RTC-4701NB:B3 ROHS

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RTC-4701NB:B3 ROHS Application Field and Working Principle

The RTC-4701NB:B3 is a compact real-time clock (RTC) module from Epson that provides timekeeping accuracy with extended temperature performance. It is designed to be mounted on a circuit board and is designed to operate under the RoHS (Restriction of Hazardous Substances) standard. It is a highly reliable clock that operates at -40°C to 105°C, making it ideal for operation in a wide range of applications and environments.

The module is capable of low-power operation and has a wide power supply voltage range of 2.7V to 5.5V. It is also designed to operate without backup batteries, making it suitable for both standalone and network applications. It is equipped with a temperature sensor and is compliant with the NIST (National Institute of Standards and Technology) interface, making it suitable for network applications.

Application Areas

The RTC-4701NB:B3’s wide temperature range and low power operation make it ideal for applications in automotive, industrial, medical, and aerospace solutions. It is capable of timekeeping accuracy of up to 1ppm in temperature and is also designed to offer accurate timekeeping in extreme temperature conditions. It is also widely used in applications such as smart meters, thermostats, and robotics.

Usage Scenarios

In automotive applications, the RTC-4701NB:B3 can be used to detect and control vehicular systems and instrumentation. It is also suitable for applications such as navigation systems and driver assistance systems, as the clock can remain accurate for a wide range of temperatures. In industrial applications, the clock can be used to control machinery, monitor sensor input, and control machinery operations. It is also ideal for medical applications such as patient monitoring, vital sign monitoring, and nurses’ call systems. In aerospace applications, the clock can be used to monitor avionics systems, navigation systems, and communication systems.

Working Principle

The RTC-4701NB:B3 uses a combination of quartz crystal oscillator and internal RAM to keep track of time. The quartz crystal oscillator is the main source of timing accuracy and the RAM is used to store the clock data. The clock operates on a 32.768kHz crystal, which is the most accurate for general timekeeping purposes. The frequency is divided to give a 1 second output. The time is kept accurate even during time zone changes, when some time needs to be quickly added or deducted from the clock.

The quartz crystal oscillator is also used to drive a voltage-controlled oscillator (VCO) circuit, which helps the clock to adjust to changes in external power supply voltage. The quartz crystal also compensates for temperature changes, as different temperature affects the oscillator’s frequency. The quartz crystal oscillator output is constantly monitored, and the clock can make sudden and instant corrections to its timekeeping if needed.

The clock is designed to provide time signals on a daily basis, and it can be programmed to provide interrupt signals at specified time points. It is also designed to provide alarm signals when certain time points are reached. These time signals and alarms can be used to control external operations, such as powering off and on or changing frequency.

Conclusion

The RTC-4701NB:B3 is a compact real-time clock module that is designed to operate under RoHS (Restriction of Hazardous Substances) standards. It has a wide temperature range and is capable of low power operation, making it suitable for a wide range of applications. It is equipped with a quartz crystal oscillator and internal RAM, which pair to keep track of time and temperature changes. The clock can also provide interrupts and alarm signals, and is suitable for automotive, industrial, medical, and aerospace applications.

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