A43E26161
Page Read Cycle at Different Bank @Burst Length = 4
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CLOCK
CKE
High
*Note 1
CS
*Note 2
RAS
CAS
RAa
RBb
CAa
RCc
CBb
RDd
CCc
CDd
ADDR
BS1
BS0
A10/AP
WE
RAa
RBb
RCc
RDd
DQM
DQ
(CL=2)
QAa0 QAa1 QAa2 QBb0 QBb1 QBb2 QCc0 QCc1 QCc2 QDd0 QDd1 QDd2
DQ
(CL=3)
QAa0 QAa1 QAa2 QBb0 QBb1 QBb2 QCc0 QCc1 QCc2 QDd0 QDd1 QDd2
Read
(C-Bank)
Row Active
(D-Bank)
Read
(D-Bank)
Precharge
(D-Bank)
Read
(B-Bank)
Read
(A-Bank)
Row Active
(A-Bank)
Precharge
(A-Bank)
Precharge
(B-Bank)
Precharge
(C-Bank)
Row Active
(B-Bank)
Row Active
(C-Bank)
: Don't care
* Note : 1.
can be don’t care when
, and
RAS CAS
are high at the clock high going edge.
WE
CS
2. To interrupt a burst read by row precharge, both the read and the precharge banks must be the same.
(December, 2004, Version 1.0)
26
AMIC Technology, Corp.
AMICC [ AMIC TECHNOLOGY ]
