MC68EC040RC25 Freescale Semiconductor, MC68EC040RC25 Datasheet - Page 350

• Manufacturer Part Number: MC68EC040RC25
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC040RC25

• 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: Through Hole
• Pin Count: 179
• Package Type: PGA
• Lead Free Status / Rohs Status: Supplier Unconfirmed

11.9.4 With Heat Sink and Forced Air
In the specification provided by Thermalloy, Inc., a chart illustrates the air velocity versus
thermal resistance. This chart applies if airflow is used with the heat sink. Table 11-6 lists
the calculations based on this chart.
11-22
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
20
25
33
20
25
33
20
25
33
20
25
33
Airflow Velocity
Thermal Mgmt.
Technique
200 LFM
400 LFM
600 LFM
800 LFM
200 LFM
400 LFM
600 LFM
800 LFM
Table 11-6. Thermal Parameters with Heat Sink and Airflow
Freescale Semiconductor, Inc.
10.0W
10.0W
10.0W
10.0W
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
4.0 W
5.0 W
6.3 W
4.0 W
5.0 W
6.3 W
4.0 W
5.0 W
6.3 W
4.0 W
5.0 W
6.3 W
For More Information On This Product,
P
D
Defined Parameters
MC68LC040 and MC68EC040
M68040 USER’S MANUAL
Go to: www.freescale.com
110 C
110 C
110 C
110 C
110 C
110 C
110 C
110 C
T
J
MC68040
3 C/W
3 C/W
3 C/W
3 C/W
3 C/W
3 C/W
3 C/W
3 C/W
JC
M
AX
.
Heat-Sink
4.25 C/W
2.30 C/W
1.50 C/W
1.25 C/W
4.25 C/W
2.30 C/W
1.50 C/W
1.25 C/W
Spec.
CA
7.25 C/W
5.25 C/W
4.50 C/W
4.25 C/W
7.25 C/W
5.25 C/W
4.50 C/W
4.25 C/W
JA
Calculated
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
86.0 C
80.0 C
98.0 C
95.0 C
91.1 C
98.0 C
95.0 C
91.1 C
98.0 C
95.0 C
91.1 C
98.0 C
95.0 C
91.1 C
T
C
MOTOROLA
64.3 C
62.2 C
47.7 C
54.2 C
52.0 C
37.5 C
76.9 C
75.4 C
64.9 C
69.6 C
68.0 C
57.5 C
81.7 C
80.3 C
71.3 C
75.4 C
74.0 C
65.0 C
83.2 C
82.0 C
73.5 C
77.3 C
76.0 C
67.5 C
81.0 C
73.8 C
64.3 C
89.0 C
83.8 C
76.9 C
87.5 C
81.7 C
88.8 C
83.2 C
92.0 C
93.0 C
T
A