IS42LS16800A ICSI [Integrated Circuit Solution Inc], IS42LS16800A Datasheet - Page 27

• Manufacturer Part Number: IS42LS16800A
• Description: 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM
• Manufacturer: ICSI [Integrated Circuit Solution Inc]

IS42S81600A, IS42S16800A, IS42S32400A
IS42LS81600A, IS42LS16800A, IS42LS32400A
SELF-REFRESH CYCLE
Integrated Silicon Solution, Inc. — www.issi.com —
ADVANCED INFORMATION Rev. 00A
06/01/02
CAS latency = 2, 3
DQML, DQMH
COMMAND
A0-A9, A11
BA0, BA1
active banks
Precharge all
DQM/
CKE
CLK
A10
DQ
High-Z
SINGLE BANK
t
t
ALL BANKS
CKS
PRECHARGE
CMS
t
AS
BANK
T0
t
t
CKH
CMH
t
AH
t
CK
refresh mode
NOP
t
RP
Enter self
T1
t
CH
t
t
CL
CKS
Refresh
Auto
T2
CLK stable prior to exiting
self refresh mode
1-800-379-4774
t
RAS
(Restart refresh time base)
Exit self refresh mode
Tn+1
NOP
t
t
NOP
CKS
XSR
To+1
To+2
Refresh
ISSI
Auto
DON'T CARE
27
®