Advance
576Mb: x18, x36 RLDRAM 3
AUTO REFRESH Operation
AUTO REFRESH Operation
Figure 53: Bank Address-Controlled AUTO REFRESH Cycle
T0
T1
T2
T3
CK#
CK
( (
) )
tCK
tCH
ACx
tCL
( (
) )
AREFx
AREFy
ACy
Command
( (
) )
Address
Bank
( (
) )
BAx
BAy
( (
) )
DK, DK#
DQ
( (
) )
( (
) )
DM
tRC
Indicates a break
in time scale
Don’t’ Care
1. AREFx (or AREFy)= AUTO REFRESH command to bank x (or bank y).
2. ACx = any command to bank x; ACy = any command to bank y.
3. BAx = bank address to bank x; BAy = bank address to bank y.
Notes:
Figure 54: Multibank AUTO REFRESH Cycle
T0
T1
T2
T3
T4
T5
T6
T7
CK#
CK
Command
Address
AREF
AREF
AREF
AC
Bank
Bank
Bank
2, 3
Bank
0
0,4,8,12
1,5,9,13
tMMD
tMMD
Bank
DK, DK#
DQ
DM
tRC
Indicates a break
in time scale
Don’t Care
PDF: 09005aef84003617
576mb_rldram3.pdf – Rev. B 1/12 EN
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