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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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PCF85263ATL/AX Scheda tecnica(PDF) 43 Page - NXP Semiconductors |
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PCF85263ATL/AX Scheda tecnica(HTML) 43 Page - NXP Semiconductors |
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43 / 92 page  NXP Semiconductors PCF85263A Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus 7.11.3.2 Switching at the VBAT level, BSM[1:0] = 01 aaa-010425 internal power supply cleared via interface BSF Vth VDD (= 0 V) VBAT VDD INTA battery mode indication interface active interface inactive interface active I2C Figure 26. Switching at VBAT 7.11.3.3 Switching at the higher of VBAT or Vth level, BSM[1:0] = 10 With this mode switching takes place when VDD falls below the higher of Vth or VBAT. In Figure 27, an example is given where the threshold is set to 1.5 V and a single cell battery is connected to VBAT. In this example, switching to the battery voltage takes place when VDD falls below Vth. PCF85263A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 5 — 1 February 2021 43 / 92 |
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