®
IS42S81600A, IS42S16800A, IS42S32400A
IS42LS81600A, IS42LS16800A, IS42LS32400A
ISSI
CKE TRUTH TABLE
CKE
CurrentState/Function
n – 1 n
CS
×
RAS
CAS WE
Address
Activating Clock suspend mode entry
Any Clock suspend mode
Clock suspend mode exit
Auto refresh command Idle
Self refresh entry Idle
H
L
L
×
×
×
L
×
×
×
×
H
H
×
×
×
L
×
×
L
H
H
L
×
×
H
H
L
L
L
×
L
L
×
Power down entry Idle
H
H
L
L
L
H
H
×
H
×
H
×
×
×
Deeppowerdownentry
Self refresh exit
H
L
L
H
H
L
×
L
L
H
H
L
H
H
×
H
×
H
×
×
×
Power down exit
L
L
H
H
L
H
H
×
H
×
H
×
×
×
Deeppowerdownexit
L
H
×
×
×
×
×
Note: H=VIH, L=VIL x= VIH or VIL, V = Valid Data.
12
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
ADVANCEDINFORMATION Rev. 00A
06/01/02
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
