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BMP280 数据表(PDF) 40 Page - Bosch Sensortec GmbH |
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BMP280 数据表(HTML) 40 Page - Bosch Sensortec GmbH |
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40 / 49 page ![]() Datasheet BMP280 Digital Pressure Sensor Page 40 BST-BMP280-DS001-19 | Revision 1.19 | January 2018 Bosch Sensortec © Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany. Note: Specifications within this document are subject to change without notice. Not intended for publication. 7.2 Landing pattern recommendation For the design of the landing pattern, the following dimensioning is recommended: Figure 19: Recommended landing pattern (top view); dimensions are in mm Note: red areas demark exposed PCB metal pads. • In case of a solder mask defined (SMD) PCB process, the land dimensions should be defined by solder mask openings. The underlying metal pads are larger than these openings. • In case of a non solder mask defined (NSMD) PCB process, the land dimensions should be defined in the metal layer. The mask openings are larger than the these metal pads. 0.5 0.55 2.0 8 7 6 5 1 2 3 4 |
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