DS17285SN-3

Interface:	Parallel
Base Part Number:	DS17285
Supplier Device Package:	24-SOIC
Package / Case:	24-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	2mA @ 2.7V ~ 3.7V
Voltage - Supply, Battery:	2.5 V ~ 3.7 V
Voltage - Supply:	2.7 V ~ 3.7 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (12/24 hr)
Memory Size:	2KB
Features:	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Type:	Clock/Calendar
Part Status:	Discontinued at Digi-Key
Packaging:	Tube

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DS17285SN-3 Application Field and Working PrincipleThe DS17285SN-3 is a real time clock (RTC) chip manufactured by Dallas Semiconductor (now a division of Maxim Integrated Products). It is used in a variety of applications such as embedded systems, industrial automation, automotive electronics and analog/mixed signal products. The chip is a low power CMOS device that works with a 3-volt battery supply and can be used in a wide variety of applications.The DS17285SN-3 is designed to replace traditional quartz oscillators and keep accurate time over a range of temperatures and power supply voltages. The chip features two digital counters, two analog-to-digital converters (ADC), an oscillator and an on-chip crystal oscillator. The two counters are used for time-based functions, such as counting days and hours, or providing periodic interrupts. The on-chip oscillator runs at 32.768kHz and is used for accuracy, as well as for frequency control.The two digital counters are used for measuring elapsed time, such as elapsed hours and remaining days. Each counter operates independently and has a separate counter output, providing reliable timekeeping. The DS17285SN-3 also includes an on-board watchdog timer, which is used to detect and reset errors. The watchdog timer can detect if the clock stops counting, or if an error occurs, and can reset the system if necessary.The on-chip ADC is used to measure external voltages, such as battery voltage, and then calculate the remaining battery capacity. The ADC also allows for measuring and logging temperature, humidity and other environmental factors in a range of different applications.The DS17285SN-3 is designed to work with a 3-volt battery supply. The chip is able to keep accurate time over a wide range of temperatures and power supply voltages.The main application field for the DS17285SN-3 is in embedded systems, industrial automation and automotive electronics. The chip is used in these applications to produce accurate, real time information. The device can be used for a variety of purposes, such as logging data, measuring voltage and temperature, and tracking time and date of events.In summary, the DS17285SN-3 is a low power, high performance, real time clock chip manufactured by Dallas Semiconductor (now a division of Maxim Integrated Products). The chip is designed to replace traditional quartz oscillators and keep accurate time over a range of temperatures and power supply voltages. The device is used in a variety of applications such as embedded systems, industrial automation and automotive electronics and is able to measure and log temperature, humidity and other environmental factors. The chip is especially useful in producing accurate, real time information.

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