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W3DG72256V10D2 Datasheet(PDF) 2 Page - White Electronic Designs Corporation

Part # W3DG72256V10D2
Description  2GB - 256Mx72 SDRAM, REGISTER and SPD, w/PLL
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Manufacturer  WEDC [White Electronic Designs Corporation]
Direct Link  http://www.whiteedc.com
Logo WEDC - White Electronic Designs Corporation

W3DG72256V10D2 Datasheet(HTML) 2 Page - White Electronic Designs Corporation

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W3DG72256V-D2
2
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
White Electronic Designs
August 2005
Rev. 3
FUNCTIONAL BLOCK DIAGRAM
REGE
PCK
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
CS0#
DQMB0
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQ32
DQ33
DQ34
DQ35
DQ36
DQ37
DQ38
DQ39
DQ40
DQ41
DQ42
DQ43
DQ44
DQ45
DQ46
DQ47
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQMB4
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQMB1
DQMB5
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQMB2
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55
DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQMB6
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQMB3
DQMB7
VCC
VSS
SDRAMs
SDRAMs
CB0
CB1
CB2
CB3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM CS
I/O 0
I/O 1
I/O 2
I/O 3
CB4
CB5
CB6
CB7
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
DQM
CS
I/O 0
I/O 1
I/O 2
I/O 3
* Wire per Clock Loading Table/Wiring Diagrams
NOTE: DQ wiring may differ than described in
this drawing, however DQ/DQMB/CKE/S
relationships must be maintained as shown.
RAS#: SDRAMS
CAS#: SDRAMS
CKE0: SDRAMS
WE#: SDRAMS
CS0#-CS3#
DQMB0 to DQMB7
BA0-BA1
A0-A12
RAS#
CAS#
CKE0
WE#
CKE1
RS0#-RS3#
RDQMB0-RDQMB7
RRAS#
RCAS#
RCKE0
RCKE1
RWE#
R
E
G
I
S
T
E
R
CKE1: SDRAMS
CS1#
CS2#
CS3#
#
RBA0-RBA1
RA0-RA12
BA0-BA1: SDRAMS
A0-A12: SDRAMS
A0
SERIAL PD
A1
A2
SA0
SA1
SA2
SCL
SDA
CK0
CK1-CK3
12pF
PLL
REGISTER
SDRAM
12pF
NOTE: All resistor values are 10 ohms.


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