MB81F641642D Fujitsu Microelectronics, MB81F641642D Datasheet - Page 28

• Manufacturer Part Number: MB81F641642D
• Description: 4 x 1M x 16-Bit SDRAM
• Manufacturer: Fujitsu Microelectronics

28
MB81F641642D-75/-102/-102L
(At recommended operating conditions unless otherwise noted.) Note *1, *2, *3
Clock Period
Clock High Time
Clock Low Time
Input Setup Time
Input Hold Time
Access Time
from Clock
(t
Output in Low-Z
Output in High-Z
Output Hold Time
Time between Auto-Refresh
command interval
Time between Refresh
Transition Time
CKE Setup Time
for Power Down
Exit Time
CK
AC CHARACTERISTICS
Parameter
= min)
Notes
*5,6,7
*5,8
*5,7
*5
*5
*5
*5
*5
*5
*4
CL = 2
CL = 3
CL = 2
CL = 3
CL = 2
CL = 3
CL = 2
CL = 3
Symbol
t
t
t
t
t
t
t
t
t
CKSP
t
t
t
REFI
t
REF
CK2
CK3
t
t
AC2
AC3
HZ2
HZ3
CH
OH
t
CL
LZ
SI
HI
T
MB81F641642D
Min.
7.5
2.5
2.5
0.5
1.5
10
—
—
—
2
1
0
3
3
3
3
-75
Max.
15.6
64
10
—
—
—
—
—
—
—
—
6
6
6
6
Preliminary (AE4.1E)
MB81F641642D
Min.
0.5
10
10
—
—
—
-102/-102L
3
3
2
1
0
3
3
2
Max.
15.6
64
10
—
—
—
—
—
—
—
—
6
6
6
6
Reference Value
@66MHz(CL=2)
Min.
0.5
15
10
—
—
—
3
3
2
1
0
3
3
2
Max.
15.6
64
10
—
—
—
—
—
—
—
—
8
6
8
6
*4
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s