DS14285S+

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Clock/Calendar
Features:	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Memory Size:	114B
Time Format:	HH:MM:SS (12/24 hr)
Date Format:	YY-MM-DD-dd
Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Voltage - Supply, Battery:	2.5 V ~ 3.6 V
Current - Timekeeping (Max):	0.5µA @ 4.5V ~ 5.5V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	24-SOIC
Base Part Number:	DS14285

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Real-time clocks (RTCs) provide a means to keep track of the day and time, and are commonly found in embedded systems and computers. The DS14285S+ is a real-time clock from Maxim Integrated that is designed to be used in space-critical applications such as monitoring systems, industrial and medical instrumentation, and automobiles.This RTC features a low power consumption of 80nA, which helps in prolonging battery life. This RTC does not require an external crystal or clock source, and it operates at a frequency of 1Hz. Additionally, the device provides the input/output (I/O) port capability to enable communication with the host system.The DS14285S+ integrates a 4-bit paging system, which allows its registers to be written to, so that year, month, day, hour, minute and second can all be set. This clock is highly accurate and allows for high-resolution timing, with millisecond accuracy.This RTC also features several protection features to increase reliability, such as battery-backed registers, an automatic switchover from a low-battery stop mode to an external supply, software reset, and an alarm alarm.The DS14285S+ is designed to be used in a variety of applications. In industrial and medical instrumentation, the RTC can be used to keep track of time and temperature, as well as act as a fail-safe back-up in case of power outages. The device can also be used in automobiles as a way to monitor engine performance, or in monitoring systems to help detect power outages and prevent data loss.In terms of its working principle, the DS14285S+ works by tracking the phase of a 32KHz crystal oscillator with an internal clock. This clock then counts the seconds, minutes and hours with the help of a programmable interval timer and outputs the contents of its registers to the outside world.The DS14285S+ is an accurate and reliable real-time clock with a low power consumption, making it suitable for use in space-critical applications. With its paging system and protection features, this device can be used in a variety of applications to help monitor and maintain time and temperature, as well as serve as a failsafe back-up.

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