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PCF85263ATL/A bảng dữ liệu(PDF) 43 Page - NXP Semiconductors

tên linh kiện PCF85263ATL/A
Giải thích chi tiết về linh kiện  Tiny Real-Time Clock/calendar with alarm function, battery switch-over, time stamp input, and I2C-bus
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PCF85263ATL/A bảng dữ liệu(HTML) 43 Page - NXP Semiconductors

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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
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