MT48LC4M32B2P-7 View Datasheet(PDF) - Micron Technology
Part Name
Description
MFG CO.
'MT48LC4M32B2P-7' PDF : 79 Pages View PDF
128Mb: x32 SDRAM
AUTO REFRESH Operation
Figure 46: Auto Refresh Mode
T0
T1
CLK
tCK
CKE
tCKS
tCKH
tCMS tCMH
Command
PRECHARGE
NOP
DQM
T2
Tn + 1
((
))
tCL
((
))
tCH
((
))
((
))
()()
()()
AUTO
REFRESH
((
))
NOP( ( NOP
))
()()
((
))
AUTO
REFRESH
((
))
NOP( ( NOP
))
((
))
()()
Address
A10
All banks
Single bank
tAS tAH
BA0, BA1
Bank(s)
DQ High-Z
tRP
((
))
((
))
((
))
((
))
((
))
()()
()()
tRFC
((
))
((
))
((
))
((
))
((
))
()()
()()
tRFC
Precharge all
active banks
Note: 1. Back-to-back AUTO REFRESH commands are not required.
To + 1
ACTIVE
Row
Row
Bank
Don’t Care
PDF: 09005aef80872800
128mb_x32_sdram.pdf - Rev. U 04/13 EN
73
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© 2001 Micron Technology, Inc. All rights reserved.
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