MPC8544DS Freescale Semiconductor, MPC8544DS Datasheet - Page 104
![BOARD DEVELOPMENT SYSTEM 8544](/photos/37/58/375876/mpc8544e_sml.jpg)
MPC8544DS
Manufacturer Part Number
MPC8544DS
Description
BOARD DEVELOPMENT SYSTEM 8544
Manufacturer
Freescale Semiconductor
Series
PowerQUICC III™r
Type
MPUr
Datasheets
1.MPC8544VTALF.pdf
(117 pages)
2.MPC8544VTALF.pdf
(2 pages)
3.MPC8544VTALF.pdf
(1340 pages)
4.MPC8544DS.pdf
(2 pages)
Specifications of MPC8544DS
Contents
Board
Processor To Be Evaluated
MPC8544E
Data Bus Width
32 bit
Interface Type
Ethernet, I2C
Operating Supply Voltage
- 0.3 V to + 1.1 V
Leaded Process Compatible
Yes
Peak Reflow Compatible (260 C)
Yes
Rohs Compliant
Yes
For Use With/related Products
MPC8544
For Use With
PPC8544EVTANG - EVAL MPC8544 783FCPBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- MPC8544VTALF PDF datasheet
- MPC8544VTALF PDF datasheet #2
- MPC8544VTALF PDF datasheet #3
- MPC8544DS PDF datasheet #4
- Current page: 104 of 117
- Download datasheet (2Mb)
Thermal
20.3.4
The MPC8544E has a temperature diode on the microprocessor that can be used in conjunction with other
system temperature monitoring devices (such as Analog Devices, ADT7461™). These devices use the
negative temperature coefficient of a diode operated at a constant current to determine the temperature of
the microprocessor and its environment. It is recommended that each device be individually calibrated.
The following are voltage forward biased range of the on-board temperature diode:
An approximate value of the ideality may be obtained by calibrating the device near the expected operating
temperature. The ideality factor is defined as the deviation from the ideal diode equation:
Another useful equation is:
104
V
V
f
f
> 0.40 V
< 0.90 V
Temperature Diode
V
I
fw
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
H
= I
– V
s
L
8
7
6
5
4
3
2
1
e
= n
nKT – 1
0
qV
KT
f
q
ln
0.5
Figure 64. Approach Air Velocity (m/s)
I
I
H
L
1
1.5
Thermalloy #2328B Pin-fin Heat Sink
2
(25 × 28 × 15 mm)
2.5
3
Freescale Semiconductor
3.5
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