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HB52E649E12 Datasheet, PDF (7/16 Pages) Elpida Memory – 512 MB Registered SDRAM DIMM 64-Mword × 72-bit, 100 MHz Memory Bus, 1-Bank Module (18 pcs of 64 M × 4 Components) PC100 SDRAM | |||
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HB52E649E12-A6B/B6B
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
77
Manufacturerâs part number
0 1 0 0 0 1 0 1 45
E
78
Manufacturerâs part number
0 0 1 1 0 1 1 0 36
6
79
Manufacturerâs part
0 0 1 1 0 1 0 0 34
4
80
Manufacturerâs part number
0 0 1 1 1 0 0 1 39
9
81
Manufacturerâs part number
0 1 0 0 0 1 0 1 45
E
82
Manufacturerâs part number
0 0 1 1 0 0 0 1 31
1
83
Manufacturerâs part number
0 0 1 1 0 0 1 0 32
2
84
Manufacturerâs part number
0 0 1 0 1 1 0 1 2D
â
85
Manufacturerâs part number
0 1 0 0 0 0 0 1 41
A
(-A6B)
(-B6B)
0 1 0 0 0 0 1 0 42
B
86
Manufacturerâs part number
0 0 1 1 0 1 1 0 36
6
87
Manufacturerâs part number
0 1 0 0 0 0 1 0 42
B
88
Manufacturerâs part number
0 0 1 0 0 0 0 0 20
(Space)
89
Manufacturerâs part number
0 0 1 0 0 0 0 0 20
(Space)
90
Manufacturerâs part number
0 0 1 0 0 0 0 0 20
(Space)
91
Revision code
0 0 1 1 0 0 0 0 30
Initial
92
Revision code
0 0 1 0 0 0 0 0 20
(Space)
93
Manufacturing date
à à à à à à à à ÃÃ
Year code
(BCD)*4
94
Manufacturing date
à à à à à à à à ÃÃ
Week code
(BCD)*4
95 to 98 Assembly serial number
*6
99 to 125 Manufacturer specific data
âââââââââ
*5
126
Intel specification frequency
0 1 1 0 0 1 0 0 64
100 MHz
127
Intel specification CE#
latency support
(-A6B)
1 0 0 0 0 1 1 1 87
CL = 2/3
(-B6B)
1 0 0 0 0 1 0 1 85
CL = 3
Notes: 1. All serial PD data are not protected. 0: Serial data, âdriven Lowâ, 1: Serial data, âdriven Highâ
These SPD are based on Intel specification (Rev.1.2A).
2. Regarding byte32 to 35, based on JEDEC Committee Ballot JC42.5-97-119.
3. Byte72 is manufacturing location code. (ex: In case of Japan, byte72 is 4AH. 4AH shows âJâ on
ASCII code.)
4. Regarding byte93 and 94, based on JEDEC Committee Ballot JC42.5-97-135. BCD is âBinary
Coded Decimalâ.
5. All bits of 99 through 125 are not defined (â1â or â0â).
6. Bytes 95 through 98 are assembly serial number.
7. These specifications are defined based on component specification, not module.
Data Sheet E0020H20
7
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