DS17885E-3+ Overview
There is an embedded version of real time clocks in the package 28-TSSOP (0.465, 11.80mm Width).This package has a package type of Tray.Electrical RTCs such as this have a 2.7V~3.7V 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, Daylight Savings, Leap Year, NVSRAM, Square Wave Output is ensured when operating, then the operation will be successful.There are 28 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 3V which is provided to it.A total of 28 pins are attached to this RTCs.There are a family named DS17885 that consarets of the RTCs .In this electrical digital time clock, the supply voltage is 2.5V~3.7V.In the RTC times, there is a memory of 8KB that is available for storing programs as well as data.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 3V is used.A total of 28 pins are equipped with the real time clock.Following an input signal, there are 1 timers that output a signal at a preset time.RTC time is essential that the supply voltage remain at 3V for maximum efficiency.
DS17885E-3+ Features
28-TSSOP (0.465, 11.80mm Width) package
28 terminations
28 pin count
3V power supplies
Be maintained at 3V for high efficiency.

DS17885E-3+ Applications
There are a lot of Maxim Integrated
DS17885E-3+ 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

Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	28-TSSOP (0.465, 11.80mm Width)
Number of Pins	28
Operating Temperature	0°C~70°C
Packaging	Tray
Published	2000
JESD-609 Code	e3
Feature	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Pbfree Code	yes
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	3 (168 Hours)
Number of Terminations	28
ECCN Code	EAR99
Type	Clock/Calendar
Terminal Finish	Matte Tin (Sn)
HTS Code	8542.39.00.01
Voltage - Supply	2.7V~3.7V
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	260
Supply Voltage	3V
Terminal Pitch	0.55mm
Time@Peak Reflow Temperature-Max (s)	30
Base Part Number	DS17885
Pin Count	28
Operating Supply Voltage	3V
Power Supplies	3V
Interface	Parallel
Memory Size	8KB
Clock Frequency	0.032MHz
Logic Function	Clock
External Data Bus Width	8
Number of Timers	1
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	2mA @ 2.7V~3.7V
Time-Min	SECONDS
Interrupt Capability	Y
Voltage - Supply, Battery	2.5V~3.7V
Volatile	YES
Length	11.8mm
Height Seated (Max)	1.2mm
Width	8mm
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free