|
|
Número de pieza | EBE51AD8AJFA | |
Descripción | 512MB Registered DDR2 SDRAM DIMM | |
Fabricantes | Elpida Memory | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de EBE51AD8AJFA (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
No Preview Available ! DATA SHEET
www.DataSheet4U.com
512MB Registered DDR2 SDRAM DIMM
EBE51AD8AJFA (64M words × 72 bits, 1 Rank)
Specifications
Features
• Density: 512MB
• Organization
64M words × 72 bits, 1 rank
• Mounting 9 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: 667Mbps (max.)
• Four internal banks for concurrent operation
(components)
• Interface: SSTL_18
• Burst lengths (BL): 4, 8
• /CAS Latency (CL): 3, 4, 5
• 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
• 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
• 1 piece of PLL clock driver, 1 piece of register driver
and 1 piece of serial EEPROM (2K bits EEPROM) for
Presence Detect (PD)
Document No. E1037E30 (Ver. 3.0)
Date Published March 2008 (K) Japan
Printed in Japan
URL: http://www.elpida.com
Elpida Memory, Inc. 2007-2008
1 page EBE51AD8AJFA
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
26
27
28
29
30
31
32
33
34
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 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 = 5
0 0 1 1 0 0 0 0 30H
SDRAM access from clock (tAC)
0 1 0 0 0 1 0 1 45H
DIMM configuration type
0 0 0 0 0 1 1 0 06H
Refresh rate/type
1 0 0 0 0 0 1 0 82H
SSTL 1.8V
3.0ns*1
0.45ns*1
ECC, Address/
Command Parity
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
0 0 1 1 1 0 0 0 38H
DIMM Mechanical Characteristics
0 0 0 0 0 0 0 1 01H
0
4,8
4
3, 4, 5
4.00mm max.
DIMM type information
0 0 0 0 0 0 0 1 01H
Registered
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 = 4 0 0 1 1 1 1 0 1 3DH
Maximum data access time (tAC) from
clock at CL = 4
0
1
0
1
0
0
0
0
50H
Minimum clock cycle time at CL = 3 0 1 0 1 0 0 0 0 50H
Maximum data access time (tAC) from
clock at CL = 3
0
1
1
0
0
0
0
0
60H
Minimum row precharge time (tRP) 0 0 1 1 1 1 0 0 3CH
Normal
Weak Driver
50Ω ODT
Support
3.75ns*1
0.5ns*1
5.0ns*1
0.6ns*1
15ns
Minimum row active to row active
delay (tRRD)
0 0 0 1 1 1 1 0 1EH
Minimum /RAS to /CAS delay (tRCD) 0 0 1 1 1 1 0 0 3CH
7.5ns
15ns
Minimum active to precharge time
(tRAS)
0 0 1 0 1 1 0 1 2DH
Module rank density
1 0 0 0 0 0 0 0 80H
Address and command setup time
before clock (tIS)
0 0 1 0 0 0 0 0 20H
Address and command hold time after
clock (tIH)
0
0
1
0
0
1
1
1
27H
Data input setup time before clock
(tDS)
0 0 0 1 0 0 0 0 10H
45ns
512M byte
0.20ns*1
0.27ns*1
0.10ns*1
Data Sheet E1037E30 (Ver. 3.0)
5
5 Page EBE51AD8AJFA
AC Overshoot/Undershoot Specification (DDR2 SDRAM Component Specification)
www.DataSheet4U.com
Parameter
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above VDD
DDR2-667
Maximum undershoot area below VSS
DDR2-667
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above VDD
DDR2-667
Maximum undershoot area below VSS
DDR2-667
Maximum peak amplitude allowed for overshoot
Maximum peak amplitude allowed for undershoot
Maximum overshoot area above VDDQ
DDR2-667
Maximum undershoot area below VSSQ
DDR2-667
Pins
Command, Address,
CKE, ODT
CK, /CK
DQ, DQS, /DQS,
UDQS, /UDQS,
LDQS, /LDQS,
RDQS, /RDQS,
DM, UDM, LDM
Specification
0.5
0.5
0.8
0.8
0.5
0.5
0.23
0.23
0.5
0.5
0.23
0.23
Unit
V
V
V-ns
V-ns
V
V
V-ns
V-ns
V
V
V-ns
V-ns
Volts (V) VDD, VDDQ
VSS, VSSQ
Maximum amplitude
Overshoot area
Undershoot area
Time (ns)
Overshoot/Undershoot Definition
Data Sheet E1037E30 (Ver. 3.0)
11
11 Page |
Páginas | Total 28 Páginas | |
PDF Descargar | [ Datasheet EBE51AD8AJFA.PDF ] |
Número de pieza | Descripción | Fabricantes |
EBE51AD8AJFA | 512MB Registered DDR2 SDRAM DIMM | Elpida Memory |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |