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MN 6 6 2 7 8 5 T B U C
P a r a m e t e r
D R A M I n t e r f a c e
C 9 9
N R A S l o w - l e v e l p u l s e w i d t h
C100
NRAS high-level pulse width
N C A S 0 / N C A S 1 l o w - l e v e l p u l s e
C 1 0 1
w i d t h
NCAS0 / NCAS1 high-level pulse
C 1 0 2
width
C 1 0 3
N R A S a d d r e s s s e t u p t i m e
C104
NCAS0 / NCAS1 address hold time
C 1 0 5
N C A S 0 / N C A S 1 a d d r e s s s e t u p t i m e
C106
N C A S 0 / N C A S 1 a d d r e s s h o l d t i m e
C107
N C A S 0 / N C A S 1 d a t a s e t u p t i m e
C108
NCAS0 / NCAS1 data valid time
C109
NRAS data valid time
C 1 1 0
D a t a h o l d t i m e
C 1 1 1
N W E d e l a y t i m e
C 1 1 2
N W E p u l s e w i d t h
C 1 1 3
R e f r e s h p e r i o d
C114
( P l a y b a c k f s ＝4 4 . 1 k H z )
C 1 1 5
M e m o r y s y s t e m O N w i t h d e c o d e
C 1 1 6
s e q u e n c e e x e c u t e d .
C117
C 1 1 8
t
c y : O n e s y s t e m c l o c k c y c l e w h i c h i s i n d i c a t e d a s 1 / ( 1 6 . 9 3 4 4 M H z ) s e c o n d s .
S y m b o l
Conditions
t r a s l
t rash
t c a s l
t c a s h
t r a d s
t radh
t cads
t c a d h w
t cwds
t c a d v
t r a d v
t c a d h r
t w c d
t wel
t r e f
1 6 M b i t s , f u l l b i t s
16 Mbits,
t r e f
4-bit compression
t ref
4 Mbits, full bits
4 Mbits,
t r e f
4-bit compression
t ref
1 Mbit, full bits
1 M b i t ,
t ref
4 - b i t c o m p r e s s i o n
SDD00026AEM
D V
＝3 . 3 V , D V
D D 1 , 2
A V
＝3 . 3 V , A V
D D 1 , 2
T a ＝
−4 0°C t o ＋8 5°C
＝3 3 . 8 6 8 8 M H z
f
X 1
Limits
Min
T y p
Max
6
2
4
4
1
1
2
3
3
120
300
0
3
5
5 . 9
2 3 . 3
3.0
11.7
1.5
5.9
＝0 V
S S 1 , 2
＝0 V
S S 1 , 2
Unit
tcy
tcy
tcy
tcy
tcy
tcy
tcy
tcy
tcy
ns
ns
ns
tcy
tcy
m s
m s
ms
ms
ms
ms
86
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