Intel 80L186EA - Manual (Page 21)

80C186EA 80C188EA 80L186EA 80L188EA
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings
Storage Temperature b 65 C to a 150 C
Case Temperature under Bias b 65 C to a 150 C
Supply Voltage with Respect
to V
SS b 0 5V to a 6 5V
Voltage on Other Pins with Respect
to V
SS b 0 5V to V
CC a 0 5V
NOTICE This data sheet contains preliminary infor-
mation on new products in production It is valid for
the devices indicated in the revision history The
specifications are subject to change without notice
WARNING Stressing the device beyond the ‘‘Absolute
Maximum Ratings’’ may cause permanent damage
These are stress ratings only Operation beyond the
‘‘Operating Conditions’’ is not recommended and ex-
tended exposure beyond the ‘‘Operating Conditions’’
may affect device reliability
Recommended Connections
Power and ground connections must be made to
multiple V
CC
and V
SS
pins Every 80C186EA based
circuit board should contain separate power (V
CC
)
and ground (V
SS
) planes All V
CC
and V
SS
pins must
be connected to the appropriate plane Pins identi-
fied as ‘‘N C ’’ must not be connected in the system
Decoupling capacitors should be placed near the
processor The value and type of decoupling capac-
itors is application and board layout dependent The
processor can cause transient power surges when
its output buffers transition particularly when con-
nected to large capacitive loads
Always connect any unused input pins to an appro-
priate signal level In particular unused interrupt pins
(NMI INT3 0) should be connected to V
SS
to avoid
unwanted interrupts Leave any unused output pin
or any ‘‘N C ’’ pin unconnected
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