DS1557WP-120+ Overview
Real time clocks is embedded in the 34-PowerCap™ Module package.Time clock is packaged in the way of Tray.The supply voltage of this electrical RTC is 2.97V~3.63V.The type of this electrical real time clock is Clock/Calendar.This real time clock (RTC) is mounted in the way of Surface Mount.The operating temperature should be 0°C~70°C.Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K can be ensured when operating.There are 34 terminations, which are the practice of ending a transmission line welectronic time clocksh a RTC module that matches the characteristic impedance of the line.The supply voltage of this RTC real time clock is 3.3V.It is equipped with 34 pins.RTCs belongs to DS1557 family.The supply voltage of this electrical digital time clock is 3V.The RTC times embed a memory of 512KB available for storing programs and data.Real time clocks' output frequency should not exceed 0.032MHz.It operates from 3.3V power supplies.There are 34 pins, which are pronged contacts as part of a signal interface in a computer or other communications real time clock.
DS1557WP-120+ Features
34-PowerCap™ Module package
34 terminations
34 pin count
3.3V power supplies

DS1557WP-120+ Applications
There are a lot of Maxim Integrated
DS1557WP-120+ Real Time Clocks applications.

Mobile telephones
Portable instruments
Electronic metering
Battery powered products
Automotive
Industrial
Digital still camera
Digital video camera
Printers
Copy machines

Factory Lead Time	6 Weeks
Mounting Type	Surface Mount
Package / Case	34-PowerCap™ Module
Surface Mount	YES
Number of Pins	34
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	2.97V~3.63V
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Supply Voltage	3.3V
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Base Part Number	DS1557
Pin Count	34
Qualification Status	Not Qualified
Power Supplies	3.3V
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)	4mA @ 3.3V
Time-Min	SECONDS
Interrupt Capability	Y
Voltage - Supply, Battery	3V
Volatile	NO
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free