DS1685SN-5

The DS1685SN-5 is a real-time clock (RTC) which incorporates a crystal oscillator and offers convenient access to the generated clock signal. It is the industry-standard device for monitoring and controlling many types of system events. This RTC device is typically used in a wide variety of consumer electronics, computers, and embedded systems to track time and date information. It can be configured to generate alarm signals and can also be used to synchronize data across multiple system components.

Overview

The DS1685SN-5 is manufactured by Maxim Integrated. It is a low power CMOS combination RTC and crystal oscillator which offers a high level of accuracy and reliability in an economical package. The device is capable of providing very accurate time and date information, and it has a wide operating voltage range of 2.50V to 5.5V. It is also capable of automatically adjusting for time zone changes and daylight saving time.

The DS1685SN-5 is a versatile device and is suitable for a wide variety of applications. It is highly configurable and can easily be set up to meet the specific requirements of each individual application. It is available in an 8-pin SOIC (small outline integrated circuit) package and is RoHS-compliant.

Features

• Real Time Clock (RTC) with crystal oscillator
• Very low power consumption
• Automatic time zone and daylight saving time adjustments
• Supports both 12- and 24-hour formats
• Accurate to ±2 ppm
• Wide range of operating voltages
• Available in 8-pin SOIC

Applications

The DS1685SN-5 is suitable for a wide range of applications, such as:

• Home and office automation
• Timing applications
• System monitoring
• Industrial control systems
• Automotive applications
• Smart appliances
• Computers and servers

Working Principle

The DS1685SN-5 device is based on silicon dioxide (SiO2) technology, which uses quartz crystal resonators to provide accurate timing information. The crystal is connected to the RTC through a tiny circuit board, and it is frequently recalibrated to ensure that the time and date information are consistently accurate. The quartz oscillator acts as a flywheel, maintaining accuracy even when the power is interrupted for short amounts of time.

The clock portion of the RTC is used to generate the time and date information, and the quartz oscillator is used to maintain the accuracy. It uses a 32.768 kHz signal to generate 1-second interrupts and to count the clock cycles necessary to track time and date. The embedded software on the device continuously monitors the state of each time and date register and updates it according to the current time and date.

The device also has a programmable alarm which can be configured to generate an interrupt at a specific time. This can be used to wake up a system or to trigger an event at a predetermined time. The device also has the capability to automatically adjust for the current time zone and daylight savings time.

Conclusion

The DS1685SN-5 is a highly configurable real-time clock which is suitable for a wide range of applications. It is based on SiO2 technology and uses a quartz crystal resonator to maintain accuracy even when the power is interrupted. The device can be set up to generate an interrupt at a specific time and to automatically adjust for the current time zone and daylight savings time.