512Mb : 32 Me g x 16, 16 Me g x 32 Mo b ile SDRAM
Tim in g Dia g ra m s
Fig u re 39: Au t o Re fre sh Mo d e
T0
T1
T2
Tn + 1
CL
To + 1
( (
) )
( (
) )
t
CLK
CKE
t
t
( (
) )
( (
) )
CK
CH
( (
) )
( (
) )
t
t
t
CKS
CMS
CKH
t
CMH
( (
) )
( (
) )
( (
) )
( (
) )
AUTO
REFRESH
AUTO
REFRESH
COMMAND
DQM
PRECHARGE
NOP
NOP
NOP
NOP
NOP
ACTIVE
( (
) )
( (
) )
( (
) )
( (
) )
( (
) )
( (
) )
A0–A9,
ROW
ROW
( (
) )
( (
) )
A11, A12
ALL BANKS
( (
) )
( (
) )
A10
( (
) )
( (
) )
SINGLE BANK
t
t
AS
AH
( (
) )
( (
) )
( (
) )
( (
) )
BANK(S)
BA0, BA1
DQ
BANK
High-Z
( (
) )
( (
) )
t
t
t
RFC
RP
RFC
Precharge all
active banks
DON’T CARE
UNDEFINED
Notes: 1. Each AUTO REFRESH command performs a REFRESH cycle. Back-to-back commands are not
required. See Table 11 on page 47.
PDF: 09005aef81ca5de4/Source: 09005aef81ca5e03
MT48H32M16LF_1.fm - Rev. H 6/07 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2005 Micron Technology, Inc. All rights reserved.
56
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