PCF85263ATSLASHA datasheet(39/102 Pages) NXP

Part #	PCF85263AT/A

Description	Tiny RTC/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input, and I2C-bus

PDF	102 Pages

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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NXP Semiconductors

PCF85263A

Tiny RTC/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input, and I2C-bus

trigger event

aaa-009638

interrupt

flag

128 Hz clock

Minimum

interrupt

period

Maximum

interrupt

period

Flag does not need to be cleared

for interrupts to be generated

Figure 22. Interrupt pulse width

In level mode, the interrupt signal follows the state of the flag. Only interrupts that are enabled affect the pin

state. All enabled flags must be cleared for the interrupt signal to be cleared.

The EMON is used only for monitoring

all flags and can be read back in the minutes register. For details, see

Section 7.2.3.

7.9.2 Interrupt enable bits

The remainder of the bits in register INTA_enable (address 29h) and register INTB_enable (address 2Ah) are

used to select the destination for interrupt data. For details, see Figure 23.

PCF85263A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5.4 — 12 December 2025

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PCF85263AT/A Datasheet(PDF) 39 Page - NXP Semiconductors