m52d16161a Elite Semiconductor Memory Technology Inc., m52d16161a Datasheet - Page 27

• Manufacturer Part Number: m52d16161a
• Description: 512k X 16bit X 2banks Mobile Synchronous Dram
• Manufacturer: Elite Semiconductor Memory Technology Inc.

ESMT
Mode Register Set Cycle
C L O C K
*Both banks precharge should be completed before Mode Register Set cycle and auto refresh cycle.
*Note: 1. CS , RAS , CAS & WE activation at the same clock cycle with address key will set internal mode register.
Elite Semiconductor Memory Technology Inc.
A D D R
C A S
C K E
R A S
D Q M
W E
D Q
C S
B A
MODE REGISTER SET CYCLE
2.Minimum 2 clock cycles should be met before new RAS activation.
3.Please refer to Mode Register Set table.
0
1
M R S
Key
* N o t e 3
* N o t e 2
* N o t e 1
2
H I G H
H i - Z
N e w C o m m a n d
3
R a
4
5
6
0
Auto Refresh Cycle
A u t o R e f r e s h
1
2
H I G H
H i - Z
3
4
t
R C
5
Revision : 1.7
Publication Date : May 2009
6
M52D16161A
7
8
N e w C o m m a n d
: D o n ' t C a r e
9
1 0
27/32