EBE11ED8AJWA Datasheet PDF - Elpida Memory
| Part Number | EBE11ED8AJWA | |
| Description | 1GB Unbuffered DDR2 SDRAM DIMM | |
| Manufacturers | Elpida Memory | |
| Logo |  |
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DATA SHEET
www.DataSheet4U.com
1GB Unbuffered DDR2 SDRAM DIMM
EBE11ED8AJWA (128M words × 72 bits, 2 Ranks)
Specifications
• Density: 1GB
• Organization
128M words × 72 bits, 2 ranks
• Mounting 18 pieces of 512M bits DDR2 SDRAM
sealed in FBGA
• Package: 240-pin socket type dual in line memory
module (DIMM)
PCB height: 30.0mm
Lead pitch: 1.0mm
Lead-free (RoHS compliant)
• Power supply: VDD = 1.8V ± 0.1V
• Data rate: 800Mbps/667Mbps (max.)
• Four internal banks for concurrent operation
(components)
• Interface: SSTL_18
• Burst lengths (BL): 4, 8
• /CAS Latency (CL): 3, 4, 5, 6
• Precharge: auto precharge option for each burst
access
• Refresh: auto-refresh, self-refresh
• Refresh cycles: 8192 cycles/64ms
Average refresh period
7.8µs at 0°C ≤ TC ≤ +85°C
3.9µs at +85°C < TC ≤ +95°C
• Operating case temperature range
TC = 0°C to +95°C
Features
• Double-data-rate architecture; two data transfers per
clock cycle
• The high-speed data transfer is realized by the 4 bits
prefetch pipelined architecture
• Bi-directional differential data strobe (DQS and /DQS)
is transmitted/received with data for capturing data at
the receiver
• DQS is edge-aligned with data for READs; center-
aligned with data for WRITEs
• Differential clock inputs (CK and /CK)
• DLL aligns DQ and DQS transitions with CK
transitions
• Commands entered on each positive CK edge; data
and data mask referenced to both edges of DQS
• Data mask (DM) for write data
• Posted /CAS by programmable additive latency for
better command and data bus efficiency
• Off-Chip-Driver Impedance Adjustment and On-Die-
Termination for better signal quality
• /DQS can be disabled for single-ended Data Strobe
operation
Document No. E1054E30 (Ver. 3.0)
Date Published April 2008 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2007-2008
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EBE11ED8AJWA
Serial PD Matrix
www.DataSheet4U.com
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
10
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 1 61H
2
Module data width
0 1 0 0 1 0 0 0 48H
72
Module data width continuation
0 0 0 0 0 0 0 0 00H
0
Voltage interface level of this assembly 0 0 0 0 0 1 0 1 05H
DDR SDRAM cycle time, CL = X
-8E (CL = 5)
0 0 1 0 0 1 0 1 25H
-8G (CL = 6)
0 0 1 0 0 1 0 1 25H
-6E (CL = 5)
0 0 1 1 0 0 0 0 30H
SDRAM access from clock (tAC)
-8E, -8G
0 1 0 0 0 0 0 0 40H
-6E 0 1 0 0 0 1 0 1 45H
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 1 0 02H
ECC
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 1 0 0 0 08H
×8
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
0
1
0
0
04H
SDRAM device attributes:
/CAS latency
-8E, -6E
0 0 1 1 1 0 0 0 38H
-8G 0 1 1 1 0 0 0 0 70H
0
4,8
4
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
-8E, -6E (CL = 4)
time at
CL =
X
−1
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
-8E, -6E (CL = 3)
time at
CL =
X
−2
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 E1054E30 (Ver. 3.0)
5
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| Information | Total 29 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
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