64CH Segment Driver For Dot Matrix LCD
15
© 1998 Intech LCD Group Ltd.
(
3
)
. MPU Interface
Characteristic
Symbol
Min
Typ
Max
Unit
E Cycle
t
C
1000
-
-
E High Level Width
t
WH
450
-
-
E Low Level Width
t
WL
450
-
-
E Rise Time
t
R
-
-
25
E Fall Time
t
F
-
-
25
Address Set-Up Time
t
ASU
140
-
-
Address Hold Time
t
AH
10
-
-
Data Set-Up Time
t
SU
200
-
-
Data Delay Time
t
D
-
-
320
Data Hold Time (Write)
t
DHW
10
-
-
Data Hold Time (Read)
t
DHR
20
-
-
ns
t
DSU
t
DHW
t
ASU
t
ASU
t
AH
t
AH
t
R
t
F
t
WL
t
WH
t
C
DB0~DB7
CS1B,CS2B
CS3,RS
R/W
E
MPU Write timing
