DS1558Y+ Overview
There is an embedded version of real time clocks in the package 48-LQFP.This package has a package type of Tray.Electrical RTCs such as this have a 4.5V~5.5V supply.In this case, we are dealing with an electrical real time clock that has a type of Clock/Calendar.It should be noted that the real time clock (RTC) is mounted in the way of Surface Mount.Electronic time clocks are recommended to operate at a temperature of -40°C~85°C.If Alarm, Leap Year, Watchdog Timer, Y2K is ensured when operating, then the operation will be successful.There are 48 terminations for transmission lines, which means that the RTC module that terminates the line matches its characteristic impedance.This RTC real time clock has a voltage supply of 5V which is provided to it.A total of 48 pins are attached to this RTCs.There are a family named DS1558 that consarets of the RTCs .In this electrical digital time clock, the supply voltage is 2.5V~3.7V.Ensure that the output frequency does not exceed 0.032MHz.In this case, the RTC module is mounted in the way of Surface Mount.As a power supply for the real time clock, a value of 5V is used.A total of 48 pins are equipped with the real time clock.RTC time is essential that the supply voltage remain at 5V for maximum efficiency.
DS1558Y+ Features
48-LQFP package
48 terminations
48 pin count
5V power supplies
Be maintained at 5V for high efficiency.

DS1558Y+ Applications
There are a lot of Maxim Integrated
DS1558Y+ Real Time Clocks applications.

Printers
Copy machines
Mobile equipment
Battery powered devices
Printers and copiers
Electronic metering
Digital cameras
White goods
Elapsed time counter
Network powered devices

Factory Lead Time	6 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	48-LQFP
Number of Pins	48
Operating Temperature	-40°C~85°C
Packaging	Tray
Published	2009
JESD-609 Code	e3
Feature	Alarm, Leap Year, Watchdog Timer, Y2K
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	48
ECCN Code	EAR99
Type	Clock/Calendar
Terminal Finish	Matte Tin (Sn)
HTS Code	8473.30.11.80
Voltage - Supply	4.5V~5.5V
Terminal Position	QUAD
Peak Reflow Temperature (Cel)	260
Supply Voltage	5V
Terminal Pitch	0.5mm
Base Part Number	DS1558
Pin Count	48
Operating Supply Voltage	5V
Power Supplies	5V
Interface	Parallel
Clock Frequency	0.032MHz
Logic Function	Clock
External Data Bus Width	8
Time Format	HH:MM:SS (24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	6mA @ 5V
Time-Min	SECONDS
Interrupt Capability	Y
Voltage - Supply, Battery	2.5V~3.7V
Volatile	NO
Length	7mm
Height Seated (Max)	1.2mm
Width	7mm
REACH SVHC	Unknown
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free