NXP UM10698 demo board User

The PCF85063x are a family of CMOS Real-Time Clocks (RTC) and calendar optimized for low power consumption. Different features sets are available. The OM11059A is the ideal evaluation/demo board to use in the design phase of any project, just power and I2C-bus must be hooked up. A separate demoboard and a user manual are available for the SPI-bus RTC

Brand: NXP
Category: demo board
Document type: User Manual
Language: English
Pages: 15
File format: PDF
File size: 478 KB
Published: 30 May, 2014
Updated: 25 September, 2023
MD5 checksum: 0A8D704DF6D346CA4C879EDB604F4989
PDF: NXP UM10698 demo board User PDF

About this manual

This manual describes the NXP OM11059A demo board, which is designed to evaluate the PCF85063TP and PCF85063ATL Real-Time Clock (RTC) chips. The board allows users to easily demonstrate the operation of these RTCs with an I2C-bus interface without the need to solder tiny packages to breadboards. It supports both the basic PCF85063TP and the enhanced PCF85063ATL variants.

What's inside

Introduction
Key features
Hardware set-up
Demo board OM11059A
Software set-up
Functionality
System testing
Setting the clock
Reading the clock

Specifications

Interface speed	400 kHz
Supply voltage	0.9 V to 5.5 V
I2C-bus interface voltage	1.8 V to 5.5 V
Power consumption	below 1 μW

Frequently asked questions

What RTC variants are available on the OM11059A demo board?

The board contains two RTC variants: the PCF85063TP with basic functionality and the PCF85063ATL with enhanced functionality.

How do I select which RTC chip is active on the board?

You can select the active RTC by setting the jumpers J1 and J2 on the board.

What is the maximum operating frequency of the I2C-bus interface?

The interface operates at standard Fast Mode I2C-bus, up to 400 kHz.

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