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Part Status:	Obsolete
Packaging:	Tube

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DS1302ZN is a real time clock (RTC) I²C (Inter-Integrated Circuit) bus-compatible module that employs a battery-backed liquid crystal display (LCD), there is detailed information such as date, time and day. This device provides components such as a clock/calendar function, time-of-day alarm, power-failure signaling and programmable watchdog time-out. The DS1302ZN can be used to accurately track time, even when there is power failure. The DS1302ZN is a low-power CMOS serial real-time clock (RTC) which has been designed to operate on a wide range of power supplies. It features both an external battery-backup power supply and a slave interface to power external devices from an I²C bus-compatible master device. In addition, it also has a serial addressable RAM, programmable nonvolatile memory, and a programmable interrupt timer. The design allows for flexible connection to either a 3.3V or 5V supply, as well as the ability to communicate with standard I²C bus-compatible masters. The DS1302ZN is a great choice for applications that require accurate time tracking, such as digital voice recorders, PDAs, and industrial automation systems. By incorporating an integrated clock/calendar and alarm functionality, the DS1302ZN makes a great choice for these types of applications. Additionally, the device\'s low power consumption, small size, and high accuracy make it suitable for use in battery-powered applications. The DS1302ZN is designed around a dedicated clock/calendar function. This function uses a built-in crystal oscillator to generate an accurate, 24-hour reference time. The clock calendar is set up to update the time and date data once every second. The clock/calendar can also be set to generate a periodic interrupt so it can be used to trigger tasks within the system on a periodic basis.The device\'s programmable nonvolatile memory (NVM) can be used to store critical system data and to retrieve it at power-up or upon command from the master. The NVM can also be used to store alarm and time-out data, enabling the device to generate system-specific events, such as power-fail or tamper detection. The DS1302ZN also features an integrated programmable interrupt timer which can be used to generate precise timing events. This timer can be set to issue periodic interrupts at chosen intervals, and can be configured to provide an interrupt pulse width proportional to the time interval programmed. The device also features an I²C bus-compatible slave interface which supports standard I²C commands and can be used to read and write data to the device\'s RAM. The DS1302ZN is a great choice for applications that require precise time tracking, as well as for applications where reliable power-fail protection is required. Its small size and low power consumption make it a great choice for battery-powered applications, while its high accuracy ensures time will be tracked accurately even in the event of a power failure. With its integrated alarm, NVM, and programmable interrupt timer, the device is a great choice for applications such as digital voice recorders, PDAs, and industrial automation systems.

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