ADVANCE
128Mb: x16, x32
MOBILE SDRAM
AUTO REFRESH MODE
T0
T1
T2
Tn + 1
CL
To + 1
( (
) )
( (
) )
t
CLK
CKE
t
t
( (
( (
CK
CH
) )
) )
( (
) )
( (
) )
t
t
CKS
CKH
t
t
CMS
CMH
( (
) )
( (
) )
AUTO
REFRESH
AUTO
REFRESH
COMMAND
PRECHARGE
NOP
NOP
NOP
NOP
NOP
ACTIVE
( (
( (
) )
) )
( (
) )
( (
) )
DQMU, DQML
( (
( (
) )
) )
( (
) )
( (
) )
( (
) )
( (
) )
A0-A9, A11
A10
ROW
ROW
ALL BANKS
( (
) )
( (
) )
( (
) )
( (
) )
SINGLE BANK
t
t
AH
AS
( (
) )
( (
) )
BANK(S)
BA0, BA1
DQ
BANK
( (
( (
) )
) )
High-Z
( (
) )
( (
) )
t
t
t
1
RFC
1
RP
RFC
Precharge all
active banks
DON’T CARE
TIMING PARAMETERS
-8
-10
-8
-10
SYMBOL*
MIN
1
MAX
MIN
1
MAX UNITS
SYMBOL*
MIN
20
1
MAX
MIN
25
MAX UNITS
t
t
AH
ns
ns
ns
ns
ns
ns
CK (1)
ns
ns
ns
ns
ns
ns
ns
t
t
AS
2.5
3
2.5
3
CKH
1
t
t
CH
CKS
2.5
1
2.5
1
t
t
CL
3
3
CMH
t
t
CK (3)
8
10
12
CMS
2.5
80
20
2.5
100
20
t
t
CK (2)
10
RFC
t
RP
*CAS latency indicated in parentheses.
NOTE: 1. Each AUTO REFRESH command performs a refresh cycle. Back-to-back commands are not required.
128Mb: x16, x32 Mobile SDRAM
MobileY95W_3V_F.p65 – Rev. F; Pub. 9/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2002, Micron Technology, Inc.
43
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