NXP PCA2125 RTC Demo Kit – RTC-DEMO-KIT

The NXP RTC Demo is a reference design for a low power Real Time Clock and LCD solution. The Demo Board is controlled by a simple two-button user interface (MODE and SELECT).

Part #: RTC-DEMO-KIT

Status: End of Life

  • Reference design for low power real time clock and LCD
  • Supports both 14-pin TSSOP PCF2124 and 10-pin HVSON PCA2125 RTC
  • RTC driven by 32.768kHz quartz crystal
  • SPI interface for RTC control
  • Includes 8-character alphanumeric LCD, coin cell battery holder, push-buttons, ICP programming support

>> See the brochure
Overview
Overview

The RTC-DEMO-KIT is a reference design for a low power Real Time Clock and LCD solution. The Demo Board is controlled by a simple two-button user interface (MODE and SELECT). The Demo Board CD includes example code for several sample applications: a programmable time and date display, a programmable countdown timer, and a repeating pattern of text lines. The user can edit this code and download to the reprogrammable Flash microcontroller via a 10-pin header included on the board using any external ICP style programmer.

The flexible PCB layout supports two RTC package options:

14-pin TSSOP for PCF2124
10-pin HVSON for PCA2125
A small USB based ICP programmer that allows ICP programming of the P89LPC932A1 and many other NXP microcontrollers from any PC is available from FDI.

Standard Specs
  • Low power, SPI based Real Time Clock driven by a 32.768 KHz quartz crystal
  • Powered by a single 3V coin cell battery
  • 8-character alphanumeric LCD
  • I²C based LCD driver with 128 segment support
  • Two miniature push-buttons for user control; additional User Interface via header
  • User reprogrammable via 10-pin ICP header
Documentation
Current Documentation

Download all current documentation (zip)

TitleTypeFormatDate 
BrochureBrochurepdf08/13/2008
User's ManualUser's Manualpdf03/11/2004
PCNDocumentpdf08/20/2014
Software
Software

Useful Web Links

TitleTypeFormatDate 
Software Install FilesSoftwarezip03/27/2007
SOFTWARE INSTALL FILESSoftwarezip12/30/2008
RTC DEMO Code v1.00Source Codezip03/27/2007