ISL12057 Low Cost and Low Power I<sup>2</sup>C RTC Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function and Dual IRQ pins

ISL12057

Low Cost and Low Power I²C RTC Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function and Dual IRQ pins

	Features Description		iSim Design Simulation
	Technical Documentation		Tools And Support
	Pricing / Samples		Related Devices

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	ISL12057IBZ
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	ISL12057IUZ
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	ISL12057IBZ
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	ISL12057IBZ	Details
	ISL12057IBZ-T	Details
	ISL12057IRUZ-T	Details
	ISL12057IUZ	Details
	ISL12057IUZ-T	Details

Datasheet
	ISL12057
	Low Cost and Low Power I²C RTC Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function and Dual IRQ pins

V_CC (V)

1.4 to 3.6

I_S (nA)

400

Alarms

Selectable Frequency Output

IRQ_bar

IRQ1/f_OUT, IRQ2

F_OUT

IRQ1/f_OUT

POR

Other Functions

Dual Alarms, Dual IRQs

Product Information

Key Features

Pin Compatible to Maxim DS1337
Functionally Equivalent to Maxim DS1337
Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Date, Month, and Year
Dual Interrupts for Frequency Output and Alarm interrupts
4 Selectable Frequency Outputs
2 Alarms
- Settable to the Second, Minute, Hour, Day of the Week, and Date
I²C Interface
- 400kHz Data Transfer Rate
Small Package Options
- 8 Ld 2mmx2mm μTDFN
- 8 Ld MSOP
- 8 Ld SOIC
- Pb-Free (RoHS Compliant)

Description

The ISL12057 device is a low power real time clock that is pin compatible and functionally equivalent to Maxim DS1337 with clock/calendar and alarm function.

The oscillator uses an external, low-cost 32.768kHz crystal. The real time clock tracks time with separate registers for hours, minutes, and seconds. The device has calendar registers for date, month, year and day of the week. The calendar is accurate through 2099, with automatic leap year correction.

Pricing / Packaging / Samples / Ordering

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

	Part No.	Design-In Status	Temp.	Package	MSL	Price US $

	ISL12057IBZ	Active	Ind	8 Ld SOIC	2	0.92

	ISL12057IBZ-T	Active	Ind	8 Ld SOIC T+R	2	0.92

	ISL12057IRUZ-T	Active	Ind	8 Ld uTDFN T+R	1	0.92

	ISL12057IUZ	Active	Ind	8 Ld MSOP	1	0.92

	ISL12057IUZ-T	Active	Ind	8 Ld MSOP T+R	1	0.92

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing

Technical Documentation

Application Note(s):
Addressing Power Issues in Real Time Clock Applications
Datasheet(s):
Low Cost and Low Power I²C RTC Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function and Dual IRQ pins
Technical Brief(s):
Replacing the Maxim DS1337 RTC with the ISL12057
Technical Homepage:
Timing Circuits

Tools And Support
iSim Design Simulation
No Models Available

Application Block Diagrams

Applications

Utility Meters
HVAC Equipment
Audio/Video Components
Set-Top Box/Television
Modems
Network Routers, Hubs, Switches, Bridges
Cellular Infrastructure Equipment
Fixed Broadband Wireless Equipment
Pagers/PDA
Point Of Sale Equipment
Test Meters/Fixtures
Office Automation (Copiers, Fax)
Home Appliances
Computer Products
Other Industrial/Medical/Automotive

Related Devices

Parametric Table

	ISL12058		Low Cost and Low Power I²C-Bus™ Real Time Clock/Calendar Low Power and Low Cost RTC with Alarm Function
	ISL12059		Low Cost and Low Power I²C Bus™ Real Time Clock/Calendar Low Power and Low Cost RTC