Datasheet

DS10668 Rev 6 107/126
STM32L031x4/6 Package information
120
7.4 UFQFPN32 package information
Figure 43. UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat
package outline
1. Drawing is not to scale.
2. There is an exposed die pad on the underside of the UFQFPN package. It is recommended to connect and
solder this backside pad to PCB ground.
Table 72. UFQFPN32 - 32-pin, 5x5 mm, 0.5 mm pitch ultra thin fine pitch quad flat
package mechanical data
Symbol
millimeters inches
(1)
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Min Typ Max Min Typ Max
A 0.500 0.550 0.600 0.0197 0.0217 0.0236
A1 - - 0.050 - - 0.0020
A3 - 0.152 - - 0.0060 -
b 0.180 0.230 0.280 0.0071 0.0091 0.0110
D 4.900 5.000 5.100 0.1929 0.1969 0.2008
D1 3.400 3.500 3.600 0.1339 0.1378 0.1417
D2 3.400 3.500 3.600 0.1339 0.1378 0.1417
E 4.900 5.000 5.100 0.1929 0.1969 0.2008
E1 3.400 3.500 3.600 0.1339 0.1378 0.1417
E2 3.400 3.500 3.600 0.1339 0.1378 0.1417
e - 0.500 - - 0.0197 -
L 0.300 0.400 0.500 0.0118 0.0157 0.0197
ddd - - 0.080 - - 0.0031
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