DS1501WZ+ Overview
real time clocks is located in package 28-SOIC (0.295, 7.50mm Width).As of Tube, time clock is packaged in this way.There is 3V~3.6V voltage supply for this electrical RTC.It can be said that this electrical real time clock belongs to the Clock/Calendar type.The real time clock (RTC) that is mounted in the way of Surface Mount is connected to this circuit board.In order to operate properly, the temperature should be 0°C~70°C.During the course of operation, Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K can be ensured.There is the possibility of terminating transmission lines with 28 terminations, which means that the equipment used to terminate the line will match its characteristic impedance.In this case, the voltage supplied to the electronic component is 3.3V.A total of 28 pins are included in this product.DS1501 are the family name of RTCs .As far as the supply voltage for this electrical digital time clock is concerned, it is 2.5V~3.7V.For the purpose of storing data and programs, the RTC times are embedded with a storage capacity of 256B.There should be no frequency greater than 0.032MHz in real time clocks' output.Mounting type Surface Mount matches the RTC module.A total of 28 pins are attached to this real time clock.1 timer real time clocks send out a signal at a preset time based on input signals.Maintaining the supply voltage at 3.3V is the key to high efficiency.
DS1501WZ+ Features
28-SOIC (0.295, 7.50mm Width) package
28 terminations
28 pin count
Be maintained at 3.3V for high efficiency.

DS1501WZ+ Applications
There are a lot of Maxim Integrated
DS1501WZ+ Real Time Clocks applications.

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

Factory Lead Time	8 Weeks
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	28-SOIC (0.295, 7.50mm Width)
Number of Pins	28
Operating Temperature	0°C~70°C
Packaging	Tube
Published	2002
Feature	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	28
ECCN Code	EAR99
Type	Clock/Calendar
HTS Code	8473.30.11.80
Voltage - Supply	3V~3.6V
Terminal Position	DUAL
Supply Voltage	3.3V
Terminal Pitch	1.27mm
Base Part Number	DS1501
Pin Count	28
Operating Supply Voltage	3.3V
Interface	Parallel
Memory Size	256B
Clock Frequency	0.032MHz
Logic Function	Clock
External Data Bus Width	8
Number of Timers	1
Time Format	HH:MM:SS (24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	4mA @ 3V~3.6V
Time-Min	SECONDS
Interrupt Capability	Y
Voltage - Supply, Battery	2.5V~3.7V
Volatile	YES
Length	17.9mm
Height Seated (Max)	2.65mm
Width	7.5mm
Radiation Hardening	No
RoHS Status	ROHS3 Compliant