ISL12027IV27AZ Overview
real time clocks is located in package TSSOP.There is the possibility of terminating transmission lines with 8 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.There should be no frequency greater than 0.032MHz in real time clocks' output.Mounting type Surface Mount matches the RTC module.For powering the real time clock, a power supply with a voltage of 3/5V is used.A total of 8 pins are attached to this real time clock.Maintaining the supply voltage at 3.3V is the key to high efficiency.RTC time is advisable to operate at a temperature above -40°C.85°C is the optimal operating temperature.With the minimal voltage of 2.7V, real time clocks are capable of operating.This real time clock operates with a max supply voltage of 5.5V.
ISL12027IV27AZ Features
TSSOP package
8 terminations
3/5V power supplies
Be maintained at 3.3V for high efficiency.

ISL12027IV27AZ Applications
There are a lot of Intersil (Renesas Electronics America)
ISL12027IV27AZ 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

Mount	Surface Mount
Package / Case	TSSOP
Number of Pins	8
Published	2010
JESD-609 Code	e3
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	8
ECCN Code	EAR99
Terminal Finish	Matte Tin (Sn) - annealed
Max Operating Temperature	85°C
Min Operating Temperature	-40°C
Terminal Position	DUAL
Peak Reflow Temperature (Cel)	260
Supply Voltage	3.3V
Terminal Pitch	0.65mm
Time@Peak Reflow Temperature-Max (s)	40
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	NO
Information Access Method	I2C
Height	1.05mm
Length	3.05mm
Width	4.5mm
Radiation Hardening	No
RoHS Status	RoHS Compliant
Mounting Type	Surface Mount
Package / Case	8-TSSOP (0.173, 4.40mm Width)
Supplier Device Package	8-TSSOP
Operating Temperature	-40°C~85°C
Packaging	Tube
Feature	Alarm, Leap Year, Supervisor, Watchdog Timer
Part Status	Obsolete
Type	Clock/Calendar
Voltage - Supply	2.7V~5.5V
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
Base Part Number	ISL12027
Pin Count	8