ST72F321J ST Microelectronics, ST72F321J Datasheet - Page 167

• Manufacturer Part Number: ST72F321J
• Description: 8-BIT MCU
• Manufacturer: ST Microelectronics

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DataSheet
13.2 THERMAL CHARACTERISTICS
Notes:
1. The power dissipation is obtained from the formula P
and P
2. The average chip-junction temperature can be obtained from the formula T
4
PORT
U
Symbol
.com
T
R
Jmax
P
thJA
is the port power dissipation determined by the user.
D
Package thermal resistance (junction to ambient)
Power dissipation
Maximum junction temperature
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1)
Ratings
D
=P
2)
INT
+P
PORT
TQFP44 10x10
where P
J
= T
INT
A
is the chip internal power (I
+ P
D
x RthJA.
Value
150
500
52
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ST72321J
°C/W
DD
Unit
mW
167/179
°C
xV
4U
4U.com
4U
DD
)
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