PCF2129AT/1,512 Product Details

Product Specifications

The PCF2129AT/1,512 is a high-accuracy Real-Time Clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) for exceptional timekeeping. Key specifications include:

• Time Accuracy: Enhanced accuracy provided by the TCXO.

• Power Supply Voltage: 1.8V to 5.5V, accommodating a wide range of power supplies.

• Temperature Range: Operating temperature range of -40°C to +85°C.

• Interface Type: Offers both I²C and SPI bus interfaces for flexible communication options.

• Oscillator: Integrated TCXO with a frequency of 32.768 kHz.

• Battery Backup: Includes a battery backup input for continuous timekeeping during power interruptions.

• Package Type: Available in a SO16 package for easy integration.

• Additional Features: Features include a programmable clock output, timer, and alarm functions to suit various application needs.

Product Introduction

The PCF2129AT/1,512 RTC chip is engineered for applications requiring precise timekeeping under varying environmental conditions. Its built-in TCXO ensures high accuracy over a wide temperature range, making it ideal for demanding applications. The device supports low-power operation and a broad voltage range, facilitating use in battery-operated and portable devices. With dual bus interfaces, the PCF2129AT/1,512 is versatile, allowing for easy integration into various system designs. Additional functionalities like programmable clock output and alarm capabilities make this chip a comprehensive timekeeping solution.

Application Scope

This RTC is suited for a diverse array of applications, notably in:

• Consumer Electronics: Including wearables, smart appliances, and high-end audio/visual equipment.

• Industrial and Automotive: Ideal for industrial monitoring systems, automotive telematics, and navigation devices requiring accurate timekeeping.

• Networking and Communications: For use in network hardware, such as routers, switches, and base stations where time-stamping is crucial.

• Healthcare Devices: In medical monitoring equipment and health management systems where precise timekeeping enhances functionality and reliability.

• Data Loggers and Metering: Perfect for applications requiring timestamped data collection, such as environmental monitoring or smart metering.

Frequently Asked Questions

Q: How does the TCXO enhance the PCF2129AT/1,512's accuracy?

A: The TCXO compensates for temperature variations that can affect the frequency of the crystal oscillator, ensuring high accuracy across the chip's operational temperature range.

Q: Can the PCF2129AT/1,512 be used in battery-powered applications?

A: Yes, its low-power consumption and wide voltage range make it well-suited for battery-powered devices, with battery backup ensuring continuous timekeeping even during power outages.

Q: What are the programming options for the alarm function?

A: The alarm can be programmed for a specific time and date, with the ability to set daily, weekly, or monthly alarms through the I²C or SPI interface, as detailed in the product datasheet.