EBE10UE8ACFA Datasheet, PDF (5/29 Pages) Elpida Memory – 1GB Unbuffered DDR2 SDRAM DIMM

EBE10UE8ACFA
Serial PD Matrix
Byte No.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Function described
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 Hex value Comments
Number of bytes utilized by module
manufacturer
1
0
0
0
0
0
0
0
80H
Total number of bytes in serial PD
device
0
0
0
0
1
0
0
0
08H
Memory type
0 0 0 0 1 0 0 0 08H
128 bytes
256 bytes
DDR2 SDRAM
Number of row address
0 0 0 0 1 1 1 0 0EH
14
Number of column address
0 0 0 0 1 0 1 0 0AH
10
Number of DIMM ranks
0 1 1 0 0 0 0 0 60H
1
Module data width
0 1 0 0 0 0 0 0 40H
64
Module data width continuation
Voltage interface level of this
assembly
DDR SDRAM cycle time, CL = X
-8E (CL = 5)
-8G (CL = 6)
-6E (CL = 5)
SDRAM access from clock (tAC)
-8E, -8G
-6E
0 0 0 0 0 0 0 0 00H
0 0 0 0 0 1 0 1 05H
0 0 1 0 0 1 0 1 25H
0 0 1 0 0 1 0 1 25H
0 0 1 1 0 0 0 0 30H
0 1 0 0 0 0 0 0 40H
0 1 0 0 0 1 0 1 45H
0
SSTL 1.8V
2.5ns*¹
2.5ns*¹
3.0ns*¹
0.4ns*¹
0.45ns*¹
DIMM configuration type
0 0 0 0 0 0 0 0 00H
None
Refresh rate/type
1 0 0 0 0 0 1 0 82H
7.8µs
Primary SDRAM width
0 0 0 0 1 0 0 0 08H
×8
Error checking SDRAM width
0 0 0 0 0 0 0 0 00H
None
Reserved
0 0 0 0 0 0 0 0 00H
SDRAM device attributes:
Burst length supported
0 0 0 0 1 1 0 0 0CH
SDRAM device attributes: Number of
banks on SDRAM device
0
0
0
0
1
0
0
0
08H
SDRAM device attributes: /CAS
latency
0 0 1 1 1 0 0 0 38H
-8E, -6E
-8G
0 1 1 1 0 0 0 0 70H
0
4,8
8
3, 4, 5
4, 5, 6
DIMM Mechanical Characteristics 0 0 0 0 0 0 0 1 01H
4.00mm max.
DIMM type information
0 0 0 0 0 0 1 0 02H
Unbuffered
SDRAM module attributes
0 0 0 0 0 0 0 0 00H
SDRAM device attributes: General 0 0 0 0 0 0 1 1 03H
Minimum clock cycle time at
CL = X − 1
-8E, -6E (CL = 4)
0 0 1 1 1 1 0 1 3DH
-8G (CL = 5)
0 0 1 1 0 0 0 0 30H
Maximum data access time (tAC)
from clock at CL = X − 1
0 1 0 1 0 0 0 0 50H
-8E, -6E (CL = 4)
-8G (CL = 5)
0 1 0 0 0 1 0 1 45H
Minimum clock cycle time at
CL = X − 2
-8E, -6E (CL = 3)
0 1 0 1 0 0 0 0 50H
-8G (CL = 4)
0 0 1 1 1 1 0 1 3DH
Normal
Weak Driver
50Ω ODT Support
3.75ns*¹
3.0ns*¹
0.5ns*¹
0.45ns*¹
5.0ns*¹
3.75ns*¹
Data Sheet E1058E20 (Ver. 2.0)
5