DS1629S-C05+

Thermal Management Overview

The DS1629S-C05+ is a 2-wire digital thermometer and real-time clock (RTC) in an 8-pin SO package. It integrates a factory-calibrated temperature sensor with ±2.0°C typical accuracy over a -55°C to +125°C range, providing 9-bit resolution expandable via slope registers. The RTC maintains seconds through the year 2100 with leap-year compensation. It features user-definable thermal and time alarms on an open-drain output, 32 bytes of SRAM for data storage, and operates on a 2.2V to 5.5V supply.

Thermal Management Feature Summary

• Integrates a direct-to-digital temperature sensor and a real-time clock/calendar with leap-year compensation through 2100.
• Provides user-definable thermostatic and time alarm settings with a dedicated open-drain alarm output.
• Includes 32 bytes of SRAM for general system data or time/temperature logging.
• Communicates via a 2-wire serial interface requiring minimal external components.

Thermal Management Applications

• Personal computers and PDAs
• Cellular telephones
• Office equipment
• Thermal data loggers

Thermal Management Procurement Notes

Verify the specific C05 suffix against official Analog Devices documentation to confirm its exact meaning, as standard datasheets primarily list S+ and S+T&R variants. Ensure the component meets RoHS compliance requirements if applicable to your design. Confirm availability status directly with authorized distributors, as lead times may vary for this specific marking configuration.

Thermal Management Selection Notes

Select this component when a combined temperature monitoring and timekeeping solution is required in a compact 8-pin form factor. It is suitable for battery-powered applications due to its wide voltage range and low power consumption. Consider the 2-wire interface compatibility with your microcontroller before implementation.

Thermal Management Part Context

The DS1629 belongs to Maxim Integrated's family of 2-wire digital thermometers and real-time clocks. This series combines precise temperature measurement capabilities with chronograph functions in a single integrated circuit. The device simplifies system design by eliminating the need for separate temperature sensors and RTC chips.

Thermal Management Replacement Considerations

DS1629S+

Thermal Management FAQ

How is higher than 9-bit temperature resolution achieved?

Higher resolution is obtained by reading the COUNT_REMAIN and COUNT_PER_C values using specific commands and calculating the temperature using the provided equation.

What happens to the oscillator at power-up?

By default, the oscillator is enabled at power-up, allowing the OSC pin to provide a clock signal to a microcontroller immediately upon startup.