FEATURES
• Real Time Clock/Calendar
   — Tracks time in Hours, Minutes, Seconds and
      Hundredths of a Second
   — 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
• 32K x 8 Bits of EEPROM
   — 128-Byte Page Write Mode
   — 8 modes of Block Lock™ Protection
   — Single Byte Write Capability
• High Reliability
   — Data Retention: 100 years
   — Endurance: 100,000 cycles per byte
• 2-Wire™ Interface interoperable with I2C*
   — 400kHz data transfer rate
• Frequency Output (SW Selectable: Off, 1Hz, 100Hz,
   or 32.768kHz)
• Low Power CMOS
   — 1.25µA Operating Current (Typical)
• Small Package Options
   — 8 Ld EIAJ SOIC and 14 Ld TSSOP
• Repetitive Alarms
• Temperature Compensation

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