description
HEX
HEX
HEX
HEX
HEX
0
Programmed SPD Bytes in EEPROM
Total number of Bytes in EEPROM
Memory Type (DDR2)
80
08
08
0E
0A
71
40
00
05
25
40
00
82
08
00
80
08
08
0E
0A
71
40
00
05
25
40
00
82
08
00
80
08
08
0E
0A
71
40
00
05
30
45
00
82
08
00
80
08
08
0E
0A
71
40
00
05
30
45
00
82
08
00
80
08
08
0E
0A
71
40
00
05
3D
50
00
82
08
00
1
2
3
Number of Row Addresses
Number of Column Addresses
DIMM Rank and Stacking Information
Data Width
4
5
6
7
Not used
8
Interface Voltage Level
9
t
t
CK @ CLMAX (Byte 18) [ns]
10
11
12
13
14
AC SDRAM @ CLMAX (Byte 18) [ns]
Error Correction Support (non-ECC, ECC)
Refresh Rate and Type
Primary SDRAM Width
Error Checking SDRAM Width
Rev. 1.0, 2006-11
31
11172006-DXYK-2PPW