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FN6756.1
ISL12058
Low Cost and Low Power I
2
C-Bus™ Real Time Clock/Calendar
Low Power and Low Cost RTC with Alarm
Function
The ISL12058 device is a low power real time clock 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.
Pinouts
ISL12058
(8 LD SOIC, MSOP)
TOP VIEW
ISL12058
(8 LD 2x2 µTDFN, 8 LD 3x3 TDFN)
TOP VIEW
Features
• Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Date, Month, and Year
• 4 Selectable Frequency Outputs
• 2 Alarms
- Settable to the Second, Minute, Hour, Day of the Week,
Date, or Month
•I
2
C Interface
- 400kHz Data Transfer Rate
• Small Package Options
- 8 Ld 2mmx2mm µTDFN Package
- 8 Ld 3mmx3mm TDFN Package
- 8 Ld MSOP Package
- 8 Ld SOIC Package
- Pb-Free (RoHS Compliant)
• Low Cost 3V Alternative to ISL1208 and ISL12082
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
X1
X2
NC
GND
1
2
3
4
8
7
6
5
V
DD
IRQ/F
OUT
SCL
SDA
2
3
4
1
7
6
5
8
X1
X2
NC
GND
V
DD
IRQ/F
OUT
SCL
SDA
Data Sheet December 10, 2015
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright Intersil Americas LLC 2009, 2015. All Rights Reserved
I
2
C-busAll other trademarks mentioned are the property of their respective owners.
