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SECTION 6
ELECTRICAL CHARACTERISTICS
The AC specifications presented consist of output delays, input setup and
hold times, and signal skew times. All signals are specified relative to an
appropriate edge of the clock (CLKO pin) and possibly to one or more other
signals.
6.1 MAXIMUM RATINGS
Rating
Symbol
Supply Voltage
Voo
Input Voltage
Vin
Operating Temperature Range
TA
MC68302
MC683021
Storage Temperature Range
~
6.2 THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance for PGA
TJ = TA+(Po•6JA)
Po = !Voo·lool + P110
where:
P110 is the power dissipation on pins.
For TA=70°C and Po=0.5 W
(11
12.5 MHz
TJ
=
88°C
Symbol
6JA
Value
Unit
-0.3 to +7.0
v
-0.3 to +7.0
v
oc
0 to 70
Oto 85
-55 to +150
oc
Value
Unit
33
oc!W
MOTOROLA
MC68302 USER'S MANUAL
This device contains circuitry to
protect the inputs against damage
due to high static voltages or elec-
tric fields; however, it is advised that
normal precautions be taken to
avoid application of any voltage
higher than maximum-rated volt-
ages to this high-impedance circuit.
Reliability of operation is enhanced
if unused inputs are tied to an ap-
propriate logic voltage level (e.g.,
either GND or Voo).
6-1
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