80C188EB13 datasheet(23/59 Pages) INTEL

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80C186EB80C188EB 80L186EB80L188EB

ELECTRICAL SPECIFICATIONS

Absolute Maximum Ratings

Storage Temperature

65 Cto a150 C

Case Temp under Bias

65 Cto a120 C

Supply Voltage

with Respect to VSS

05V to a 65V

Voltage on other Pins

with Respect to VSS

05V to VCC a 05V

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 VCC and VSS pins Every 80C186EB-based

circuit board should include separate power (VCC)

and ground (VSS) planes Every VCC pin must be

connected to the power plane and every VSS pin

must be connected to the ground plane Pins identi-

fied as ‘‘NC’’ must not be connected in the system

Liberal decoupling capacitance should be placed

near the processor The processor can cause tran-

sient power surges when its output buffers tran-

sition particularly when connected to large capaci-

tive loads

Low inductance capacitors and interconnects are

recommended for best high frequency electrical per-

formance Inductance is reduced by placing the de-

coupling capacitors as close as possible to the proc-

essor VCC and VSS package pins

Always connect any unused input to an appropriate

signal level In particular unused interrupt inputs

(INT04) should be connected to VCC through a pull-

up resistor (in the range of 50 KX) Leave any un-

used output pin or any NC pin unconnected

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