PCF85263A

For best experience this site requires Javascript to be enabled. To enable on your browser, follow our accessibility instructions.

Roll over image to zoom in

The PCF85263A is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption and with automatic switching to battery on main power loss. The RTC can also be configured as a stop-watch (elapsed time counter). Three time log registers triggered from battery switch-over as well as input driven events. Featuring clock output and two independent interrupt signals, two alarms, I²C interface and quartz crystal calibration.

Data Sheet

Application Notes

Product Details

Block Diagram

Choose a diagram:

PCF85263A
PCF85263A Application

PCF85263A

PCF85263A Application

Get diagram PDF

Features

Key Features

UL Recognized Component (PCF85263ATL)
Provides year, month, day, weekday, hours, minutes, seconds and 100th seconds based on a 32.768 kHz quartz crystal
Stop-watch mode for elapsed time counting. From 100th seconds to 999999 hours
Two independent alarms
Battery back-up circuit
WatchDog timer
Three timestamp registers
Two independent interrupt generators plus predefined interrupts at every second, minute, or hour
Frequency adjustment via programmable offset register
Clock operating voltage: 0.9 V to 5.5 V
Low current; typical 0.28 μA at V_DD = 3.0 V and T_amb = 25 °C
400 kHz two-line I²C-bus interface (at V_DD = 1.8 V to 5.5 V)
Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
Configurable oscillator circuit for a wide variety of quartzes: C_L = 6 pF, C_L = 7 pF, and C_L = 12.5 pF

Product Programs

Product Longevity

Participating products are available for a minimum of 10 years. Designated participating products developed for the automotive, telecom and medical segments are available for a minimum of 15 years.

Buy/Parametrics

‌ ‌ ‌	‌ ‌	‌ ‌	‌ ‌	‌ ‌	‌ ‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌
‌ ‌ ‌	‌	‌	‌	‌	‌

Design Resources

Design Files

Quick reference to our design files types.

2 design files

Receive the full breakdown. See the product footprint and more in the eCad file.

Symbols and Footprints
PCF85263ATT1_A-TSSOP8-CAD Symbol and PCB Footprint – BXL File

ZIPRev 1Jul 9, 2020 14:03:0048.2 KBPCF85263ATT1_A-TSSOP8-BXL
DownloadToggle Dropdown
- Add to Queue
- Remove from Queue
- Recommended for large file sizes.
- View Queue
Symbols and Footprints
PCF85263ATT1-A-TSSOP8-CAD Symbol and PCB Footprint – BXL File

ZIPRev 1Sep 22, 2020 11:16:0048.2 KBPCF85263ATT1-A-TSSOP8-BXL
DownloadToggle Dropdown
- Add to Queue
- Remove from Queue
- Recommended for large file sizes.
- View Queue

Hardware

Quick reference to our board types.

2 hardware offerings

Evaluation and Development Boards
PCF85263A I²C-Bus Evaluation Board

OM13510
Evaluation and Development Boards
PCF85263ATL-ARD Arduino® Shield - Tiny Real-Time Clock

PCF85263ATL-ARD

Engineering Services

To get further assistance directly from NXP, please see our Engineering Services.

1 engineering service

^{Independent Design House (IDH)}
NFC hardware design review and consulting

By GMMC GmbH GoldHQ: Graz, AustriaSupporting Regions: EMEA, Americas, APAC

To find additional partner offerings that support this product, visit our Partner Marketplace.

Support

What do you need help with?

Recommended Communities

Other NXP Products

Tiny Real-Time Clock/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input and I²C-Bus

Product Details

Block Diagram

PCF85263A

PCF85263A Application

Features

Key Features

Product Programs

Product Longevity

Applications

Consumer

Industrial

Buy/Parametrics

Documentation

Filter by

Design Resources

Design Files

Filter by

PCF85263ATT1_A-TSSOP8-CAD Symbol and PCB Footprint – BXL File

PCF85263ATT1-A-TSSOP8-CAD Symbol and PCB Footprint – BXL File

Filter By

Hardware

Filter By

Filter By

Engineering Services

Filter by

Support

What do you need help with?

Recommended Communities