EBD21RD4ABNA
Byte No. Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value
Comments
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
0
0
0
0
0
0
0
0
0
0
1
1
0
1
1
1
1
0
1
0
0
1
0
0
0
0
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
1
1
0
0
1
0
1
0
1
0
0
0
1
1
0
0
1
0
0
0
1
0
0
1
1
31H
52H
44H
34H
41H
42H
4EH
41H
2DH
1
R
D
4
A
B
N
A
—
Module part number
-7A, -7B
86
0
0
0
0
0
1
1
1
0
1
1
0
0
0
0
1
0
0
1
0
0
1
1
1
37H
31H
41H
7
1
A
-10
Module part number
-7A
87
-7B
0
0
0
0
0
1
0
0
0
0
0
1
1
1
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
42H
30H
20H
30H
20H
B
-10
0
88 to 90
91
Module part number
Revision code
Revision code
(Space)
Initial
(Space)
92
Year code
(HEX)
Week code
(HEX)
93
Manufacturing date
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
×
××
××
94
Manufacturing date
2
95 to 98
Module serial number
*
99 to 127 Manufacturer specific data
Notes: 1. All serial PD data are not protected. 0: Serial data, “driven Low”, 1: Serial data, “driven High” These
SPD are based on JEDEC Committee Ballot JC-42.5-99-129.
2. Bytes 95 through 98 are assembly serial number.
3. These specifications are defined based on component specification, not module.
Preliminary Data Sheet E0273E20 (Ver. 2.0)
7
ELPIDA [ ELPIDA MEMORY ]
