NXP PCA85063ATT

Mfr. Part

PCA85063ATT

Manufacturer

Freescale / NXP Semiconductors. Y-IC is a quality distributor for NXP and we are committed to delivering genuine parts, stable supply, and responsive technical and logistics support.

Detailed Description

Ultra low power real-time clock and calendar IC with I2C interface. Keeps seconds, minutes, hours, day, weekday, month, and year with automatic leap-year correction. Includes alarm, timer, and a programmable clock output for system timing. Designed for battery-powered and always-on timekeeping in compact embedded designs. Fits the Integrated Circuits category and the Specialized ICs subcategory. Current available lot size is 2200 pieces.

Key Features

I2C bus interface supporting Standard and Fast mode up to 400 kHz

32.768 kHz quartz crystal interface with integrated oscillator

Timekeeping registers for seconds to years with leap-year handling

One or more alarms and countdown timer for wake-up or periodic events

Programmable CLKOUT pin with common outputs such as 32.768 kHz, 1 kHz, 1 Hz

Oscillator stop and power failure flags for diagnostics

Digital offset or calibration register to trim crystal accuracy

Very low timekeeping current for long battery life

Wide supply range typically compatible with 1.8 V to 5 V systems

Industrial temperature range support typical from -40 C to +85 C

ESD protection and latch-up robustness per industry standards

Key Advantages

Extends battery life thanks to ultra low current in timekeeping mode

Small footprint simplifies placement in dense PCBs and wearables

Stable and accurate time base with easy software calibration

Simple two-wire I2C control reduces MCU pin count and firmware overhead

Flexible clock output lets you clock other circuits without extra oscillators

Alarm and timer functions enable low power system wake-up scheduling

Mature NXP platform with strong application notes and ecosystem support

Packaging

Package type SOT1057 per NXP code. This orderable is commonly supplied as a 10-pin small-outline package for space-constrained designs

Material epoxy molded plastic body with tin plated leads for reliable solderability

Size compact 10-lead footprint. Refer to the SOT1057 package drawing on the datasheet for exact body dimensions and land pattern

Pin configuration typical 10 pins including VDD, VSS GND, SCL, SDA, CLKOUT, INT or INTn, oscillator pins for 32.768 kHz crystal, and configuration pins depending on variant

Lead pitch fine pitch suitable for high-density layouts. Use the package drawing for the exact pitch and pad recommendations

Tape and reel packaging for automated assembly. Typical reel quantities align with 2200 units per full reel

Thermal characteristics low power dissipation with minimal self-heating. Follow JEDEC JESD51 methods for board-level thermal estimates and keep the device within its rated operating temperature

Electrical properties typical supply range supports common 1.8 V, 3.3 V, and 5 V rails, I2C up to 400 kHz, oscillator nominal 32.768 kHz. Use the datasheet electrical tables for exact min typ max values

Lifecycle

Status understood to be Active and in volume production

Not near end of life based on current market availability

Equivalent or alternative options to consider

- NXP PCF85063A similar low power I2C RTC with comparable functions

- NXP PCF85263A superset RTC with richer alarm and timer features

- NXP PCF2129A family higher feature set and versions with SPI interface

- Microchip MCP7940N I2C RTC with battery switchover and SRAM different pinout and features

- Epson RX-8010 series integrated RTC options small packages and low current different pinout

- TI BQ32000 or BQ32002 I2C RTCs with trickle charger options different pinout and features

Always verify pinout, supply range, address, and feature compatibility before substitution. If you need a drop-in replacement short list for your PCB and firmware version, contact Y-IC sales via our website and we will curate exact-fit alternatives for you

Key Application Areas

Smart meters and data loggers that need precise time stamps

Wearables, trackers, and sports electronics with tight power budgets

IoT sensor nodes and wireless modules needing timed wake-ups

Industrial control panels and PLC add-ons maintaining time across power cycles

Medical and portable instruments with real-time scheduling

Printers, POS terminals, and kiosks for event logging

Consumer electronics clocks, cameras, set-top boxes

Automotive infotainment or body electronics when grade and temperature range are suitable

Datasheet

The most authoritative datasheet for PCA85063ATT is available on our website. We recommend downloading it directly from this product page to get the exact electrical characteristics, package drawing SOT1057, pin descriptions, and application notes.

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