k7r643682m-fi250 Samsung Semiconductor, Inc., k7r643682m-fi250 Datasheet - Page 14

• Manufacturer Part Number: k7r643682m-fi250
• Description: 2mx36-bit, 4mx18-bit, 8mx9-bit Qdrtm Ii B2 Sram
• Manufacturer: Samsung Semiconductor, Inc.

K7R643682M
K7R641882M
K7R640982M
APPLICATION INRORMATION
MEMORY
CONTROLLER
SRAM1 Input CQ
SRAM1 Input CQ
SRAM4 Input CQ
SRAM4 Input CQ
Source CLK
Source CLK
Return CLK
Return CLK
Data Out
Address
Data In
BW
W
R
Vt
R
R=50Ω Vt=V
Vt
Vt
SA
D
REF
R W BW
2Mx36 & 4Mx18 & 8Mx9 QDR
SRAM#1
0
BW
1
- 14 -
C C
K
CQ
CQ
Q
ZQ R=250Ω
K
D
SA
R
Vt
Vt
RW BW
Rev. 1.3 March 2007
SRAM#4
TM
0
BW
II b2 SRAM
1
C C
K
CQ
ZQ
CQ
ZQ
Q
K
R=250Ω