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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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S2-LPS 데이터시트(PDF) 4 Page - STMicroelectronics |
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S2-LPS 데이터시트(HTML) 4 Page - STMicroelectronics |
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4 / 73 page  The data to be transmitted can be provided by an external MCU either through the 128-byte TX FIFO writable via SPI, or directly using a programmable GPIO pin. The S2-LPS supports frequency hopping, TX/RX and antenna diversity switch control, extending the link range and improving performance. The S2-LPS has a very efficient power management (PM) system. An integrated switched mode power supply (SMPS) regulator allows operation from a battery voltage ranging from +1.8 V to +3.6 V, and with power conversion efficiency of 90%. A crystal must be connected between XIN and XOUT. It is digitally configurable to operate with different crystals. As an alternative, an external clock signal can be used to feed XIN for proper operation. The S2-LPS also has an integrated low-power RC oscillator, generating the 34.7 kHz signal used as a clock for the slowest timeouts. A standard 4-pin SPI bus is used to communicate with the external MCU. Four configurable general purpose I/Os are available. S2-LPS Detailed functional description DS13831 - Rev 1 page 4/73 |
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