is42s16128 Integrated Silicon Solution, Inc., is42s16128 Datasheet - Page 18

• Manufacturer Part Number: is42s16128
• Description: 128k Words Bits Banks Sdram
• Manufacturer: Integrated Silicon Solution, Inc.

SIMPLIFIED STATE TRANSITION DIAGRAM (One Bank Operation)
18
IS42S16128
POWER APPLIED
SUSPEND
CLOCK
CKE
CKE_
WRIT
Automatic transition following the
completion of command execution.
Transition due to command input.
CKE
CKE_
WRITA
POWER ON
PRECHARGE
WRITE WITH
REGISTER
WRITE
MODE
AUTO
BST
SET
WRIT
PRE
WRITA
WRITA
MRS
PRE
READ
CHARGE
ACTIVE
BANK
PRE-
IDLE
PRE
ACT
SREF entry
WRIT
CKE
CKE_
READA
REF
READA
PRE
Integrated Silicon Solution, Inc. — 1-800-379-4774
CKE_
CKE
READ
SREF exit
REFRESH
REFRESH
PRECHARGE
READ WITH
POWER
POWER
ACTIVE
DOWN
DOWN
AUTO
READ
SELF
IDLE
AUTO
BST
READA
CKE_
CKE
CKE
CKE_
READ
SUSPEND
CLOCK
ISSI
03/13/00
Rev. A
®