T4312816A Taiwan Memory Technology, T4312816A Datasheet - Page 23

• Manufacturer Part Number: T4312816A
• Description: 8M x 16 SDRAM
• Manufacturer: Taiwan Memory Technology

tm
Read Interrupted by Precharge Command & Read Burst Stop Cycle @ Burst Length=Full Page
*Note : 1. Burst can’t end in full page mode, so auto precharge can’t issue.
TM Technology Inc. reserves the right
to change products or specifications without notice.
D Q
C L O C K
A 1 0 / A P
A D D R
C K E
R A S
C A S
D Q M
C L = 2
C L = 3
C S
B A
W E
2. About the valid DQs after burst stop, it is same as the case of RAS interrupt.
3. Burst stop is valid at every burst length.
Both cases are illustrated above timing diagram. See the lable 1,2 on them.
But at burst write, burst stop and RAS interrupt should be compared carefully.
Refer the timing diagram of ‘Full Page write burst stop cycle’.
0
R o w A c t i v e
( A - B a n k )
CH
TE
R A a
R A a
1
2
3
R e a d ( A -
C A a
B a n k )
4
5
Q A a 0
6
Q A a 1
Q A a 0
7
Q A a 2
Q A a 1
H I G H
8
B u r s t S t o p
Q A a 3
Q A a 2
P.23
9
* N o t e 2
Q A a 4
Q A a 3
1 0
1
R e a d ( A -
C A b
Q A a 4
B a n k )
1 1
2
1 2
Q A b 0
Preliminary T4312816A
1 3
Q A b 1
Q A b 0
1 4
Q A b 2
Q A b 1
Publication Date: APR. 2003
1 5
Q A b 3
Q A b 2
1 6
P r e c h a r g e
( A - B a n k )
Q A b 4
Q A b 3
1 7
Q A b 5
Q A b 4
1 8
1
Revision: 0.B
Q A b 5
: D o n 't c a r e
1 9
2