Epson SED1560 Series Technical Manual - Page 33

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Epson SED1560 Series Technical Manual
SED1520 Series
• MPU Bus Read/Write II (68-family MPU)
E
R/W
A0,CS
D0 to D7
(WRITE)
D0 to D7
(READ)
Ta = –20 to 75 deg. C, V
Parameter
System cycle time
Address setup time
Address hold time
Data setup time
Data hold time
Output disable time
Access time
Enable
Read
pulsewidth
Write
Rise and fall time
(V
= –2.7 to – 4.5 V, Ta = –20 to +75 C)
SS
Parameter
*1
System cycle time
Address setup time
Address hold time
Data setup time
Data hold time
Output disable time
Access time
Enable
Read
pulse width
Write
Rise and fall time
Notes: 1. t
is the cycle time of CS. E = H, not the cycle time of E.
CYC6
2–24
= –5 V 10 unless stated otherwise
SS
Symbol
Condition
t
CYC6
t
AW6
t
AH6
t
DS6
t
DH6
t
OH6
C
t
ACC6
t
EW
tr, tf
Symbol
Condition
t
CYC6
t
AW6
t
AH6
t
DS6
t
DH6
t
OH6
C
t
ACC6
t
EW
t
, t
r
f
t
CYC6
t
r
t
AW6
t
ACC6
Rating
Min.
1000
20
10
80
10
10
= 100 pF
L
—
100
80
—
—
Rating
Min.
—
2000
40
—
20
160
—
20
20
= 100 pF
L
—
200
—
160
—
—
EPSON
t
EW
t
f
t
DS6
t
AH6
t
DH6
t
OH6
Unit
Max.
—
ns
—
ns
—
ns
—
ns
—
ns
60
ns
90
ns
—
ns
—
ns
15
ns
Unit
Max.
—
ns
—
ns
—
ns
—
ns
—
ns
120
ns
180
ns
—
ns
—
ns
15
ns
Signal
A0, CS, R/W
D0 to D7
E
—
Signal
A0, CS, R/W
D0 to D7
E
—