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808SA/808SA-2
A.C.
CHARACTERISTICS
(TA
=
O°C
to 70°C,
Vee
=
ov
±5%,
vss
=
OV)
Symbol
Parameter
8085AI2J
Min. Max.
tCYC
ClK
Cycle Period
320
2000
t1
ClK
low
Time (Standard
ClK
loading)
80
t2
..
ClK
High Time (Standard
ClK
loading)
120
tnt,
ClK
Rise and Fall Time
30
tXKR
X
1
Rising
to
ClK
Rising
30
120
t
yle
!:
Xi
Rising
to
ClK
Falling
30
150
t
AC
A
S
_
15
Valid
to
leading
Edge
of
Control
l1
!
270
t
ACL
AO-7
Valid
to
leading
Edge
of
Control
240
tAD
A
O
-
15
Valid
to
Valid Data In
575
tAFR
Aaaress Float
After
leaalng
Edge Of
READ"ciNTA)
0
tAL
A
S
-
15
Valid Before Trailing Edge
of
AlE[1]
115
tALL
AO-7
Valid Before Trailing Edge
of
ALE
90
t
ARy
READY valla from Aaaress valla
220
tr.A
Aaaress
(AS-15)
valla
After
control
120
tcc
Width
of
Control
low
(RD,
WR,
INTA)
Edge
of
ALE
400
tCl
Trailing Edge
of
Control
to
leading
Edge
.
of
ALE
50
tow
Data Valid
to
Trailing Edge
of
WRITE
420
tHABE
HlDA
to
Bus Enable
210
tHABF
Bus Float After
HlDA
210
t
HACK
HlDA
Valid
to
Trailing Edge
of
ClK
110
tHDH
HOLD Hold Time
0
t
HDS
HOLD Setup Time
to
Trailing Edge
of
ClK
170
tlNH
INTA
HOla
Time
0
tINS
INTR,
RS1,
and TRAP Setup Time
to
Falling Edge
of
ClK
160
tLA
Address Hold Time
After
ALE
100
t
LC
Trailing Edge
of
ALE
to
leading
Edge
of
Control
130
tLCK
ALE
low
During
ClK
High
100
tLDR
ALE
to
valla
Data During
Read
460
tLDW
ALE
to
Valid Data During
write
200
tLL
ALE Width
140
t
LRy
ALE
to
READY Stable
110
6-28
8085A·2
12J
Min.
Max.
200
2000
40
70
30
30
100
30
110
115
115
350
0
50
50
100
60
230
~
230
150
150
40
0
120
0
150
50
60
50
270
120
80
30
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AFN-01242C
I
....
II
II
I,
I
I
I
I