mc68ec030 Freescale Semiconductor, Inc, mc68ec030 Datasheet - Page 20

• Manufacturer Part Number: mc68ec030
• Description: Second-generation 32-bit Enhanced Embedded Controller
• Manufacturer: Freescale Semiconductor, Inc

MAXIMUM RATINGS
THERMAL CHARACTERISTICS-- PGA PACKAGE
POWER CONSIDERATIONS
2 0
Supply Voltage
Input Voltage
Operating Temperature Range
Storage Temperature Range
Thermal Resistance - Plastic
where:
For most applications, P I/O <P INT and can be neglected.
The following is an approximate relationship between P D and T J (if P I/O is neglected):
Solving Equations (1) and (2) for K gives:
where K is a constant pertaining to the particular part. K can be determined from equation (3) by
measuring P D (at thermal equilibrium) for a known T A . Using this value of K, the values of P D and T J can
be obtained by solving equations (1) and (2) iteratively for any value of T A .
The average chip-junction temperature, TJ, in
Minimum Ambient Temperature
Maximum Ambient Temperature
Junction to Ambient
Junction to case
T A
P D
P INT
P I/O
J A
Characteristic
= Ambient Temperature,
= Package Thermal Resistance, Junction-to-Ambient,
= P INT + P I/O
= I CC
= Power Dissipation on Input and Output Pins — User Determined
Rating
X
V CC , Watts — Chip Internal Power
ELECTRICAL SPECIFICATIONS
Freescale Semiconductor, Inc.
Symbol V a l u e Rating
For More Information On This Product,
MC68EC030 TECHNICAL DATA
JA
JC
o
C
Symbol
Go to: www.freescale.com
TBD
V CC
T stg
V in
T A
T A
32
T J =T A +(P D • JA)
P D =K
K=P D • (T A + 273
o
C can be obtained from:
o
C/W
-0.3 to +7.0
-0.5 to +7.0
-55 to 150
V a l u e
(T J +273
70
0
o
C)
o
C) + JA •P D
o
C/W
Unit
V
V
C
C
The device contains circuitry to
protect the inputs against damage
due to high static
electric fields; however,
precautions should be taken to
avoid application of voltages higher
than maximum-rated voltages to
these
Tying
appropriate logic voltage level (e.g.,
either GND or V CC ) enhances
reliability of operation.
2
unused
high-impedance
M O T O R O L A
inputs
voltages or
(1)
(2)
(3)
to
circuits.
normal
the