IS42S32400E-6B ISSI [Integrated Silicon Solution, Inc], IS42S32400E-6B Datasheet - Page 22

• Manufacturer Part Number: IS42S32400E-6B
• Description: 4M x 32 128Mb SYNCHRONOUS DRAM
• Manufacturer: ISSI [Integrated Silicon Solution, Inc]

IS42S32400E, IS45S32400E
Note:
1. Self-Refresh Mode is not supported for A2 grade with T
SELF-REFRESH CYCLE
22
DQM0 - DQM3
COMMAND
A0-A9, A11
BA0, BA1
active banks
Precharge all
CKE
CLK
A10
DQ
High-Z
SINGLE BANK
t
t
ALL BANKS
CKS
CMS
PRECHARGE
t
AS
BANK
T0
t
t
CKH
t
CMH
AH
t
CK
refresh mode
NOP
t
RP
Enter self
T1
t
CH
t
t
CL
CKS
Refresh
Auto
T2
a
CLK stable prior to exiting
> 85
self refresh mode
o
C.
≥ t
RAS
(Restart refresh time base)
Exit self refresh mode
Tn+1
NOP
Integrated Silicon Solution, Inc. - www.issi.com
t
NOP
CKS
t
XSR
To+1
To+2
Refresh
Auto
DON'T CARE
05/18/09
Rev. D