Datasheet

DS10668 Rev 6 109/126
STM32L031x4/6 Package information
120
7.5 UFQFPN28 package information
Figure 46. UFQPN28 - 28-lead, 4 x 4 mm, 0.5 mm pitch, ultra thin fine pitch quad flat
package outline
1. Drawing is not to scale.
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Table 73. UFQPN28 - 28-lead, 4 x 4 mm, 0.5 mm pitch, ultra thin fine pitch quad flat
package mechanical data
(1)
Symbol
millimeters inches
Min Typ Max Min Typ Max
A 0.500 0.550 0.600 0.0197 0.0217 0.0236
A1 - 0.000 0.050 - 0.0000 0.0020
D 3.900 4.000 4.100 0.1535 0.1575 0.1614
D1 2.900 3.000 3.100 0.1142 0.1181 0.1220
E 3.900 4.000 4.100 0.1535 0.1575 0.1614
E1 2.900 3.000 3.100 0.1142 0.1181 0.1220
L 0.300 0.400 0.500 0.0118 0.0157 0.0197
L1 0.250 0.350 0.450 0.0098 0.0138 0.0177
T - 0.152 - - 0.0060 -
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