128Mb: x32 SDRAM
READ Operation
Figure 23: READ Continuous Page Burst
T0
T1
tCH
T2
T3
T4
T5
T6
((
))
((
))
CLK
tCKS tCKH
tCL
tCK
Tn + 1
Tn + 2
Tn + 3
Tn + 4
CKE
tCMS
tCMH
NOP
READ
NOP
NOP
NOP
NOP
((
))
((
))
((
))
((
))
((
))
((
))
Command
ACTIVE
NOP
BURST TERM
NOP
NOP
tCMS
tCMH
DQM
tAS
tAH
Column m
Address
Row
((
))
((
))
((
))
((
))
((
))
((
))
tAS
tAH
A10
Row
tAS
tAH
Bank
BA0, BA1
Bank
tAC
tOH
tAC
tOH
D
OUT
tAC
DQ
tLZ
tRCD
D
OUT
((
D
OUT
) )
((
))
tAC
tOH
((
))
tAC
tOH
D
OUT
tAC
tOH
D
OUT
tOH
D
OUT
tHZ
CAS latency
All locations within same row
Full page completed
Full-page burst does not self-terminate.
Can use BURST TERMINATE command.
Don’t Care
Undefined
Note:
1. For this example, CL = 2.
PDF: 09005aef80872800
128mb_x32_sdram.pdf - Rev. U 04/13 EN
50
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2001 Micron Technology, Inc. All rights reserved.
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