STMicroelectronics

M48T18-150PC1

M48T18-150PC1 Description

The M48T18-150PC1 from STMicroelectronics is a high-performance Real-Time Clock (RTC) IC designed for precise timekeeping and calendar functions in embedded systems. Housed in a 28-pin DIP package, this parallel-interface RTC operates within a 4.5V to 5.5V supply range and delivers reliable performance across a 0°C to 70°C temperature range. As part of the Timekeeper® series, it integrates a clock/calendar with 24-hour time format (HH:MM:SS) and supports leap year calculations, ensuring long-term accuracy. With a maximum timekeeping current of 3mA, it is optimized for low-power applications while maintaining robust functionality.

M48T18-150PC1 Features

• Parallel Interface: Enables straightforward integration with microcontrollers and legacy systems.
• Watchdog Timer: Enhances system reliability by monitoring and resetting the host processor during faults.
• Leap Year Compensation: Automatically adjusts for leap years, reducing firmware complexity.
• RoHS3 Compliant & REACH Unaffected: Meets stringent environmental and safety standards.
• MSL 1 (Unlimited): Suitable for extended storage and handling without moisture sensitivity concerns.
• Through-Hole Mounting: Simplifies prototyping and industrial applications requiring robust mechanical connections.

M48T18-150PC1 Applications

This RTC is ideal for systems demanding accurate timekeeping with minimal host intervention, such as:

• Industrial Automation: Programmable logic controllers (PLCs) and process timers.
• Medical Equipment: Patient monitoring systems requiring timestamp accuracy.
• Data Loggers: Environmental sensors and event recorders.
• Legacy Systems: Upgrades for older designs needing reliable parallel-interface RTCs.
• Telecom Infrastructure: Network synchronization and backup power management.

Conclusion of M48T18-150PC1

The M48T18-150PC1 stands out for its robust design, low power consumption, and parallel interface, making it a versatile choice for applications where precision and reliability are critical. Its integrated watchdog timer and leap year support reduce external component count and firmware overhead, while through-hole packaging ensures durability in harsh environments. For engineers seeking a proven, industry-standard RTC, this model delivers a balanced combination of performance and ease of integration.