DS1557P-70+ Overview
There is an embedded version of real time clocks in the package 34-PowerCap™ Module.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 0°C~70°C.If Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K is ensured when operating, then the operation will be successful.There are 34 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 34 pins are attached to this RTCs.There are a family named DS1557 that consarets of the RTCs .In this electrical digital time clock, the supply voltage is 3V.In the RTC times, there is a memory of 512KB that is available for storing programs as well as data.Ensure that the output frequency does not exceed 0.032MHz.As a power supply for the real time clock, a value of 5V is used.
DS1557P-70+ Features
34-PowerCap™ Module package
34 terminations
34 pin count
5V power supplies

DS1557P-70+ Applications
There are a lot of Maxim Integrated
DS1557P-70+ 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	10 Weeks
Mounting Type	Surface Mount
Package / Case	34-PowerCap™ Module
Surface Mount	YES
Operating Temperature	0°C~70°C
Packaging	Tray
Published	2003
JESD-609 Code	e3
Feature	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	34
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	DUAL
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Supply Voltage	5V
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	DS1557
Pin Count	34
JESD-30 Code	R-XDMA-U34
Qualification Status	Not Qualified
Power Supplies	5V
Interface	Parallel
Memory Size	512KB
Clock Frequency	0.032MHz
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	3V
Volatile	NO
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free