DS1251W-120+

Interface:	Parallel
Base Part Number:	DS1251
Supplier Device Package:	32-EDIP
Package / Case:	32-DIP Module (0.600", 15.24mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C
Current - Timekeeping (Max):	7mA @ 3.3V
Voltage - Supply, Battery:	--
Voltage - Supply:	2.97 V ~ 3.63 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS:hh (12/24 hr)
Memory Size:	512KB
Features:	Leap Year, NVSRAM
Type:	Phantom Time Chip
Part Status:	Active
Packaging:	Tube

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DS1251W-120+ is an Electronic Real-Time Clock (RTC) IC used to provide accurate time keeping functions for today\'s advanced computer systems and embedded applications. The DS1251W-120+ is capable of providing time-of-day information with a resolution of one second, providing a leap year supported calendar that is programmable from 2100 to 9999 and the ability to drive crystal oscillators to achieve full time accuracy. The DS1251W-120+ is designed to run from a single power source, typically 3.3 volts, but can also use 5.0 volts for compatibility with many systems. The DS1251W-120+ is used to accurately measure and record events and activities in critical embedded applications such as computer networking, security systems, industrial automation, and telecommunications. It has low power consumption of only 5 mA and features a wide range of Vcc and temperature operating conditions. The device has an SPI interface and can be combined with a variety of waveform generators to generate time-domain waveforms on the output port.The three main components of the DS1251W-120+ are the real-time clock, the oscillator, and the calendar. The real-time clock is the heart of the system and is responsible for storing the current time and date information. The oscillator is responsible for the accuracy of the clock and is typically tuned to a standard frequency of 32.768 kHz. The calendar contains the leap year information and can be programmed to accurately report events up to 2100 and beyond.The DS1251W-120+ uses a variety of specialized features to ensure accurate time keeping. It features an alarm that can generate interrupts, a watchdog timer to detect system errors, clock initialization, and an auto-off feature. It also includes an onboard temperature sensor and can be used to monitor environmental conditions.The DS1251W-120+ also boasts a variety of low-power operating modes. The standby mode allows the device to power down the parts of the circuit it does not need to reduce energy consumption and increase battery life. The timekeeping mode provides accurate timekeeping capabilities with very low power consumption. Low power delay mode allows the device to stretch out the clock cycles to save power and increase accuracy. The DS1251W-120+ is widely used in many applications that require accurate timekeeping. It is used in industrial automation and robotics, as well as in telecommunications and satellite systems. It is also used in consumer electronics and computer systems, where it is used to provide a reliable time source to automatically synchronize systems. The DS1251W-120+ is an impressive device offering superior clock accuracy, low power consumption, and a variety of operating modes. Its use in a variety of applications makes it an invaluable tool for today’s consumer and industrial markets.

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