MC68000 MOTOROLA [Motorola, Inc], MC68000 Datasheet - Page 289

• Manufacturer Part Number: MC68000
• Manufacturer: MOTOROLA [Motorola, Inc]

SECTION 6
ELECTRICAL CHARACTERISTICS
The AC specifications presented consist of output delays
signal skew times. All signals are specified relative to an appropriate edge of the clock (CL-
KO pin) and possibly to one or more other signals.
6.1 MAXIMUM RATINGS
6.2 THERMAL CHARACTERISTICS
MOTOROLA
Supply Voltage
Input Voltage
Operating Temperature Range
Storage Temperature Range
Thermal Resistance for PGA
Thermal Resistance for CQFP
Thermal Resistance for PQFP
T
P
where:
For T
package, the worst case value of T
MC68302
MC68302C
J
D
P
= T
T
= (V
I/O
J
A
A
= 70 C + (5.5 V 30 mA 40 C/W) = 98.65C
is the power dissipation on pins.
= 70 C and P
+ (P
DD
Characteristic
D
I
DD
Rating
) + P
A
)
I/O
I/O
+ 0 W, 16.67 MHz, 5.5 V, and CQFP
J
is:
Symbol
Symbol
MC68302 USER’S MANUAL
V
T
V
T
DD
JC
JC
JC
JA
JA
JA
stg
in
A
- 0.3 to + 7.0
- 0.3 to + 7.0
- 55 to + 150
- 40 to 85
0 to 70
Value
Value
25
40
15
42
20
2
,
Unit
Unit
C/W
C/W
C/W
C/W
C/W
C/W
input setup and hold times
V
V
C
C
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 his high-impedance circuit.
Reliability of operation is en-
hanced if unused inputs are tied to
an appropriate logic voltage level
(e.g., either GND or V
DD
)
,
and
6-1