PCF85363ATLSLASHA datasheet(42/86 Pages) NXP

部件名	PCF85363ATL/A

功能描述	Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input, and I2C-bus

PDF	86 Pages

Scroll/Zoom	100%

制造商	NXP [NXP Semiconductors]

网页	http://www.nxp.com

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42 / 86 page

NXP Semiconductors

PCF85363A

Tiny Real-Time Clock/calendar with 64 byte RAM, 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 24. 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 25, 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.

PCF85363A

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Product data sheet

Rev. 3.1 — 18 June 2021

42 / 86

PCF85363ATL/A 数据表(PDF) 42 Page - NXP Semiconductors