Data Sheet
HY[B/E]18M1G16[0/1]BF
1-Gbit DDR Mobile-RAM
FIGURE 31
Interrupting WRITE to PRECHARGE (max. tDQSS
)
CK
CK
Command
WRITE
NOP
NOP
NOP
PRE
NOP
BA a
Address
BA,Col b
(or all)
tDQSSmax
tWR
*2
DQS
DQ
Di b
DM
*1
*1
*1
*1
DI b = Data In to column b .
An interrupted burst of 4, 8 or 16 is shown, 2 data elements are written.
WR is referenced from the positive clock edge after the last desired Data In pair.
= Don't Care
t
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
Rev.1.0, 2007-03
10242006-Y557-TZXW
40
QIMONDA [ QIMONDA AG ]
