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ST72344S2 Datasheet(PDF) 231 Page - STMicroelectronics

Part # ST72344S2
Description  SCI asynchronous serial interface
PDF  247 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72344S2 Datasheet(HTML) 231 Page - STMicroelectronics

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ST72344xx, ST2345xx
Package characteristics
Doc ID 12321 Rev 6
231/247
Table 117.
48-pin low profile quad flat package mechanical data
Dim.
mm
inches (1)
1.
Values in inches are converted from mm and rounded to 4 decimal digits.
Min
Typ
Max
Min
Typ
Max
A
1.60
0.0630
A1
0.05
0.15
0.0020
0.0059
A2
1.35
1.40
1.45
0.0531
0.0551
0.0571
b
0.17
0.22
0.27
0.0067
0.0087
0.0106
C
0.09
0.20
0.0035
0.0079
D
9.00
0.3543
D1
7.00
0.2756
E
9.00
0.3543
E1
7.00
0.2756
e
0.50
0.0197
θ
0°
3.5°
7°
0°
3.5°
7°
L
0.45
0.60
0.75
0.0177
0.0236
0.0295
L1
1.00
0.0394
N
Number of pins
48
Table 118.
Thermal characteristics
Symbol
Ratings
Value (1)
1.
Values given for a 4-layer board. PDmax computed for TA = 125 °C.
Unit
RthJA
Package thermal resistance (junction to ambient)
LQFP32
60
°C/W
LQFP44
54
LQFP48
73
TJmax
Maximum junction temperature (2)
2.
The maximum chip-junction temperature is based on technology characteristics.
150
°C
PDmax
Power dissipation (3)
3.
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 (IDD x VDD) and PPORT is the port power dissipation depending on the
ports used in the application.
LQFP32
415
mW
LQFP44
460
LQFP48
340



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