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| CD00001237 Datasheet, PDF (93/105 Pages) STMicroelectronics – 8-bit MCUs with A/D converter | |||
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ST6215C ST6225C
12.2 THERMAL CHARACTERISTICS
Symbol
RthJA
PD
TJmax
Ratings
Package thermal resistance (junction to ambient)
DIP28
SO28
SSOP28
Power dissipation 1)
Maximum junction temperature 2)
Value
55
75
110
500
150
Unit
°C/W
mW
°C
Notes:
1. The power dissipation is obtained from the formula PD = PINT + PPORT where PINT is the chip internal power (IDDxVDD)
and PPORT is the port power dissipation determined by the user.
2. The average chip-junction temperature can be obtained from the formula TJ = TA + PD x RthJA.
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