DS2417P+

Interface:	1-Wire® Serial
Base Part Number:	DS2417
Supplier Device Package:	6-TSOC
Package / Case:	6-LSOJ (0.148", 3.76mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	0.45µA @ 2.5V ~ 5.5V
Voltage - Supply, Battery:	--
Voltage - Supply:	2.5 V ~ 5.5 V
Series:	--
Date Format:	Binary
Time Format:	Binary
Memory Size:	--
Features:	Unique ID
Type:	Binary Counter
Part Status:	Active
Packaging:	Tube

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DS2417P+ Application Field and Working Principle

The DS2417P+ is a real-time clock (RTC) with built-in battery backup for superior accuracy, time-stamping and extended timekeeping. Its built-in high-accuracy crystal oscillator allows for extended timekeeping in battery-backed applications without frequency drift, and its compact form factor enables customers to use the device in space-constrained or complex applications. This Real-Time Clock device is suitable for a variety of applications requiring accurate timekeeping even in the absence of a system clock source. One example of an application utilizing the DS2417P+ is a Time-Division Multiplex (TDM) system where a separate RTC is needed to keep accurate time while other hardware is powered down.

The DS2417P+ utilizes a conventional crystal oscillator circuit to generate accurate clock pulses. The crystal oscillator is comprised of two active components, a capacitor and a crystal, which are connected to contacts on the device. When the crystal is vibrating at its correct frequency, it generates a pulse that is picked up by the two contacts. The two contacts are connected to the oscillator circuit, which is responsible for the clock pulse timing. From the oscillator circuit, the clock signals are sent to the RTC where they are used to update the time and calculate the time-stamping information.

The DS2417P+ also has a built-in temperature sensor that can be used to track temperature changes and further accuracy. Additionally, with its 1024 bytes of SRAM and 128 bytes of EEPROM, the device provides a wide range of memory resources for storing time-stamping information and other pertinent customer data. Additionally, the onboard 32kHz output pin is used to detect low power conditions or can be used as an alarm interaction indicating to the system that an alarm event has been detected.

The main feature of the DS2417P+ is its ability to accurately keep track of time and date information even when the main power is disconnected. This allows customers to preserve time information over extended periods of time with no frequency drift. In addition, customers can set various alarms that will cause a signal to be sent out when the system clock reaches the specified time and can also program events for automatic changeover or system monitoring purposes. When connected to a battery backup circuit, the DS2417P+ can also keep timekeeping accurate for several days in the event that main power is lost or interrupted.

In summary, the DS2417P+ is a real-time clock with a wide range of features that enable it to be used in numerous applications requiring accurate timekeeping. Its onboard crystal oscillator, temperature sensor, and extra memory enable it to keep accurate time over an extended period of time with no frequency drift. Additionally, customers can easily program the device to send out alarms when the system clock reaches the specified time, as well as program events for automatic changeover or system monitoring purposes.

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