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PCF85263AT/A 데이터시트(PDF) 48 Page - NXP Semiconductors |
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PCF85263AT/A 데이터시트(HTML) 48 Page - NXP Semiconductors |
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48 / 100 page ![]() PCF85263A All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved. Product data sheet Rev. 4.1 — 27 November 2015 48 of 100 NXP Semiconductors PCF85263A Tiny RTC with alarm, battery switch-over, and I2C-bus 8.11.3.3 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 26, 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. Fig 26. Switching at the higher of VBAT or Vth |
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