ACM4004H SERIES CHARACTER MODULE VER2.0
8.0 TIMING CHARACTERISTICS
Item
Enable cycle time
Enable pulse width
Enable rise/fall time
RS, R/W set up time
RS, R/W hold time
Data delay time
Data set up time
Data hold time
Symbol
t
C
t
W
t
R
, t
F
t
SU
t
H
t
D
t
DSU
t
DH
Test Condition
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a, Fig. b
Fig. a, Fig. b
Fig. b
Fig. a
Fig. a, Fig. b
Min.
500
230
-
40
10
-
80
10
Typ.
-
-
-
-
-
-
-
-
Max.
-
-
20
-
-
120
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
RS
R /W
E
D B0~D B7
V
IH 1
V
IL 1
t
SU
V
IH 1
V
IL 1
t
H
V
IL 1
V
IL 1
t
W
V
IH 1
V
IL 1
t
R
V
IH 1
V
IH 1
V
IL 1
t
DSU
t
DH
V
IH 1
V
IL 1
t
F
t
H
V a lid D a ta
V
IL 1
t
C
V
IL 1
Fig. a Interface timing (data write)
V
IH1
V
IL1
t
SU
V
IH1
V
IH1
V
IL1
t
H
V
IH1
RS
R/W
t
W
t
F
V
IH1
V
IL1
t
H
E
DB0~DB7
V
IH1
V
IL1
t
R
t
D
V
IH1
V
IL1
t
DSU
V
IL1
t
DH
V
IH1
V
IL1
Valid Data
t
C
Fig. b Interface timing (data read)
DISPLAYTRONIC
XIAMEN ZETTLER ELECTRONICS CO., LTD.
8
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