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HB52RF649DC Datasheet, PDF (5/16 Pages) Elpida Memory – 512MB Unbuffered SDRAM S.O.DIMM | |||
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HB52RF649DC-B, HB52RD649DC-B
Byte No. Function described
SDRAM access from Clock (3rd
26
highest /CE latency)
Undefined
27
Minimum row precharge time
28
Row active to row active min
(-75)
(-A6)
29
/RE to /CE delay min
30
Minimum /RE pulse width
(-75)
(-A6)
31
Density of each bank on module
Address and command signal input
32
setup time
(-75)
(-A6)
Address and command signal input
33
hold time
(-75)
(-A6)
34
Data signal input setup time
(-75)
(-A6)
35
Data signal input hold time
(-75)
(-A6)
36 to 61 Superset information
62
SPD data revision code
63
Checksum for bytes 0 to 62
(-75)
(-A6)
64
Manufacturerâs JEDEC ID code
65 to 71 Manufacturerâs JEDEC ID code
72
Manufacturing location
73
Manufacturerâs part number
74
Manufacturerâs part number
75
Manufacturerâs part number
76
Manufacturerâs part number
77
Manufacturerâs part number
78
Manufacturerâs part number
(-75)
(-A6)
79
Manufacturerâs part number
80
Manufacturerâs part number
81
Manufacturerâs part number
82
Manufacturerâs part number
83
Manufacturerâs part number
84
Manufacturerâs part number
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value
0 0 0 0 0 0 0 0 00
0 0 0 1 0 1 0 0 14
0 0 0 0 1 1 1 1 0F
0 0 0 1 0 1 0 0 14
0 0 0 1 0 1 0 0 14
0 0 1 0 1 1 0 1 2D
0 0 1 1 0 0 1 0 32
0 1 0 0 0 0 0 0 40
0 0 0 1 0 1 0 1 15
0 0 1 0 0 0 0 0 20
0 0 0 0 1 0 0 0 08
0 0 0 1 0 0 0 0 10
0 0 0 1 0 1 0 1 15
0 0 1 0 0 0 0 0 20
0 0 0 0 1 0 0 0 08
0 0 0 1 0 0 0 0 10
0 0 0 0 0 0 0 0 00
0 0 0 1 0 0 1 0 12
0 1 0 1 1 1 0 1 5D
1 1 0 0 0 1 0 0 C4
0 0 0 0 0 1 1 1 07
0 0 0 0 0 0 0 0 00
à à à à à à à à ÃÃ
0 1 0 0 1 0 0 0 48
0 1 0 0 0 0 1 0 42
0 0 1 1 0 1 0 1 35
0 0 1 1 0 0 1 0 32
0 1 0 1 0 0 1 0 52
0 1 0 0 0 1 1 0 46
0 1 0 0 0 1 0 0 44
0 0 1 1 0 1 1 0 36
0 0 1 1 0 1 0 0 34
0 0 1 1 1 0 0 1 39
0 1 0 0 0 1 0 0 44
0 1 0 0 0 0 1 1 43
0 0 1 0 1 1 0 1 2D
Comments
20ns
15ns
20ns
20ns
45ns
50ns
256M byte
1.5ns
2.0ns
0.8ns
1.0ns
1.5ns
2.0ns
0.8ns
1.0ns
Future use
Rev. 1.2B
93
196
HITACHI
*2 (ASCII-8bit code)
H
B
5
2
R
F
D
6
4
9
D
C

Data Sheet E0223H30 (Ver. 3.0)
5
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