PCF85053A - Bootable CPU RTC

Product Overview

NXP

PCF85053A Bootable CPU RTC by NXP - Datasheet Preview — Datasheet preview – PCF85053A

Datasheet Details

Part number	PCF85053A
Manufacturer	NXP
File Size	653.62 KB
Description	Bootable CPU RTC
Datasheet	PCF85053A Datasheet
Additional preview pages of the PCF85053A datasheet.

Product details

Description

The PCF85053A is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption and automatic switching to battery on primary power loss.

Featuring clock output, ALRT (interrupt) output and 128 bytes of battery backup SRAM.

The PCF85053A includes two I2C buses.

Features

Voltage range addresses common supply rails.
VDD supply voltage from 1.7 V to 3.6 V.
VBAT battery supply voltage from 1.55 V to 3.6 V.
Two independent I2C interfaces with up to 400 kHz speed.
Primary I2C bus with Read/write capability on RTC and SRAM registers.
Secondary I2C bus with read/write capability on RTC and SRAM registers enabled by primary I2C.
Both I2C interface supports clock timeout of 35 ms max.
Crystal compat.

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Published: Sep 14, 2024 |