STMicroelectronics

M48T12-70PC1

M48T12-70PC1 Description

The M48T12-70PC1 from STMicroelectronics is a high-performance Real-Time Clock (RTC) IC designed for precision timekeeping and calendar functions. Housed in a 24-pin DIP (Dual In-line Package), this parallel-interface RTC operates within a 4.5V to 5.5V supply range and is optimized for industrial and embedded systems requiring reliable time/date tracking. As part of the Timekeeper® series, it delivers robust performance with a 24-hour time format (HH:MM:SS) and supports leap year calculations, ensuring long-term accuracy. With an operating temperature range of 0°C to 70°C, it is suitable for moderate environmental conditions.

M48T12-70PC1 Features

• Parallel Interface: Enables straightforward integration with microcontrollers and legacy systems.
• Low Timekeeping Current: Consumes only 3mA max at 4.5V–5.5V, enhancing power efficiency.
• Leap Year Compensation: Automatically adjusts for leap years, reducing firmware complexity.
• Wide Voltage Range (4.5V–5.5V): Compatible with standard 5V logic systems.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.
• Unlimited MSL (Moisture Sensitivity Level 1): Ideal for extended storage and handling.
• Through-Hole Mounting: Simplifies prototyping and repair in industrial applications.

M48T12-70PC1 Applications

This RTC is ideal for systems demanding accurate time-stamping and scheduling, including:

• Industrial Automation: PLCs, data loggers, and event timers.
• Embedded Systems: Medical devices, POS terminals, and telecom equipment.
• Legacy Electronics: Upgrades for older systems requiring parallel interface support.
• Utility Meters: Electricity/gas meters with time-based billing.
  Its non-volatile memory ensures data retention during power loss, critical for fault-tolerant designs.

Conclusion of M48T12-70PC1

The M48T12-70PC1 stands out for its reliability, ease of integration, and low power consumption, making it a preferred choice for time-critical applications. Its parallel interface and leap year support offer distinct advantages over simpler serial RTCs, particularly in legacy or high-noise environments. For engineers seeking a robust, industry-proven solution with minimal firmware overhead, this IC delivers exceptional value.