A
Table A-2 Typical Ratings, 16.78 MHz Operation
Num
Rating
Symbol
Value
Unit
1 Supply Voltage
VDD
5.0
V
2 Operating Temperature
TA
25
°C
3 VDD Supply Current
IDD
RUN
LPSTOP, VCO off
LPSTOP, External clock, maxi fsys
75
mA
125
µA
3
mA
4 Clock Synthesizer Operating Voltage
VDDSYN
5.0
V
5 VDDSYN Supply Current
VCO on, maximum fsys
External Clock, maximum fsys
LPSTOP, VCO off
VDD powered down
IDDSYN
1.0
mA
4.0
mA
100
µA
50
µA
6 Power Dissipation
PD
455
mW
Table A-2a Typical Ratings, 20.97 MHz Operation
Num
Rating
Symbol
Value
Unit
1 Supply Voltage
VDD
5.0
V
2 Operating Temperature
TA
25
°C
3 VDD Supply Current
IDD
RUN
LPSTOP, VCO off
LPSTOP, External clock, maxi fsys
113
mA
125
µA
3.75
µA
4 Clock Synthesizer Operating Voltage
VDDSYN
5.0
V
5 VDDSYN Supply Current
VCO on, maximum fsys
External Clock, maximum fsys
LPSTOP, VCO off
VDD powered down
IDDSYN
1.0
mA
5.0
mA
100
µA
50
µA
6 Power Dissipation
PD
570
mW
MOTOROLA
A-2
ELECTRICAL CHARACTERISTICS
MC68331
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