ISL12027

ISL12027 Description

ISL12027 Categories

ISL12027 Manufacturer

ISL12027 Datasheet (PDF)

ISL12027 Price & Availability

ISL12027 Features

• Real Time Clock/Calendar
  • Tracks Time in Hours, Minutes and Seconds
  • Day of the Week, Day, Month and Year
• 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
• 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
• High Reliability
  • Data Retention: 50 years
  • Endurance: >2,000,000 Cycles Per Byte
• I²C-bus? Interface
  • 400kHz Data Transfer Rate
• 800nA Battery Supply Current
• Package Options
  • 8 Ld SOIC and 8 Ld TSSOP Packages
• Pb-Free (RoHS Compliant)

ISL12027 Description

The ISL12027 device is a low power real time clock with timing and crystal compensation, clock/calender, power-fail indicator, two periodic or polled alarms, intelligent battery backup switching, CPU Supervisor and integrated 512x8-bit EEPROM, in 16 Byte per page format.

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.

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