DS1642-100+

Interface:	Parallel
Base Part Number:	DS1642
Supplier Device Package:	24-EDIP
Package / Case:	24-DIP Module (0.600", 15.24mm)
Mounting Type:	Through Hole
Operating Temperature:	0°C ~ 70°C
Current - Timekeeping (Max):	3mA @ 5V
Voltage - Supply, Battery:	--
Voltage - Supply:	4.5 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (24 hr)
Memory Size:	2KB
Features:	Leap Year, NVSRAM
Type:	Clock/Calendar
Part Status:	Obsolete
Packaging:	Tube

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DS1642-100+ application field and working principle

The DS1642-100+ is a Real Time Clock IC that is among the top-of-the-line devices in terms of accuracy and features. It is compact and low-cost, yet highly reliable. The primary application areas of this device are in applications such as embedded systems, computer systems and networking systems.The DS1642-100+ utilizes an extremely accurate on-chip oscillator and crystal to provide timekeeping accuracy of ±2 to ±3 ppm over temperature. It has an accuracy rating of 1 second in a million years, making it more accurate than many dedicated crystal oscillators. The DS1642-100+ also has built-in temperature-compensated clock calibration capability and outputs to allow interfacing with various systems.The functions and features of the DS1642-100+ also include an event counter, periodic interrupts, and a host of user-defined timekeeping options.The event counter can be used to count the number of events that a system generates. This feature is useful for monitoring activities such as the length of time a process takes, the amount of time a machine has been running, and the number of engine revolutions.The periodic interrupt feature of the DS1642-100+ can be used to generate periodic interrupts. The frequency and duration of the interrupt can be set by the system to ensure regular intervals between events.The user-defined timekeeping options allow the user to define how often events occur, and when they should occur. This allows for easy customization of the timing and frequency of events, making the system more efficient and accurate.The DS1642-100+ is a very useful device for a wide range of applications. It is designed to provide accurate and reliable timing and is capable of delivering extremely accurate timing accuracy.

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