DS1305EN/T&R Overview
There is an embedded version of real time clocks in the package 20-TSSOP (0.173, 4.40mm Width).This package has a package type of Tape & Reel (TR).Electrical RTCs such as this have a 2V~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, NVSRAM, Trickle-Charger is ensured when operating, then the operation will be successful.In this electrical digital time clock, the supply voltage is 2V~5.5V.In the RTC times, there is a memory of 96B that is available for storing programs as well as data.
DS1305EN/T&R Features
20-TSSOP (0.173, 4.40mm Width) package

DS1305EN/T&R Applications
There are a lot of Rochester Electronics, LLC
DS1305EN/T&R 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

Mounting Type	Surface Mount
Package / Case	20-TSSOP (0.173, 4.40mm Width)
Supplier Device Package	20-TSSOP
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Feature	Alarm, Leap Year, NVSRAM, Trickle-Charger
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Type	Clock/Calendar
Voltage - Supply	2V~5.5V
Interface	SPI
Memory Size	96B
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd
Current - Timekeeping (Max)	25.3μA~81μA @ 2V~5V
Voltage - Supply, Battery	2V~5.5V
RoHS Status	Non-RoHS Compliant