ESMT
M12S64164A
Active/Precharge Power Down Mode @ CAS Latency = 2, Burst Length = 4
1 0
11
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
0
1
2
3
4
5
6
7
8
9
C L O C K
C K E
* N o t e 2
t
S S
t
S S
t
S S
* N o t e 1
* N o t e 3
C S
R A S
C A S
A D D R
R a
C a
B A 0
B A 1
A 1 0 / A P
R a
t
S H Z
DQ
Q a 0 Q a 1 Q a 2
W E
D Q M
R e a d
P r e c h a r g e
P re c h a rg e
P o we r -D o wn
En tr y
R o w A ct i ve
P re ch a rg e
P o we r -D o wn
E xi t
A c t i v e
P o w e r - d o w n
E x i t
A ct i v e
P o w e r -d o w n
E n t r y
:
D o n ' t c a r e
*Note: 1. All banks should be in idle state prior to entering precharge power down mode.
2. CKE should be set high at least 1CLK + tSS prior to Row active command.
3. Can not violate minimum refresh specification. (64ms)
Elite Semiconductor Memory Technology Inc.
Publication Date: Apr. 2009
Revision: 1.2 39/45
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
