HT1623
Symbol
t
r
, t
f
t
su
t
h
t
su1
t
h1
Parameter
Test Conditions
V
DD
Conditions
¾
¾
¾
¾
¾
Min.
¾
¾
¾
¾
¾
Typ.
120
120
120
100
100
Max. Unit
¾
¾
¾
¾
¾
ns
ns
ns
ns
ns
Rise/Fall Time Serial Data 3V
Clock Width
(Figure 1) 5V
Setup Time DATA to WR, RD 3V
Clock Width
(Figure 2) 5V
Hold Time DATA to WR, RD 3V
Clock Width
(Figure 2) 5V
Setup Time for CS to WR, RD 3V
Clock Width
(Figure 3) 5V
Hold Time for CS to WR, RD 3V
Clock Width
(Figure 3) 5V
V A L ID D A T A
t
f
W R , R D
C lo c k
9 0 %
5 0 %
1 0 %
t
r
-
V
t
C
L K
D D
D B
V
t
h
D D
5 0 %
t
s
u
G N D
V
D D
t
C
L K
G N D
W R , R D
C lo c k
5 0 %
-
G N D
Figure 1
t
C
S
Figure 2
C S
5 0 %
t
s
u 1
-
V
D D
t
h
1
G N D
-
V
D D
W R , R D
C lo c k
5 0 %
F IR S T
C lo c k
L A S T
C lo c k
G N D
Figure 3
8
April 21, 2000
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
