DS1244W-120IND+

Interface:	Parallel
Base Part Number:	DS1244
Supplier Device Package:	28-EDIP
Package / Case:	28-DIP Module (0.600", 15.24mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°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:	32KB
Features:	Leap Year, NVSRAM
Type:	Phantom Time Chip
Part Status:	Active
Packaging:	Tube

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DS1244W-120IND+ Application Field and Working Principle

The DS1244W-120IND+ is a high precision clock and timing circuit designed for industrial applications. It is a real-time clock, also known as an RTC, in the sense that it stores date and time information and is designed to always provide accurate information, even in the case of power failures or outages. In clock/timing applications, it is the go-to circuit for a wide variety of uses, including high-precision timing accuracy, low cost and low power consumption.

Overview of DS1244W-120IND+ Features

The DS1244W-120IND+ is an industrial-strength, high-precision clock and timing circuit, able to achieve accuracy of one second in a minute, even when powered by low-cost 3.3V CMOS batteries. It is a 32-bit modular design, allowing for a range of frequency and timing applications. Relying on a built-in quartz crystal oscillator, the circuit is designed for high accuracy when compared to other RTCs available on the market.Its robust feature set also includes features like voltage regulation, precision temperature compensation, and differential clock inputs. The design offers up to twelve alarm and event registers along with a 120-bit wide RAM. The circuit is extremely low power, consuming less than 100µA in a low power mode, and only 180µA in full operation mode.

Applications of DS1244W-120IND+

DS1244W-120IND+ is an ideal choice for industrial automation and control, as well as telecom, medical, and energy sector applications. The circuit can be used to provide precise time and event information, including alarms and timers in various industrial settings, such as manufacturing control systems. It can also be used in other precision timing applications, such as synchronizing the clocks of two separate networks. Due to its extremely low power consumption, the DS1244W-120IND+ is well-suited for applications in continuous portable or battery-powered device operation, such as in medical monitoring systems, hand-held terminals, alarm or security systems, and others. The integrated high speed data bus allows for fast data transfers, making the circuit suitable for real-time data collection and analysis tasks, such as in medical test/analysis systems and in industrial process control applications.

Working Principle of DS1244W-120IND+

The DS1244W-120IND+ is based around a four-stage oscillator design whose accuracy is derived from a quartz crystal. The oscillator is finely tuned to achieve the highest precision timekeeping, and is further improved by adjustable temperature compensation that can help achieve accuracy down to one second in a minute. The circuit also includes transition detection, which allows the system to detect when the crystal oscillator\'s frequency transits between two frequency ranges. This feature helps to improve the accuracy of the circuit in the presence of power supply variations, as it can pick up any signals that are out of range and correct them accordingly. The circuit also provides a multitude of timing, alarms and event registers, as well as a 120-bit wide RAM for data storage purposes, allowing the circuit to be used for a wide variety of timing and data collection tasks.

Conclusion

The DS1244W-120IND+ is a high-precision clock and timing circuit designed for industrial applications. It is based on a finely tuned quartz crystal oscillator and features adjustable temperature compensation, transition detection, as well as a wide range of alarm and event registers and a 120-bit RAM. It is extremely low power, allowing it to be used in continuous, portable and battery-powered devices. The circuit is ideal for applications in industrial automation, telecom, medical and energy sectors, and can be used for time synchronization, alarms and timers, real-time data collection and analysis, and more.

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