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Interface AC Characteristics
MPU Interface
(GND = 0 V, Vcc = 4.5 to 5.5 V, Ta = -20 to +75¢ J
2
ns
--
--
20
tDHR
Data hold time (Read)
1
ns
--
--
10
tDHW
Data hold time (Write)
2, 3
ns
320
--
--
tDDR
Data delay time
1
ns
--
--
200
tDSW
Data setup time
1, 2
ns
--
--
10
tAH
Address hold time
1, 2
ns
--
--
140
tAS
Address setup time
1, 2
ns
25
--
--
tf
E fall time
1, 2
ns
25
--
--
tr
E rise time
1, 2
ns
--
--
450
PWEL
E low level width
1, 2
ns
--
--
450
PWEH
E high level width
1, 2
ns
--
--
1,000
tCYC
E cycle time
Note
Unit
Max
Typ
Min
Symbol
Item
Notes : 1.
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AX6018 Dot Matrix Liquid Crystal Graphic Display Column Driver
ASLIC MICROELECTRONICS CORP.
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Page 7
2.0V
0.8V
P
WEL
2.0V
0.8V
t
t
AS
AS
P
WEL
cyc
t
t f
t AH
tr
2.0V
0.8V
2.0V
0.8V
t
t
tAH
DSW
DHW
E
R/W
CS1 - CS3
D/I
DB0 - DB7
Figure 1 CPU Write Timing
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