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S2-LP 数据表(PDF) 25 Page - STMicroelectronics |
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S2-LP 数据表(HTML) 25 Page - STMicroelectronics |
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25 / 90 page ![]() S2-LP Specifications DocID029944 Rev 1 25/90 4.9.3 Harmonic emission at 915 MHz Table 29: Harmonic emission at 915 MHz Parameter Test conditions SMPS on Unit H1 CW 14 dBm H2 CW -46 H3 CW -55 H4 CW -46 H5 CW -49 H6 CW -48 H7 CW -51 4.10 Digital interface specification Table 30: Digital SPI input, output and GPIO specification Parameter Test condition Min. Typ. Max. Unit SPI clock frequency 8 10 MHz Port I/O capacitance 1.4 pF Rise time From 0.1*VDD to 0.9*VDD, CL=20 pF (low output current programming) 6.0 ns From 0.1*VDD to 0.9*VDD, CL=20 pF (high output current programming) 2.5 Fall time From 0.1*VDD to 0.9*VDD, CL=20 pF (low output current programming) 7.0 ns From 0.1*VDD to 0.9*VDD, CL=20 pF (high output current programming) 2.5 Logic high level input voltage VDD/2 +0.3 V Logic low level input voltage VDD/8 +0.3 V High level output voltage IOH = -2.4 mA (-4.2 mA into high output current mode). (5/8)* VDD+ 0.1 V Low level output voltage IOL = +2.0 mA (+4.0 mA into high output current mode). 0.5 V CSn low to positive edge on SCLK in ready state 40 µs |
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