
Electrical Characteristics
MOTOROLA
MC68302 USER’S MANUAL
6-3
6.4 POWER DISSIPATION
NOTES:
1.Values measured with maximum loading of 130 pF on all output pins. Typical means 5.0 V at 25
means guaranteed maximum over maximum temperature (85
°
C) and voltage (5.5 V).
2.The IMP is tested with the M68000 core executing, all three baud rate generators enabled and clocking at a rate of
64 kHz, and the two general-purpose timers running with a prescaler of 256. Power measurements are not
significantly impacted by baud rate generators or timers until their clocking frequency becomes a much more
sizable fraction of the system frequency than in these test conditions.
3.The M68000 core will not operate at 4 MHz. This is only for low power mode.
°
C. Maximum
Characteristic
Symbol
Typ
Max
Unit
Power Dissipation at 25 MHz- Rev C.8
μ
(see Notes 1 & 2)
PD
85
130
mA
Power Dissipation at 25 MHz -Rev C.65
μ
(see Notes 1 & 2)
PD
65
90
mA
Power Dissipation at 20 MHz-Rev C.8
μ
(see Notes 1 & 2)
PD
65
100
mA
Power Dissipation at 20 MHz-Rev C.65
μ
(see Notes 1 & 2)
PD
50
80
mA
Power Dissipation at 16.67 MHz-Rev C.8
μ
(see Notes 1 & 2)
PD
54
85
mA
Power Dissipation at 16.67 MHz-Rev C.65
μ
(see Notes 1 & 2)
PD
44
70
mA
Power Dissipation at 4 MHz-Rev C.8
μ
(see Notes 1,2 & 3)
PD
40
-
mA
Power Dissipation at 4 MHz-Rev C.65
μ
(see Notes 1, 2 & 3)
PD
27
-
mA
Power Dissipation at 3.3V 20 MHz-Rev C.65
μ
(see Note 2)
PD
30
60
mA
Power Dissipation at 3.3V 16.67 MHz-Rev C.65
μ
(see Note 2)
PD
25
50
mA