IS61SP25616 Datasheet, PDF (5/15 Pages) Integrated Silicon Solution, Inc – 256K x 16, 256K x 18 SYNCHRONOUS PIPELINED STATIC RAM

IS61SP25616
IS61SP25618
ISSI ^®
TRUTH TABLE
Operation
Address
Used
CE CE2 CE2 ADSP ADSC ADV WRITE OE DQ
Deselected, Power-down
None
H
X
X
X
L
X
X
X High-Z
Deselected, Power-down
None
L
X
H
L
X
X
X
X High-Z
Deselected, Power-down
None
L
L
X
L
X
X
X
X High-Z
Deselected, Power-down
None
X
X
H
H
L
X
X
X High-Z
Deselected, Power-down
None
X
L
X
H
L
X
X
X High-Z
Read Cycle, Begin Burst
External L
H
L
L
X
X
X
X
Q
Read Cycle, Begin Burst
External L
H
L
H
L
X Read X
Q
Write Cycle, Begin Burst
External L
H
L
H
L
X Write X
D
Read Cycle, Continue Burst Next
X
X
X
H
H
L Read L
Q
Read Cycle, Continue Burst Next
X
X
X
H
H
L Read H High-Z
Read Cycle, Continue Burst Next
H
X
X
X
H
L Read L
Q
Read Cycle, Continue Burst Next
H
X
X
X
H
L Read H High-Z
Write Cycle, Continue Burst Next
X
X
X
H
H
L Write X
D
Write Cycle, Continue Burst Next
H
X
X
X
H
L Write X
D
Read Cycle, Suspend Burst Current
X
X
X
H
H
H Read L
Q
Read Cycle, Suspend Burst Current
X
X
X
H
H
H Read H High-Z
Read Cycle, Suspend Burst Current H
X
X
X
H
H Read L
Q
Read Cycle, Suspend Burst Current H
X
X
X
H
H Read H High-Z
Write Cycle, Suspend Burst Current
X
X
X
H
H
H Write X
D
Write Cycle, Suspend Burst Current H
X
X
X
H
H Write X
D
PARTIAL TRUTH TABLE
Function
Read
Read
Write Byte 1
Write All Bytes
Write All Bytes
GW BWE
H
H
H
L
H
L
H
L
L
X
BW1
X
H
L
L
X
BW2
X
H
H
L
X
Integrated Silicon Solution, Inc. — 1-800-379-4774
5
Rev. A
04/17/01