The PCA2125TS/1 is a sophisticated real-time clock (RTC) and calendar optimized by NXP Semiconductors for low power consumption and with a wealth of features to support a wide range of time-tracking applications. This integrated circuit (IC) is designed to provide precise time and date information, featuring automatic leap year correction and a programmable clock output for peripheral devices.

Key Features

• Accuracy: The device maintains high accuracy with a built-in temperature-compensated crystal oscillator (TCXO) and a programmable offset register, ensuring timekeeping is reliable even under temperature variations.
• Power Management: With a primary focus on low power consumption, the PCA2125TS/1 includes a battery switch-over circuit, allowing for a backup power source to maintain timekeeping when main power is unavailable.
• Interface: An I²C-bus interface facilitates easy integration into existing systems, providing a simple two-wire connection for communication with microcontrollers and other digital devices.
• Memory: Integrated 240-bit static RAM (SRAM) offers scratchpad memory, which can be used for storage of small amounts of data that need to be preserved during power loss.
• Alarm Function: A programmable alarm and timer function allows for scheduling single or periodic interrupts, enabling wake-up signals for microcontrollers and other logic systems.

Applications

The PCA2125TS/1 is ideal for a variety of applications where accurate timekeeping is essential. It is commonly used in:

• Utility meters
• Telematics
• Handheld devices
• Industrial and automotive systems
• Data loggers

Technical Specifications

Operating within a voltage range of 1.8 to 5.5 V and temperature range from -40°C to +85°C, the PCA2125TS/1 is built for resilience and flexibility. The small footprint of the TSSOP8 package makes it suitable for space-constrained applications without compromising functionality.

For detailed technical specifications, please refer to the NXP product datasheet.