MC68040FE25A Freescale Semiconductor, MC68040FE25A Datasheet - Page 346

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MC68040FE25A

Manufacturer Part Number
MC68040FE25A
Description
IC MICROPROCESSOR 32BIT 184-CQFP
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of MC68040FE25A

Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
184-CQFP
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
25MHz
Instruction Set Architecture
RISC
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
184
Package Type
CQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68040FE25A
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
11.9.2 Forced Air
In this study, a small sample of MC68040 packages was tested in forced-air cooling in a
wind tunnel with no heat sink. The test was performed with approximately 6 W of power
being dissipated from within the package. As previously mentioned, since the variance in
purposes that
lists the results of the maximum power dissipation at maximum
heat sink for the MC68040, and Table 11-4 lists the results for the MC68LC040 and
MC68EC040. Refer to Table 11-1 for calculating other power dissipation values.
11-18
JA
MHz
25
25
25
33
33
33
25
25
25
33
33
33
25
25
25
33
33
33
25
25
25
33
33
33
25
25
25
33
33
33
within the possible power range is negligible, it can be assumed for calculation
Airflow Velocity
Thermal Mgmt.
Technique
1000 LFM
100 LFM
250 LFM
500 LFM
750 LFM
JA
Table 11-3. Thermal Parameters with Forced Airflow
is constant at all power levels. Using the previous equations, Table 11-3
Freescale Semiconductor, Inc.
10.0 W
10.0 W
10.0 W
10.0 W
10.0 W
and No Heat Sink for the MC68040
6.3 W
6.6 W
8.6 W
7.7 W
8.0 W
6.3 W
6.6 W
8.6 W
7.7 W
8.0 W
6.3 W
6.6 W
8.6 W
7.7 W
8.0 W
6.3 W
6.6 W
8.6 W
7.7 W
8.0 W
6.3 W
6.6 W
8.6 W
7.7 W
8.0 W
For More Information On This Product,
P
D
Defined Parameters
M68040 USER’S MANUAL
Go to: www.freescale.com
110 C
110 C
110 C
110 C
110 C
T
J
3 C/W
3 C/W
3 C/W
3 C/W
3 C/W
JC
Measured
12.7 C/W
11.0 C/W
9.9 C/W
9.5 C/W
9.3 C/W
JA
9.7 C/W
8.0 C/W
6.9 C/W
6.5 C/W
6.3 C/W
JC
CA
with airflow and no
Calculated
91.1 C
90.2 C
84.9 C
86.9 C
86.0 C
80.0 C
91.1 C
90.2 C
84.2 C
86.9 C
86.0 C
80.0 C
91.1 C
90.2 C
84.2 C
86.9 C
86.0 C
80.0 C
91.1 C
90.2 C
84.2 C
86.9 C
86.0 C
80.0 C
91.1 C
90.2 C
84.2 C
86.9 C
80.0 C
81.8 C
T
C
MOTOROLA
29.90 C
26.18 C
00.76 C
12.21 C
08.40 C
40.70 C
37.40 C
15.40 C
25.30 C
22.00 C
00.00 C
47.63 C
44.66 C
24.86 C
33.77 C
30.80 C
11.00 C
50.15 C
47.30 C
28.30 C
36.85 C
34.00 C
15.00 C
51.41 C
48.62 C
30.02 C
38.39 C
17.00 C
22.58 C
00.00 C
T
A

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