AS4C32M16D1A-C&I
Figure 12. Read to Write Required CAS Latencies (CL=2)
CK
CK
COMMAND
ADDRESS
WRITE
READ
BST
NOP
NOP
NOP
Bank,
Col o
Bank,
Col n
tDQSS
min
CL=2
DQS
DQ
DO
n
DI
o
DM
DO n (or o)= Data Out from column n (or column o)
Burst Length= 4 in the cases shown (applies for bursts of 8 as well; if burst length is 2, the BST
command shown can be NOP)
1 subsequent element of Data Out appears in the programmed order following DO n
Data in elements are applied following DI o in the programmed order
Don’t Care
25
Rev. 1.0
Mar. /2015