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Renesas
Renesas Electronics
Description : Low Cost and Low Power I2C Bus Real Time Clock/Calendar Low Power and Low Cost RTC

Low Cost and Low Power I2C Bus Real Time Clock/Calendar Low Power and Low Cost RTC

The ISL12059 device is a Low Power Real Time clock with Clock/Calendar, and 512Hz/digital output 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.

Features
Real Time Clock/Calendar
    - Tracks Time in Hours, Minutes, and Seconds
    - Day of the Week, Date, Month, and Year
• 512Hz Frequency Output
• I2C Bus
    - 400kHz Data Transfer Rate
• Small Package Option
    - 8 Ld SOIC Package
    - Pb-Free (RoHS Compliant)
Low Cost 3V Alternative to M41T00S, DS1340 and ISL12008

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

Intersil
Intersil
Description : Low Cost and Low Power I2C Bus™ Real Time Clock/Calendar

Low Power and Low Cost RTC

The ISL12059 device is a Low Power Real Time clock with Clock/Calendar, and 512Hz/digital output 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.

Features
Real Time Clock/Calendar
    - Tracks Time in Hours, Minutes, and Seconds
    - Day of the Week, Date, Month, and Year
• 512Hz Frequency Output
• I2C Bus
    - 400kHz Data Transfer Rate
• Small Package Option
    - 8 Ld SOIC Package
    - Pb-Free (RoHS Compliant)
Low Cost 3V Alternative to M41T00S, DS1340 and ISL12008

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

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

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

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 with 6pF load capacitance. 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.

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
• Four Selectable Frequency Outputs
• Two 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 UTDFN
    - 8 Ld MSOP
    - 8 Ld SOIC
    - Pb-Free (RoHS Compliant)

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

Description : Low Cost and Low Power I2C-BusReal 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 Timewith 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.

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
•I2C 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

Description : Real Time Clock/Calendar with I2C Bus™ and EEPROM

Real Time Clock/Calendar with I2C Bus™ and EEPROM

The ISL12028 device is a Low Power Real Time clock with Clock/Calendar, Power-fail indicator, clock output and crystal compensation, two periodic or polled alarms (CMOS output), intelligent battery backup switching, CPU Supervisor, integrated 512x8-bit EEPROM configured in 16 bytes per page.

Features
Real Time Clock/Calendar
    - Tracks Time in Hours, Minutes and Seconds
    - Day of the Week, Day, Month and Year
    - 3 Selectable Frequency Outputs
• Two Non-Volatile Alarms
    - Settable on the Second, Minute, Hour, Day of the Week, Day, or Month
    - Repeat Mode (Periodic Interrupts)
• Automatic Backup to Battery or SuperCap
    - Power Failure Detection
    - 800nA Battery Supply Current
• On-Chip Oscillator Compensation
    - Internal Feedback Resistor and Compensation Capacitors
    - 64 Position Digitally Controlled Trim Capacitor
    - 6 Digital Frequency Adjustment Settings to ±30ppm
• 512x8 Bits of EEPROM:
    - 16-Byte Page Write Mode (32 total pages)
    - 8 Modes of BlockLock™ Protection
    - Single Byte Write Capability
    - Data Retention: 50 years
    - Endurance: >2,000,000 Cycles Per Byte
• CPU Supervisor Functions:
    - Power On Reset, Low Voltage Sense
    - Watchdog Timer (0.25s, 0.75s and 1.75s)
• I2C Interface
    - 400kHz Data Transfer Rate
• 14 Ld SOIC and 14 Ld TSSOP Packages
• Pb-Free (RoHS Compliant)

Applications
• Utility Meters
• HVAC Equipment
• Audio/Video Components
• Modems
• Network Routers, Hubs, Switches, Bridges
• Cellular Infrastructure Equipment
• Fixed Broadband Wireless Equipment
• Pagers/PDA
• POS Equipment
• Test Meters/Fixtures
• Office Automation (Copiers, Fax)
• Home Appliances
• Computer Products
• Other Industrial/Medical/Automotive

Pericom-Semiconductor
Pericom Semiconductor
Description : Real-Time Clock Module (I2C Bus)

Description
The PT7C4300 serial Real-Time clock is a Low-Power Clock/Calendar with a programmable square-wave output. Address and data are transferred serially via a 2-wire bidirectional bus. The Clock/Calendar provides seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in the 24-hour format indicator.

Features
• Using external 32.768kHz quartz crystal
• Supports I2C-Bus's high speed mode (400 kHz)
• Includes Time (Hour/Minute/Second) and calendar(Year/Month/Date/Day) counter functions (BCD code)
• Automatic Power-fail detect and switch circuitry of battery backup
• Operating range: 2.0V to 5.5V
• Software clock calibration
• Ultra-Low battery supply current of 1µA

ETC2
Unspecified
Description : Real-Time Clock Module (I2C Bus)

Product Description
The PT7C4337 serial Real-Time clock is a Low-Power Clock/Calendar with two programmable Time-of-day alarms and a programmable square-wave output.

Product Features
•  Using external 32.768kHz quartz crystal
•  Supports I2C-Bus's high speed mode (400 kHz)
•  Includes Time (Hour/Minute/Second) and calendar (Year/Month/Date/Day) counter functions (BCD code)
•  Programmable square wave output signal
•  Two Time-of-Day Alarms
•  Oscillator Stop Flag
•  Operating range: 1.8V to 5.5V

Intersil
Intersil
Description : I2C® Real Time Clock/Calendar with Frequency Output

Low Power RTC with 8 Bytes of Battery Backed SRAM and Separate FOUT

The ISL1220 device is a Low Power Real Time clock with timing and crystal compensation, Clock/Calendar, Power fail indicator, periodic or polled alarm, intelligent battery backup switching, battery-backed user SRAM and separate FOUT and IRQ outputs.
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.

Features
Real Time Clock/Calendar
    - Tracks Time in Hours, Minutes, and Seconds
    - Day of the Week, Day, Month, and Year
• Frequency Output pin
    - 15 Selectable Output Frequencies
• Single Alarm with Separate Interrupt pin
    - Settable to the Second, Minute, Hour, Day of the Week, Day, or Month
    - Single Event or Pulse Interrupt Mode
• Automatic Backup to Battery or Super Cap
Power Failure Detection
• On-Chip Oscillator Compensation
• 8 Bytes Battery-Backed User SRAM
• I2C Interface
    - 400kHz Data Transfer Rate
• 400nA Battery Supply Current
• Small Package Option
    - 10 Ld MSOP Package
• Pb-Free Plus Anneal Available (RoHS Compliant)

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
• POS Equipment
• Test Meters/Fixtures
• Office Automation (Copiers, Fax)
• Home Appliances
• Computer Products
• Other Industrial/Medical/Automotive

Pericom-Semiconductor
Pericom Semiconductor
Description : Real-Time Clock Module (I2C Bus)

Description
The PT7C4363 serial Real-Time clock is a Low-Power Clock/Calendar with a programmable square-wave output.
   
Features
• Using external 32.768kHz quartz crystal
• Supports I2C-Buss high speed mode (400 kHz)
• Includes Time (Hour/Minute/Second) and calendar
    (Year/Month/Date/Day) counter functions (BCD
    code)
• Programmable square wave output signal
• Oscillator stop flag
Low backup current: typ. 500nA at VDD=3.0V and
    TA=25°C
• Operating range: 1.8V to 5.5V
   

Pericom-Semiconductor
Pericom Semiconductor
Description : Real-Time Clock Module (I2C Bus)

Product Description
The PT7C4307 serial Real-Time clock is a Low-Power Clock/Calendar with a programmable square-wave output and 56 bytes of nonvolatile RAM.
Address and data are transferred serially via a 2-wire, bidirectional bus. The Clock/Calendar provides seconds, minutes, hours, day, date, month, and year information.
The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.
The PT7C4307 has a built-in Power sense circuit that detects Power failures and automatically switches to the battery supply.

Product Features
• Using external 32.768kHz quartz crystal
• Supports I2C-Buss high speed mode (400 kHz)
• Includes Time (Hour/Minute/Second) and calendar (Year/Month/Date/Day) counter functions (BCD code)
• Programmable square wave output signal
• 56-byte, battery-backed, nonvolatile (NV) RAM for data storage
• Automatic Power-fail detect and switch circuitry of battery backup
• Consumes less than 500nA in battery backup mode with oscillator running

 

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