T0
T1
CK#
CK
COMMAND
READ
BST5
T2 T2n T3
NOP
NOP
64Mb: x32
DDR SDRAM
T4
T5
NOP
NOP
ADDRESS
Bank a,
Col n
DQS
CL = 2
DQ
DO
n
T0
T1
T2
T3
T4
T5
CK#
CK
COMMAND
READ
BST5
NOP
NOP
NOP
NOP
ADDRESS
Bank a,
Col n
DQS
CL = 3
DQ
DO
n
DON’T CARE
TRANSITIONING DATA
NOTE: 1. DO n = data-out from column n.
2. Burst length = 4.
3. Subsequent element of data-out appears in the programmed order following DO n.
4. Shown with nominal tAC, tDQSCK, and tDQSQ.
5. BST = BURST TERMINATE command.
Figure 11
Terminating a READ Burst
64Mb: x32 DDR SDRAM
2M32DDR-07.p65 – Rev. 12/01
21
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©2001, Micron Technology, Inc.