DS1100M-500

Delay Lines IC Overview

The DS1100M-500 is a high-performance, low-power real-time clock (RTC) and calendar device manufactured by Analog Devices Inc. It provides timekeeping functions including seconds, minutes, hours, day, date, month, and year with leap-year compensation valid through 2100. The device operates from a single supply voltage of 2.3V to 5.5V and features an I2C serial interface for communication. It includes two programmable square wave output pins and an interrupt pin. The component maintains accurate timekeeping using an external 32.768 kHz crystal oscillator connected to dedicated pins.

Delay Lines IC Feature Summary

• Integrated leap-year compensation logic ensures correct date tracking without software intervention.
• Dual power supply design allows seamless switching between main power and backup battery sources.
• Programmable alarm and square wave outputs provide flexible timing signals for system control.

Delay Lines IC Applications

• Data logging systems requiring precise timestamping
• Portable electronic devices needing low-power timekeeping
• Industrial equipment with I2C-based monitoring requirements

Delay Lines IC Procurement Notes

Verify the specific suffix 'M' indicates military-grade temperature range and quality assurance standards when sourcing. Confirm the '-500' designation aligns with the required operating frequency or package variant if applicable. Ensure the supplier provides traceability documentation consistent with defense or aerospace procurement requirements. Check for RoHS compliance status if environmental regulations apply to the end product.

Delay Lines IC Selection Notes

Select this component when a robust RTC with hardware leap-year correction is required in space-constrained designs. Consider the I2C interface compatibility with the host microcontroller's available buses. Evaluate the power consumption characteristics against the system's battery life expectations. Verify that the available GPIO pins on the target board can accommodate the interrupt and square wave outputs.

Delay Lines IC Part Context

This part belongs to the DS1100 series of real-time clocks, which are designed for applications demanding high accuracy and low power consumption. The series typically shares core functionality but may vary in package type, temperature range, or additional features like EEPROM integration. The 'M' suffix generally denotes a military-grade version, distinguishing it from commercial variants in terms of reliability testing and environmental specifications.

Delay Lines IC Replacement Considerations

Direct replacements should be sought within the DS1300 or DS3231 families if pin compatibility is critical. Verify that substitute parts support the same I2C addressing scheme and voltage levels. Cross-reference the package dimensions to ensure mechanical fit within the existing PCB layout. Confirm that the alternative device offers comparable accuracy and backup battery switching behavior.