128Mb: x16 Mobile SDRAM
Timing Diagrams
Figure 33:
Power-Down Mode
CLK
T0
tCK
T1
tCL
tCKS
T2
tCH
( (
) )
( (
) )
Tn + 1
t CKS
Tn + 2
CKE
tCKS
tCKH
( (
) )
COMMAND
tCMS tCM H
PRECHARGE
NOP
NOP
( (
) )
( (
) )
NOP
ACTIVE
DQM
( (
) )
( (
) )
A0–A9, A11
( (
) )
( (
) )
ROW
A10
BA0, BA1
DQ
ALL BANKS
SINGLE BANK
t AS
tAH
BANK(S)
High-Z
Two clock cycles
( (
) )
( (
) )
( (
) )
( (
) )
( (
) )
Input buffers gated off while in
ROW
BANK
power-down mode
Precharge all
active banks
All banks idle, enter
power-down mode
Exit power-down mode
All banks idle
DON’T CARE
Notes:
1. Violating refresh requirements during power-down may result in a loss of data.
PDF: 09005aef8237e877/Source: 09005aef8237e8d8
128Mb_x16 Mobile SDRAM_Y25M_2.fm - Rev. C 2/07 EN
47
Micron Technology, Inc., reserves the right to change products or specifications without notice.
?2006 Micron Technology, Inc. All rights reserved.
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