MC68LC302 Datasheet, PDF (119/169 Pages) Motorola, Inc – Low Power Integrated Multiprotocol Processor Reference Manual

Electrical Characteristics
6.1 MAXIMUM RATINGS
Rating
Supply Voltage
Input Voltage
Operating Temperature Range
MC68302
MC68302C
Storage Temperature Range
Symbol
V_DD
V_in
T_A
T_stg
Value
- 0.3 to + 7.0
- 0.3 to + 7.0
0 to 70
- 40 to 85
- 55 to + 150
6.2 THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance for PGA
Thermal Resistance for TQFP
Symbol
θ_JA
θ_JC
θ_JA
θ_JC
Value
25
2
TBD
TBD
Unit ^{This device contains circuitry to}
protect the inputs against damage
V ^{due to high static voltages or elec-}
tric fields; however, it is advised
V ^{that normal precautions be taken}
to avoid application of any voltage
higher than maximum-rated volt-
°C
ages to his high-impedance circuit.
Reliability of operation is en-
hanced if unused inputs are tied to
an appropriate logic voltage level
°C (e.g., either GND or V_DD)
Unit
°C/W
°C/W
°C/W
°C/W
T_J = T_A + (P_D ⋅ _A)
P_D = (V_DD ⋅ I_DD) + P_I/O
where:
P_I/O is the power dissipation on pins.
For T_A = 70°C and P_I/O + 0 W, 16.67 MHz, 5.5 V, and CQFP
package, the worst case value of T_J is:
T_J = 70°C + (5.5 V ⋅ 30 mA ⋅ 40°C/W) = 98.65C
6-2
MC68LC302 REFERENCE MANUAL
MOTOROLA