ISL12028AIV27Z-T Overview
You can find real time clocks in package TSSOP among the other packages that are available.Tape & Reel is the way time clock is packaged, which is the way time clock is intended to be.A transmission line with 14 terminations possesses the characteristic impedance of the RTC module terminating it.RTC real time clocks like this have a 3.3V supply voltage.The frequency of real time clocks' output should not be higher than 0.032MHz.The RTC module is mounted with mounting type Surface Mount.As a power supply for the real time clock, a value of 3/5V is used.A total of 14 pins are equipped with the real time clock.RTC time is essential that the supply voltage remain at 3.3V for maximum efficiency.Operating temperatures should be greater than -40°C.A temperature lower than 85°C should be used for operating.A minimum voltage of 2.7V is required for operation.There is a maximal supply voltage of 5.5V when real time clocks are operating.
ISL12028AIV27Z-T Features
TSSOP package
14 terminations
3/5V power supplies
Be maintained at 3.3V for high efficiency.

ISL12028AIV27Z-T Applications
There are a lot of Intersil (Renesas Electronics America)
ISL12028AIV27Z-T 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
Package / Case	TSSOP
Number of Pins	14
Packaging	Tape & Reel
Published	2005
JESD-609 Code	e3
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	14
ECCN Code	EAR99
Terminal Finish	Matte Tin (Sn) - annealed
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
HTS Code	8542.39.00.01
Terminal Position	DUAL
Supply Voltage	3.3V
Terminal Pitch	0.65mm
Operating Supply Voltage	3.3V
Power Supplies	3/5V
Temperature Grade	INDUSTRIAL
Interface	2-Wire, I2C, Serial
Max Supply Voltage	5.5V
Min Supply Voltage	2.7V
Clock Frequency	0.032MHz
Logic Function	Clock
Time Format	HH:MM:SS
Date Format	YY-MM-DD-dd
Time-Min	SECONDS
Interrupt Capability	Y
Volatile	YES
Information Access Method	I2C
Length	5mm
Height Seated (Max)	1.2mm
Width	4.4mm
Radiation Hardening	No
RoHS Status	RoHS Compliant
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173, 4.40mm Width)
Operating Temperature	-40°C~85°C
Packaging	Tape & Reel (TR)
Feature	Alarm, Leap Year, Supervisor, Watchdog Timer
Part Status	Obsolete
Type	Clock/Calendar
Voltage - Supply	2.7V~5.5V
Reach Compliance Code	unknown
Base Part Number	ISL12028A
Interface	I2C, 2-Wire Serial
Time Format	HH:MM:SS (12/24 hr)
Current - Timekeeping (Max)	10μA~20μA @ 2.7V~5.5V
Voltage - Supply, Battery	1.8V~5.5V
RoHS Status	ROHS3 Compliant