STMicroelectronics M48T86PCI - Real-Time Clock (RTC) with Battery Backup

The M48T86PCI from STMicroelectronics is a 5.0V PC real-time clock (RTC) designed to provide a comprehensive timekeeping solution for computer and embedded systems. This integrated device includes a high-precision RTC, a crystal, a power-fail detect circuit, and a battery all encapsulated in a 24-pin DIP package, ensuring long-term reliability and ease of integration into a wide range of applications.

Key Features

• Integrated Power Supply: Comes with an embedded lithium battery that provides over 10 years of backup power, ensuring continuous timekeeping even when the main power is unavailable.
• Accurate Timekeeping: The device maintains seconds, minutes, hours, day, date, month, and year information with automatic leap year compensation valid up to 2099.
• Programmable Alarm: Features a programmable alarm and interrupt function that can be set to a specific time, providing a versatile trigger for system events.
• Power-Fail Detect: The power-fail detect circuitry offers an early warning of impending power loss, allowing systems to prepare for power-down sequences.
• Watchdog Timer: An integrated watchdog timer can be used to reset a system if it becomes unresponsive, enhancing system stability.
• Binary or BCD Time Representation: The RTC can represent time in binary or BCD format, offering flexibility for different system requirements.

Applications

The M48T86PCI is suitable for a variety of applications that require accurate timekeeping and system management, such as:

• Embedded systems
• Industrial control systems
• Network servers
• Telecommunication equipment
• Consumer electronics

Easy Integration

The device's 24-pin DIP (Dual In-line Package) allows for straightforward integration into system designs without the need for external components. This, combined with its low power consumption and robust feature set, makes the M48T86PCI a reliable and cost-effective choice for maintaining accurate time in electronic systems.