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8284A
ABSOLUTE MAXIMUM RATINGS·
Temperature Under Bias
.................
O·C
fo70·C
Storage Temperature
..•...........
-65·C
to
+
150·C
All Output and Supply Voltages
.........
- 0.5V
to
+ 7V
All Input Voltages
...................
-1.0V
to
+5.5V
Power Dissipation
..........................
1 Watt
'NOTICE: Stresses above those listed under "Absolute
Maximum Ratings" may cause permanent damage to the
device.
This
is
a stress rating only and functional opera-
tion
of
the device
at
these
or
any other conditions above
those indicated in the operational sections
of
,this specifi-
cation is
not
implied. Exposure to absolute maximum
rating conditions for extended periods may affect device
reliability.
D,C.
CHARACTERISTICS (TA= O·C
to
70·C,
Vcc=
5V±
10%)
Symbol
Parameter
Min.
IF
Forward Input Current (ASYNC)
Other Inputs
IA
Reverse Input Current (ASYNC)
Other Inputs
Vc
input Forward Clamp Voltage
Icc
Power Supply Current
VIL
Input
lOW
Voltage
VIH
Input HIGH Voltage 2.0
VIHA
Reset Input HIGH Voltage
2.6
VOL
Output
lOW
Voltage
VO
H
Output HIGH Voltage
ClK
4
Other Outputs
2.4
VIHA-
VILA
RES
Input Hysteresis 0.25
A.C. CHARACTERISTICS (TA=O·C
to
70·C,
Vcc=5V±
10%)
TIMING REQUIREMENTS
Symbol
Parameter Min.
tEHEL
External Frequency HIGH Time
13
tELEH
External Frequency
lOW
Time
13
tELEL
EFI
Period
tEHEL
+
tELEH
+ d
XTAl
Frequency
12
tA1VCL
RDY1,
RDY2
Active Setup
to
ClK
35
tR1VCH
RDY1,
RDY2
Active Setup
to
ClK
35
tR1VCL
RDY1,
RDY2
Inactive Setup
to
ClK
35
tCLA1X
RDY1,
RDY2
Hold
to
ClK
0
tAYVCL
ASYNC Setup
to
ClK
50
tCLAYX
ASYNC Hold
to
ClK
0
tA1VA1V
AEN1, AEN2 Setup
to
RDY1,
RDY2
15
tCLA1X
AEN1, AEN2 Hold
to
ClK
0
tYHEH
CSYNC Setup
to
EFI
20
tEHYL
CSYNC Hold to
EFI
20
tYHYL
CSYNCWidth
2·tELEL
tllHCL
RES
Setup to
ClK
65
tCLllH
RES
Hold to
ClK
20
IIUH
Input
Rise
Time
II
LlL
Input Fall Time
67
Max. Units Test Conditions
-1.3
mA
VF=0.45V
-0.5
mA
VF= 0.45V
50
,.A
V
R
= Vcc
50
,.A
VR=5.25V
-1.0
V
Ic=
-5mA
162
mA
0.8 V
V
V
0.45 V
5mA
V
-1mA
V
-1mA
V
Max.
Units Test Conditions
ns
90%-90%
VIN
ns
10%-10%
VIN
ns
(Note
1)
30 MHz
ns
ASYNC=HIGH
ns
ASYNC=lOW
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Note
2)
ns
(Note
2)
20
ns
From
O.SV
10 2.0V
12
ns
From 2.0V
to
O.SV
AFN.Q1472B