IS61QDB42M36 Datasheet, PDF (20/28 Pages) Integrated Silicon Solution, Inc – 72 Mb (2M x 36 & 4M x 18) QUAD (Burst of 4) Synchronous SRAMs

72 Mb (2M x 36 & 4M x 18)
QUAD (Burst of 4) Synchronous SRAMs
Read, Write, and NOP Timing Diagram
Read
Write
Read
Write
Read
NOP
NOP
K
K
SA
A1
BW_X
R
A2
A3
A4
B2-1 B2-2
B2-3
B2-4
B4-1
B4-2 B4-3
W
D (Data-In)
D2-1 D2-2 D2-3
D2-4
D4-1
D4-2
D4-3
D (Data-Out)
Q1-1 Q1-2 Q1-3
Q1-4 Q3-1 Q3-2 Q3-3
C
C
CQ
CQ
Note: If address A3=A2, data Q3-1=D2-1, data Q3-2=D2-2, data Q3-3=D2-3, and
data Q3-4=D2-4, then write data is forwarded immediately as read results.
Don’t Care
Undefined
20
Integrated Silicon Solution, Inc.
Rev. 
11/10/09