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The Maxim Integrated DS1921G-F5 is a digital thermometer with nonvolatile memory specifically designed for applications that require temperature monitoring over an extended period. This chip features a temperature sensor, real-time clock, nonvolatile temperature data storage, and programmable temperature alarms. Functions: 1. Temperature Monitoring: Measure and monitor temperature. 2. Nonvolatile Memory: Store temperature data even when powered off. 3. Real-Time Clock: Provides accurate time stamping of temperature data. 4. Programmable Alarms: Alert users when temperature thresholds are exceeded. Applications: 1. Cold Chain Monitoring: Ensuring temperature-sensitive goods are stored and transported within specified temperature ranges. 2. HVAC Systems: Monitoring and controlling temperatures in heating, ventilation, and air conditioning systems. 3. Medical Devices: Monitoring temperature in medical equipment and storage facilities. 4. Environmental Monitoring: Tracking temperature changes in industrial and environmental settings. Alternative Components: 1. MAX31850: High-accuracy one-wire digital thermometer with nonvolatile memory. 2. DS18B20: Programmable resolution 1-Wire digital thermometer. Embedded Modules: The DS1921G-F5 itself is an embedded module that integrates the temperature sensor, real-time clock, nonvolatile memory, and alarm functions in a single package. It can be easily integrated into various systems for temperature monitoring applications. Related Q&A: 1. Q: Can the DS1921G-F5 be used for remote temperature monitoring? - A: Yes, it can be integrated with wireless technology for remote monitoring applications. 2. Q: How accurate is the temperature sensor in the DS1921G-F5? - A: The sensor has a typical accuracy of ±0.5°C. 3. Q: Can the programmable alarms trigger external devices based on temperature readings? - A: Yes, the alarms can be used to trigger external systems based on temperature thresholds. 4. Q: Is the nonvolatile memory capacity of the DS1921G-F5 expandable? - A: No, the memory capacity is fixed within the chip. 5. Q: What is the power consumption of the DS1921G-F5 during operation? - A: The chip has low power consumption to extend battery life in portable applications.