IS61SPD25632T Datasheet, PDF (9/22 Pages) Integrated Silicon Solution, Inc – 256K x 32, 256K x 36, 512K x 18 SYNCHRONOUS PIPELINE, DOUBLE-CYCLE DESELECT STATIC RAM

IS61SPD25632T/D IS61LPD25632T/D
IS61SPD25636T/D IS61LPD25636T/D
IS61SPD51218T/D IS61LPD51218T/D
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
L
X
H
H
L
X
X
X High-Z
Deselected, Power-down
None
L
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
GW BWE
Read
H
H
Read
Write Byte 1
Write All Bytes
H
L
H
L
H
L
Write All Bytes
L
X
BWa
X
H
L
L
X
BWb
X
H
H
L
X
BWc
X
H
H
L
X
BWd
X
H
H
L
X
Integrated Silicon Solution, Inc. — 1-800-379-4774
9
PRELIMINARY INFORMATION Rev. 00A
04/17/01