PCF2131-ARD
Overview
The PCF2131-ARD is an evaluation expansion board designed to demonstrate the PCF2131 ultra-accurate Real Time Clock (RTC) with integrated temperature compensation. This Arduino-compatible shield provides a complete hardware platform for testing timekeeping, frequency output, and security timestamping features. It includes a battery holder for switch-over circuit evaluation and supports both I2C and SPI bus interfaces.
Why Choose This Part
This board simplifies RTC integration by providing a pre-validated layout with an adjustable voltage regulator and a dedicated battery backup circuit. It features four independent timestamp inputs and a programmable watchdog, allowing engineers to prototype complex system-monitoring tasks quickly. The inclusion of an Aardvark header and Arduino ports ensures compatibility with a wide range of host controllers and PC-based GUI tools.
Applications
Key Specifications
Getting Started
Connect the PCF2131-ARD to an Arduino-compatible baseboard or use the Aardvark header for direct PC control via USB. Engineers should install the NXP graphical user interface (GUI) to configure the RTC registers and monitor the temperature-compensated frequency outputs without writing custom code. The board supports temperature ranges from -40C to +85C for testing in varied environments.
