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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

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

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

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

Part Name(s) : M5832 MSM5832
OKI
Oki Electric Industry
Description : MICROPROCESSOR Real-Time CLOCK / CALENDAR

MICROPROCESSOR Real-Time CLOCK / CALENDAR

Part Name(s) : HT1382
Holtek
Holtek Semiconductor
Description : I2C/3-Wire Real Time Clock

General Description
The HT1382 is a low power Real Time clock device with two serial interface: I2C or 3-wire. The interface mode is selected by the chosen chip version. The device provides both clock and calendar information in BCD format and also includes alarm functions. The calendar is accurate until the year 2099 and includes automatic leap year correction.

Features
Real Time Clock/Calendar Functions
  - Includes: Sec, Minutes, Hours, Day, Date, Month, and year in BCD format
Clock operating voltage: 2.0V~5.5V
Supply voltage VDD=2.7V~5.5V
Automatic leap year correction, valid until year 2099
Automatic supply switch over
Integrated oscillator load capacitors - CL=12.5pF
Clock compensation
Programmable alarm and interrupt function
15 selectable frequency outputs
4 Bytes EEPROM for user
Serial commutation via I2C or 3-wire interface
8-pin DIP, SOP and MSOP package for I2C interface
10-pin MSOP package for 3-wire interface

Applications
Utility meters
Consumer electronics
Portable equipment
Wireless equipment
POS equipment
Computer products
Other industrial/Medical/Automotive applications

Xicor
Xicor -> Intersil
Description : Real Time Clock/Calendar

DESCRIPTION
The X1205 device is a Real Time Clock with Clock/Calendar, two polled alarms, oscillator compensation, and battery backup switch.

FEATURES
Real Time Clock/Calendar
   —Tracks Time in Hours, Minutes, and Seconds
   —Day of the Week, Day, Month, and Year
• 2 Polled Alarms (Non-volatile)
   —Settable on the Second, Minute, Hour, Day of
      the Week, Day, or Month
   —Repeat Mode (periodic interrupts)
• Oscillator Compensation on chip
   —Internal feedback resistor and compensation
      capacitors
   —64 position Digitally Controlled Trim Capacitor
   —6 digital frequency adjustment settings to
      ±30ppm
• Battery Switch or Super Cap Input
• 2-Wire™ Interface interoperable with I2C*
   —400kHz data transfer rate
• Low Power CMOS
   —1.25µA Operating Current (Typical)
• Small Package Options
   —8-Lead SOIC and 8-Lead TSSOP

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

Description : Low Cost and Low Power I2C-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 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

NXP
NXP Semiconductors.
Description : Real-Time Clock/Calendar

General description
The PCF8593 is a CMOS1 clock and calendar circuit, optimized for low power consumption. Addresses and data are transferred serially via the two-line bidirectional I2C-bus. The built-in word address register is incremented automatically after each written or read data byte. The built-in 32.768 kHz oscillator circuit and the first 8 bytes of the RAM are used for the clock, calendar, and counter functions. The next 8 bytes can be
programmed as alarm registers or used as free RAM space.

Features and benefits
„ I2C-bus interface operating supply voltage: 2.5 V to 6.0 V
„ Clock operating supply voltage 1.0 V to 6.0 V at 0 °C to +70 °C
„ 8 bytes scratchpad RAM (when alarm not used)
„ Data retention voltage: 1.0 V to 6.0 V
„ External RESET input resets I2C interface only
„ Operating current (at fSCL = 0 Hz, 32 kHz Time base, VDD = 2.0 V): typical 1 μA
„ Clock function with four year calendar
„ Universal Timer with alarm and overflow indication
„ 24 hour or 12 hour format
„ 32.768 kHz or 50 Hz Time base
„ Serial input and output bus (I2C-bus)
„ Automatic word address incrementing
„ Programmable alarm, Timer, and interrupt function
„ Space-saving SO8 package available
„ Slave addresses: A3h for reading, A2h for writing

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