1Gb: x8, x16 Automotive DDR2 SDRAM - Micron
1Gb: x8, x16 Automotive DDR2 SDRAM - Micron
1Gb: x8, x16 Automotive DDR2 SDRAM - Micron
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Figure 36: READ Latency<br />
CK#<br />
CK<br />
Command<br />
DQS, DQS#<br />
DQ<br />
T0 T1 T2<br />
ACTIVE n<br />
Figure 37: WRITE Latency<br />
CK#<br />
CK<br />
Command<br />
DQS, DQS#<br />
DQ<br />
READ n NOP NOP<br />
tRCD (MIN)<br />
AL = 2<br />
T3 T4 T5<br />
RL = 5<br />
NOP<br />
CL = 3<br />
Notes: 1. BL = 4.<br />
2. Shown with nominal t AC, t DQSCK, and t DQSQ.<br />
3. RL = AL + CL = 5.<br />
T0 T1 T2<br />
ACTIVE n<br />
WRITE n<br />
t RCD (MIN)<br />
NOP NOP<br />
Notes: 1. BL = 4.<br />
2. CL = 3.<br />
3. WL = AL + CL - 1 = 4.<br />
NOP<br />
T3 T4 T5<br />
NOP<br />
AL = 2 CL - 1 = 2<br />
WL = AL + CL - 1 = 4<br />
<strong>1Gb</strong>: <strong>x8</strong>, <strong>x16</strong> <strong>Automotive</strong> <strong>DDR2</strong> <strong>SDRAM</strong><br />
Extended Mode Register (EMR)<br />
NOP<br />
DI<br />
n<br />
T6<br />
NOP<br />
DO<br />
n<br />
DI<br />
n + 1<br />
DO<br />
n + 1<br />
DO<br />
n + 2<br />
Transitioning Data<br />
T6<br />
NOP<br />
DI<br />
n + 2<br />
Transitioning Data<br />
T7 T8<br />
NOP NOP<br />
DI<br />
n + 3<br />
DO<br />
n + 3<br />
Don’t Care<br />
T7<br />
NOP<br />
Don’t Care<br />
PDF: 09005aef840eff89<br />
1gbddr2_ait_aat.pdf – Rev. C 7/11 EN 80 <strong>Micron</strong> Technology, Inc. reserves the right to change products or specifications without notice.<br />
� 2010 <strong>Micron</strong> Technology, Inc. All rights reserved.
Change language