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W3EG64255S202JD3XG Datasheet(PDF) 3 Page - White Electronic Designs Corporation

Part # W3EG64255S202JD3XG
Description  2GB - 2x128Mx64 DDR SDRAM REGISTERED, w/PLL
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Manufacturer  WEDC [White Electronic Designs Corporation]
Direct Link  http://www.whiteedc.com
Logo WEDC - White Electronic Designs Corporation

W3EG64255S202JD3XG Datasheet(HTML) 3 Page - White Electronic Designs Corporation

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W3EG64255S-JD3
3
White Electronic Designs
April 2005
Rev. 3
ADVANCED
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
FUNCTIONAL BLOCK DIAGRAM
RS0#
RRAS#
RA0-RA13
RCKE0
RCAS#
RBA0,RBA1
RS1#
RESET#
PCK#
PCK
A0-A13
WE#
CAS#
RAS#
BA0,BA1
S0#
CKE0
R
E
I
G
E
R
T
S
RCKE1
RWE#
BA0,BA1: DDR SDRAMs
A0-A13: DDR SDRAMs
RAS#: DDR SDRAMs
CAS#: DDR SDRAMs
WE#: DDR SDRAMs
CKE: DDR SDRAMs
CKE: DDR SDRAMs
S1#
CKE1
A0
SA0
WP
SCL
A1
A2
SA1
SA2
SDA
SERIAL PD
PLL
CK0
CK0#
REGISTER
SDRAM
VSS
VREF
VCC/VCCQ
VCCSPD
DDR SDRAMs
SPD
DDR SDRAMs
DDR SDRAMs
DQS2
DQS1
DQS0
DQS7
DQS6
DQS5
DQS4
DQS3
DQS11
DQ60
DQ56
I/O 3
DQ59
DQ58
DQ57
I/O 1
I/O 0
I/O 2
DQ63
DQ62
DQ61
DQ51
DQ50
DQ49
DQ48
DQ43
DQ42
DQ41
DQ40
DQS
DM
CS#
DQS
DM
CS#
DQS
DM
CS#
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
DQ35
DQ34
DQ33
DQ32
DQ27
DQ26
DQ25
DQ24
DQS
DM
CS#
DQS
DM
CS#
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
DQS13
DQS14
DQS15
DQ55
DQ54
DQ53
DQ52
DQ47
DQ46
DQ45
DQ44
DQS12
DQ39
DQ38
DQ37
DQ36
DQ31
DQ30
DQ29
DQ28
I/O 3
I/O 2
I/O 0
I/O 1
DM
DM
DM
DM
DM
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
DQS
DQS
DQS
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
DQS
DQS
DQ2
I/O 1
DQ18
DQ16
DQ17
DQ19
DQ11
DQ10
DQ9
DQ8
DQ3
DQS
DM
CS#
DQS
DM
CS#
I/O 0
I/O 1
I/O 0
I/O 3
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
DQ1
DQ0
CS#
DM
DQS
I/O 2
I/O 3
DQ6
DQS9
DQS10
DQ7
DQ20
DQ21
DQ22
DQ23
DQ15
DQ14
DQ13
DQ12
DQ1
DQ2
DQS8
DQ5
DQ4
DM
DM
DM
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
CS#
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 0
DQS
DQS
I/O 3
I/O 2
DQS
S0#
S1#
I/O 3
I/O 2
DQS
DM
CS#
I/O 0
I/O 1
CS#
DM
DQS
CS#
DM
DQS
CS#
DM
DQS
CS#
DM
DQS
CS#
DM
DQS
CS#
DM
DQS
CS#
DM
DQS
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 3
I/O 0
I/O 1
I/O 2
I/O 0
I/O 1
I/O 3
I/O 2
I/O 0
I/O 1
I/O 3
DM
DM
DM
DM
DM
DM
DM
DM
DQS
I/O 1
I/O 0
I/O 2
I/O 3
I/O 2
I/O 1
I/O 0
DQS
I/O 3
DQS
I/O 1
I/O 0
I/O 3
I/O 2
DQS
I/O 1
I/O 0
I/O 3
I/O 2
DQS
I/O 3
I/O 1
I/O 0
I/O 2
I/O 1
I/O 0
I/O 3
I/O 2
DQS
DQS
I/O 1
I/O 0
I/O 3
I/O 2
DQS
I/O 2
I/O 3
I/O 1
I/O 0
VSS
NOTE: All resistor values are 22 ohms unless otherwise specified
Notes:
1.
DQ-to-I/O wiring is shown as recommended but may be changed.
2.
DQ/DQS/DM/CKE/S relationships must be maintained as shown.


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