DS1302ZN+

Interface:	3-Wire Serial
Base Part Number:	DS1302
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	0.3µA ~ 1µA @ 2V ~ 5V
Voltage - Supply, Battery:	2 V ~ 5.5 V
Voltage - Supply:	2 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (12/24 hr)
Memory Size:	31B
Features:	Leap Year, NVSRAM, Trickle-Charger
Type:	Clock/Calendar
Part Status:	Active
Packaging:	Tube

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DS1302ZN+ Real Time Clock

The DS1302ZN+ Real Time Clock (RTC) is a great solution for keeping accurate time in embedded and automotive applications. Built on the venerable, industry standard DS1302 RTC, it brings both cost savings and advanced features that make this chip a standout choice for automotive and industrial applications. The DS1302ZN+ provides users with a highly accurate and cost effective time keeping solution that fits in the smallest of systems and packages.

Application Field

The DS1302ZN+ RTC is highly suitable for embedded and automotive applications and it can be used in numerous applications such as clock synchronization and remote sensing. This RTC has the ability to hold long-term accurate time even when subject to power outages or reset events. It\'s advanced design makes it perfect for application in car navigation and infotainment systems, in-dash monitors as well as industrial applications.

Working Principle

The working principle of the DS1302ZN+ Real Time Clock is based on the capability of an oscillating quartz crystal to detect and respond to electrical impulses. The frequency of oscillations is determined by the resonance of the crystal and this frequency is used to accurately measure time intervals. Inside of the DS1302ZN+ RTC is a crystal, integrated circuit, battery and other components that work together to accurately measure time, both short- and long-term.The DS1302ZN+ Real Time Clock contains two synchronous counters, one which measures the seconds and minutes and another which counts the days, month and years. The seconds and minutes counter will count up to 59 seconds and 59 minutes. The day, month, and year counter will count up to 28-31 days, 11-12 months, and 19-20 years respectively. As the counters count up, they trigger a special signal which can be used to display the elapsed time on an external device such as a display, LED, or LCD.

Memory Function

In addition to its timekeeping capabilities, the DS1302ZN+ also has some memory functions which allow information to be stored for long-term use. The DS1302ZN+ is capable of storing up to 31 bytes of information, and the memory can be used for anything from storing notes or messages to keeping track of calendar events or milestones.

Power Consumption

The DS1302ZN+ is a very low-power RTC, as low as 7µA in typical standby mode. Its power consumption is further reduced when the Osc Stop Mode is enabled, reducing the power used by up to five times. The battery life of the DS1302ZN+ can be extended to up to 20 years in normal operating conditions.

Conclusion

The DS1302ZN+ Real Time Clock is a great choice for automotive and industrial applications, providing accurate timekeeping and memory functions in an efficient, low-power package. It is an easy to use, versatile solution for applications looking for a reliable way to keep track of time.

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