EM6AB160
EtronTech
Figure 26. Write to Precharge Max tDQSS ODD Number of Data Interrupting
T8
T9
T10
T11
T4
T0
T1
T2
T3
T5
T6
T7
CK
CK
COMMAND
ADDRESS
WRITE
NOP
NOP
NOP
NOP
PRE
tWR
Bank a,
Col n
Bank
(a or all)
tRP
tDQSS (max)
*2
DQS
DQ
DI
n
DM
*1
*1
*1
*1
DI n = Data In for column n
An interrupted burst of 4 or 8 is shown, 1 data element is written
tWR is referenced from the first positive CK edge after the last Data In Pair
A10 is LOW with the WRITE command (AUTO PRECHARGE is disabled)
*1 = can be don't care for programmed burst length of 4
*2 = for programmed burst length of 4, DQS becomes don't care at this point
DM= UDM & LDM
Don’t Care
Rev.1.3
46
Jun. /2015
ETRON [ ETRON TECHNOLOGY, INC. ]
