EBE25UC8AAFV
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value
Comments
15ns*1
36
37
Write recovery time (tWR)
Internal write to read command delay
(tWTR)
0
0
0
0
1
0
1
1
1
1
1
1
0
1
0
0
3CH
1EH
7.5ns*1
Internal read to precharge command
delay (tRTP)
38
0
0
0
1
1
1
1
0
1EH
7.5ns*1
39
40
41
Memory analysis probe characteristics 0
0
0
0
0
0
1
0
0
1
0
0
1
0
0
1
0
0
0
0
0
0
00H
00H
3CH
TBD
Extension of Byte 41 and 42
Active command period (tRC)
0
0
Undefined
60ns*1
Auto refresh to active/
42
0
1
0
0
1
0
1
1
4BH
75ns*1
Auto refresh command cycle (tRFC)
43
SDRAM tCK cycle max. (tCK max.)
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
1
0
0
1
1
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
0
0
80H
1EH
28H
00H
00H
10H
82H
8ns*1
44
Dout to DQS skew
0.30ns*1
0.40ns*1
Undefined
45
Data hold skew (tQHS)
PLL relock time
46
47 to 61
62
SPD Revision
Rev. 1.0
63
Checksum for bytes 0 to 62
Continuation
code
64 to 65
Manufacturer’s JEDEC ID code
0
1
1
1
1
1
1
1
7FH
66
Manufacturer’s JEDEC ID code
Manufacturer’s JEDEC ID code
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
FEH
00H
Elpida Memory
67 to 71
(ASCII-8bit
code)
72
Manufacturing location
×
×
×
×
×
×
×
×
××
73
74
75
76
77
78
79
80
81
82
83
84
85
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
Module part number
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
1
1
0
1
1
1
1
0
0
0
0
1
1
0
0
1
0
0
0
0
1
0
0
0
1
1
1
0
1
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
0
1
0
1
1
0
0
0
0
1
1
1
0
1
0
1
0
0
1
0
0
0
1
1
0
1
0
1
0
1
1
1
0
1
1
0
0
1
45H
42H
45H
32H
35H
55H
43H
38H
41H
41H
46H
56H
2DH
E
B
E
2
5
U
C
8
A
A
F
V
—
Module part number
-DF
86
0
1
0
0
0
1
0
0
44H
D
-BE
0
0
1
1
0
0
0
0
0
0
0
0
1
0
0
1
42H
41H
B
A
-AE
Module part number
-DF
-BE
87
88
0
1
0
0
0
1
1
0
46H
F
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
1
1
1
0
0
0
1
1
1
45H
45H
2DH
E
-AE
E
Module part number
—
Preliminary Data Sheet E0527E12 (Ver. 1.2)
6
ELPIDA [ ELPIDA MEMORY ]
