The PCF2129T/2,518 is a high-accuracy, ultra-low power Real-Time Clock (RTC) module manufactured by NXP Semiconductors. This precision RTC offers a wide range of features suitable for a variety of time-tracking applications in embedded systems.

Key Features

• Accuracy: Equipped with an integrated Temperature-Compensated Crystal Oscillator (TCXO) and a 32.768 kHz quartz crystal, the PCF2129T/2,518 offers exceptional time accuracy, ensuring minimal time drift over a wide temperature range.
• Power Management: With its ultra-low power consumption, this RTC is optimized for battery-powered applications. It includes a battery switch-over circuit, ensuring continuous timekeeping even during power failures.
• Interface: The device supports both I²C-bus and Serial Peripheral Interface (SPI) for communication with microcontrollers, providing flexibility in system design.
• Programmable Clock Output: The RTC features a programmable clock output for peripheral devices, which can be set to a predefined frequency.
• Timestamp Function: An integrated timestamp function logs the time of external events, which is crucial for data logging and diagnostic purposes.
• Alarm Function: It includes an alarm function that can be programmed to trigger on a minute, hour, day, or week basis, making it ideal for scheduling tasks.

Applications

The PCF2129T/2,518 is well-suited for a diverse array of applications, including:

• Industrial and consumer electronics
• Utility meters
• Wearable devices
• Healthcare monitoring systems
• Automotive electronics

Technical Specifications

The device is available in a small TSSOP16 package, which is ideal for space-constrained applications. It operates over the industrial temperature range of -40°C to +85°C, ensuring reliable performance across various environments.

For detailed technical specifications, datasheets, and support resources, visit the official NXP Semiconductors product page or consult with an NXP authorized distributor.