PCA8565TS/1,118

The PCA8565TS/1,118 is a high-precision, ultra-low power Real-Time Clock (RTC) IC from NXP USA Inc., designed for accurate timekeeping in battery-powered and embedded systems. This advanced clock/calendar IC combines exceptional power efficiency with comprehensive timing features, making it the ideal choice for industrial automation, IoT devices, data loggers, medical equipment, and portable electronics.

Featuring an I2C 2-wire serial interface for seamless integration, the PCA8565TS operates across a wide voltage range of 1.8V to 5.5V, ensuring compatibility with various microcontroller platforms. With an ultra-low timekeeping current consumption of just 1.2µA to 5µA at 2V to 5V, this RTC IC maximizes battery life in power-sensitive applications, enabling years of continuous operation on a single coin cell battery.

Advanced Timing Features

The PCA8565TS provides complete clock and calendar functionality with 24-hour time format (HH:MM:SS) and full date tracking (YY-MM-DD-dd). Built-in features include programmable alarm functionality for wake-up events, automatic leap year compensation for accurate long-term timekeeping, square wave output for system clocking, and an integrated watchdog timer for enhanced system reliability and fault detection.

Industrial-Grade Reliability

Engineered for demanding environments, this RTC IC operates reliably across an extended temperature range of -40°C to 125°C, making it suitable for automotive, industrial control, outdoor monitoring, and harsh environment applications. The compact 8-TSSOP surface mount package (3.00mm width) enables space-efficient PCB designs while maintaining excellent thermal performance.

Key Specifications & Benefits

• Ultra-Low Power Consumption: 1.2µA to 5µA timekeeping current extends battery life significantly
• Wide Operating Voltage: 1.8V to 5.5V supports diverse system architectures
• I2C Interface: Simple 2-wire serial communication reduces pin count and simplifies design
• Programmable Alarm: Enables scheduled wake-up events and power management
• Automatic Leap Year: Maintains accurate calendar through 2099
• Square Wave Output: Provides system clock or periodic interrupt signals
• Watchdog Timer: Enhances system reliability with automatic reset capability
• Extended Temperature Range: -40°C to 125°C for industrial and automotive applications
• Compact Package: 8-TSSOP surface mount for space-constrained designs

Ideal Applications

The PCA8565TS/1,118 excels in battery-powered IoT devices, industrial data acquisition systems, smart meters and utility monitoring, medical and healthcare devices, automotive electronics, portable instrumentation, security and access control systems, and consumer electronics requiring accurate timekeeping.

Related Products & Resources

Explore our complete Real-Time Clock ICs (RTCs) collection for more precision timing solutions including battery-backed RTCs, SPI interface models, and ultra-low power variants for your embedded system designs.

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• PCA8565TS/1,118.pdf