m52s32321a Elite Semiconductor Memory Technology Inc., m52s32321a Datasheet - Page 26

• Manufacturer Part Number: m52s32321a
• Description: 512k X 32bit X 2banks Synchronous Dram
• Manufacturer: Elite Semiconductor Memory Technology Inc.

C L O C K
A D D R
ESMT
C A S
*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.
C K E
R A S
D Q M
W E
D Q
C S
MODE REGISTER SET CYCLE
2.Minimum 2 clock cycles should be met before new RAS activation.
3.Please refer to Mode Register Set table.
Mode Register Set Cycle
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
Auto Refresh Cycle
0
A u t o R e f r e s h
1
2
H I G H
H i - Z
3
4
t
5
R C
Revision : 1.5
Publication Date : Jan. 2009
M52S32321A
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7
8
N e w C o m m a n d
: D o n ' t C a r e
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