IS61SF25632T/D IS61LF25632T/D
IS61SF25636T/D IS61LF25636T/D
IS61SF51218T/D IS61LF51218T/D
ISSI ®
TRUTH TABLE
Operation
Address
Used CE
Deselected, Power-down
None H
Deselected, Power-down
None L
Deselected, Power-down
None L
Deselected, Power-down
None L
Deselected, Power-down
None L
Read Cycle, Begin Burst External L
Read Cycle, Begin Burst External L
Write Cycle, Begin Burst External L
Read Cycle, Continue Burst Next X
Read Cycle, Continue Burst Next X
Read Cycle, Continue Burst Next H
Read Cycle, Continue Burst Next H
Write Cycle, Continue Burst Next X
Write Cycle, Continue Burst Next H
Read Cycle, Suspend Burst Current X
Read Cycle, Suspend Burst Current X
Read Cycle, Suspend Burst Current H
Read Cycle, Suspend Burst Current H
Write Cycle, Suspend Burst Current X
Write Cycle, Suspend Burst Current H
CE2 CE2 ADSP ADSC ADV WRITE OE DQ
X
X
X
L
X
X
X High-Z
X
H
L
X
X
X
X High-Z
L
X
L
X
X
X
X High-Z
X
H
H
L
X
X
X High-Z
L
X
H
L
X
X
X High-Z
H
L
L
X
X
X
X
Q
H
L
H
L
X Read X
Q
H
L
H
L
X Write X
D
X
X
H
H
L Read L
Q
X
X
H
H
L Read H High-Z
X
X
X
H
L Read L
Q
X
X
X
H
L Read H High-Z
X
X
H
H
L Write X
D
X
X
X
H
L Write X
D
X
X
H
H
H Read L
Q
X
X
H
H
H Read H High-Z
X
X
X
H
H Read L
Q
X
X
X
H
H Read H High-Z
X
X
H
H
H Write X
D
X
X
X
H
H Write X
D
PARTIAL TRUTH TABLE
Function
GW BWE BWa BWb BWc BWd
Read
H
H
X
X
X
X
Read
H
L
H
H
H
H
Write Byte 1
H
L
L
H
H
H
Write All Bytes
H
L
L
L
L
L
Write All Bytes
L
X
X
X
X
X
Integrated Silicon Solution, Inc. — 1-800-379-4774
9
Rev.A
02/01/02