Epson SED1540 Series Техническое руководство - Страница 32
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AC Characteristics
• MPU Bus Read/Write I (80-family MPU)
A0,CS
t
AW8
WR,RD
D0 to D7
(WRITE)
D0 to D7
(READ)
Ta = –20 to 75 deg. C, V
SS
Parameter
Address hold time
Address setup time
System cycle time
Control pulsewidth
Data setup time
Data hold time
RD access time
Output disable time
Rise and fall time
(V
= –2.7 to –4.5 V, Ta = –20 to +75 C)
SS
Parameter
Address hold time
Address setup time
System cycle time
Control pulse width
Data setup time
Data hold time
RD access time
Output disable time
Rise and fall time
t
CYC8
t
f
t
ACC8
= –5.0 V 10% unless stated otherwise
Symbol
Condition
t
AH8
t
AW8
t
CYC8
t
CC
t
DS8
t
DH8
t
ACC8
C
= 100 pF
L
t
CH8
t
, t
—
r
f
Symbol
Condition
t
AH8
—
t
AW8
t
CYC8
—
t
CC
t
DS8
—
t
DH8
t
ACC8
C
= 100 pF
L
t
CH8
t
, t
—
r
f
EPSON
t
CC
t
r
t
DH8
t
DS8
t
Rating
Min.
Max.
10
20
1000
200
80
10
—
10
—
Rating
Min.
Max.
20
40
2000
400
160
20
—
180
20
120
—
SED1520 Series
t
AH8
OH8
Unit
Signal
—
ns
A0, CS
—
ns
—
ns
WR, RD
—
ns
—
ns
—
ns
D0 to D7
90
ns
60
ns
15
ns
—
Unit
Signal
—
ns
A0, CS
—
ns
—
ns
WR, RD
—
ns
—
ns
—
ns
D0 to D7
ns
ns
15
ns
—
2–23