DS1558Y+TRL

Interface:	Parallel
Base Part Number:	DS1558
Supplier Device Package:	48-LQFP/48-TQFP (7x7)
Package / Case:	48-LQFP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	6mA @ 5V
Voltage - Supply, Battery:	2.5 V ~ 3.7 V
Voltage - Supply:	4.5 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (24 hr)
Memory Size:	--
Features:	Alarm, Leap Year, Watchdog Timer, Y2K
Type:	Clock/Calendar
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DS1558Y+TRL Application Field and Working PrincipleThe DS1558Y+TRL is a family of real-time clocks (RTCs) as well as general-purpose chips made by Dallas Semiconductor, which build upon the popular Dallas Semiconductor RTC range. The additions are many-fold, ranging from enhanced performance over prior RTCs to improved operation over extreme temperatures. It is thus a great choice for a variety of applications, including aviation and marine navigation systems, industrial automation, medical equipment, and smart metering systems.The family of DS1558Y+TRL devices is built around an advanced System on Chip design that integrates several components onto a single die. This core design, called the Timekeeping Core, features a highly accurate timekeeping primary oscillator, a programmable oscillator, and a state machine to ensure efficient operation of the system. This core also integrates RAM, program logic, and other peripherals that are tailored for clock and timing applications.The main use of the DS1558Y+TRL is in smart meters, which require an accurate and reliable RTC to perform functions such as peak power management and demand response. The integrated oscillator allows the device to maintain accurate timekeeping even in the presence of power disturbances and shifts in temperature, while the integrated programmable oscillator allows it to synchronize with external clocks easily. Furthermore, the chip can be customized to one’s specific application due to its flexible hardware and software design.The DS1558Y+TRL is also highly useful in aviation and marine navigation systems due to its accuracy and temperature performance. It can be used as an emergency backup to provide accurate timekeeping in case of a power failure, as well as to support precision navigation with its integrated high-precision timekeeping oscillator. Additionally, it can be used to customize the timekeeping functions for specialized navigational needs. The device is also resistant to extreme temperatures and shocks, making it suitable for many military applications.Besides its features for aviation, marines, and smart metering, the DS1558Y+TRL also finds applications in medical and industrial automation. Its flexibility and temperature performance make it suitable for medical applications, as well as for industrial applications such as process control and monitoring.In summary, the DS1558Y+TRL is a highly versatile real-time clock, which is suitable for many applications due to its accuracy, temperature performance, flexibility, and integrated system on chip design. It is thus a great choice for a variety of industries, including aviation and marine navigation, medical equipment, industrial automation, and smart metering.

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