Electrical Characteristics; Maximum Ratings; Thermal Considerations - Motorola MC68020 User Manual

SECTION 10

ELECTRICAL CHARACTERISTICS

This section provides the thermal characteristics and electrical specifications for the
MC68020/EC020. Note that the thermal and DC electrical characteristics are listed
separately for the MC68020 and the MC68EC020. All other data applies to both the
MC68020 and the MC68EC020 unless otherwise noted.

10.1 MAXIMUM RATINGS

Rating
Supply Voltage
Input Voltage
Operating Temperature Range
Minimum Ambient Temperature
Maximum Ambient Temperature
PGA, PPGA, PQFP
Maximum Junction Temperature
CQFP
Storage Temperature Range

10.2 THERMAL CONSIDERATIONS

The average chip-junction temperature, T
where:
= Ambient Temperature, °C
T
A
θ = Package Thermal Resistance, Junction-to-Ambient, °C/W
JA
P = P + P
D INT
P = I V
INT CC X
P = Power Dissipation on Input and Output Pins—User Determined
I/O
For most applications, P
An approximate relationship between P
MOTOROLA
Symbol
V
CC
V
in
T
A
T
A
T
J
T
stg
T = T
J
I/O
, Watts—Chip Internal Power
CC
< P and can be neglected.
I/O INT
D
= K ÷ (T
P
D
M68020 USER'S MANUAL
Value Unit
–0.3 to +7.0 V
–0.5 to +7.0 V
°C
0
°C
70
°C
110
°C
–55 to 150
, in °C can be obtained from:
J
• θ
+ (P )
A D JA
and T (if P is neglected) is:
J I/O
+ 273°C)
J
The device contains circuitry to
protect the inputs against damage
due to high static voltages or electric
fields; however, normal precautions
should be taken to avoid application
of voltages higher than maximum-
rated voltages to these high-
impedance circuits. Tying unused
inputs to the appropriate logic
voltage level (e.g., either GND or
V C C ) enhances reliability
operation.
(10-1)
(10-2)
of
10-1