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ST72325 датащи(PDF) 178 Page - STMicroelectronics

номер детали ST72325
подробное описание детали  8-bit MCU with 16 to 60K Flash/ROM, ADC, CSS, 5 timers, SPI, SCI, I2C interface
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13.2 THERMAL CHARACTERISTICS
Notes:
1. The maximum chip-junction temperature is based on technology characteristics.
2. The maximum power dissipation is obtained from the formula PD = (TJ -TA) / RthJA.
The power dissipation of an application can be defined by the user with the formula: PD=PINT+PPORT where PINT is
the chip internal power (IDDxVDD) and PPORT is the port power dissipation depending on the ports used in the applica-
tion.
Symbol
Ratings
Value
Unit
RthJA
Package thermal resistance (junction to ambient)
LQFP64 10x10
LQFP48 7x7
LQFP44 10x10
SDIP42
LQFP32 7x7
SDIP32
50
80
52
55
70
50
°C/W
PD
Power dissipation 1)
500
mW
TJmax
Maximum junction temperature 2)
150
°C



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