DS1251YP-70

Series:	--
Packaging:	Tube
Part Status:	Discontinued at Digi-Key
Type:	Phantom Time Chip
Features:	Leap Year, NVSRAM
Memory Size:	512KB
Time Format:	HH:MM:SS:hh (12/24 hr)
Date Format:	YY-MM-DD-dd
Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Voltage - Supply, Battery:	3V
Current - Timekeeping (Max):	10mA @ 5V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	34-PowerCap™ Module
Supplier Device Package:	34-PowerCap Module
Base Part Number:	DS1251

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DS1251YP-70 Real Time Clocks are widely used in a range of applications as a highly accurate and reliable way to maintain accurate time and data. These Real Time Clocks are widely used in industrial, medical, automotive, and other applications where reliable time-keeping is essential.The DS1251YP-70 Real Time Clock (RTC) is a very low power integrated circuit, designed to maintain accurate time and date when powered from a medium (1.5V to 5.5V) power source. It is designed to operate from very low frequency timing sources, such as those that might be generated by a quartz oscillator. This allows for reliable operation in systems that are powered intermittently or for short periods of time.The combination of its low power operation, low power standby operation, and accuracy combine to make it an ideal choice for a wide range of applications, from metering and instrumentation, industrial and automotive systems. The DS1251YP-70 can also be used in medical, scientific, and engineering applications, such as oscilloscopes, ultrasonic equipment and medical scanners.The DS1251YP-70 features four separate banks of 32K bytes of non-volatile SRAM, a real-time clock and calendar, and a wide range of features that can be configured via I2C and SPI buses. The real-time clock (RTC) keeps track of time in seconds, minutes, hours, days, months, and years, while the calendar tracks the day of the week and leap years. The calendar can be set to operate in either 24-hour or 12-hour formats. The non-volatile SRAM stores user data that needs to be retained, even after power is removed.The DS1251YP-70 is designed to accurately track the current time and date, even when powered intermittently. This is achieved by using a low power oscillator, which runs at 32KHz and provides a timing source to the device. The clock and calendar accuracy is further enhanced by utilizing a special low power circuitry that can detect the shutdown times and prevent them from accumulating time errors.As the DS1251YP-70 is designed to operate from very low voltage sources it is suitable for a wide range of applications. The RTC and calendar of the device can be accessed through the I2C and SPI interfaces for reads and writes. Other features such as interrupts, RAM clocking, and power-down detection can be configured to suit application requirements.Power for the device can be provided through the I2C or SPI interfaces, or it can be powered from an external source. It is a low power device, so it will not drain large amounts of power from the system. It is also designed to operate in temperatures from -40°C to 85°C, making it suitable for a range of operating environments.The DS1251YP-70 Real Time Clock provides an efficient, accurate, and reliable way to maintain accurate time and data. This makes it an ideal choice for a range of applications such as metering, instrumentation, medical and industrial systems. The combination of its low power operation and low latency make it suitable for applications such as ultrasonic equipment and medical scanners, where fast response and accuracy are essential.

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