ISL12025 Real-Time Clock/Calendar with I2C BusTM and EEPROM

The ISL12025 device is a low power real-time clock with timing and crystal compensation, clock/calender, 64-bit unique ID, power-fail indicator, two periodic or polled alarms, intelligent battery backup switching, CPU Supervisor and integrated 512x8-bit EEPROM, in a 16 Bytes 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.

ISL12025 特点

• Real-Time Clock/Calendar
  • Tracks Time in Hours, Minutes and Seconds
  • Day of the Week, Day, Month and Year
• 64-Bit Unique ID
• 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 Super Cap
• 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-Bytes Page Write Mode (32 total pages)
  • 8 Modes of Block LockTM Protection
  • Single Byte Write Capability
• High Reliability
  • Data Retention: 50 years
  • Endurance: 2,000,000 Cycles Per Byte
• I2C Interface
  • 400kHz Data Transfer Rate
• 800nA Battery Supply Current
• Package Options
  • 8 Ld SOIC and 8 Ld TSSOP Packages
• Pb-Free (RoHS Compliant)

ISL12025 应用

• Utility Meters
• 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

ISL12025 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
ISL12025IBZ	量产	工业级	8 Ld SOIC	1	1.91
ISL12025IBZ-T	量产	工业级	8 Ld SOIC T+R	1	1.91
ISL12025IVZ	量产	工业级	8 Ld TSSOP	1	1.95
ISL12025IVZ-T	量产	工业级	8 Ld TSSOP T+R	1	1.95

ISL12025 应用技术支持与电子电路设计开发资源下载

1. ISL12025 数据资料 datatSheet 下载.PDF
2. Timing /Circuits 定时电路产品选型指南 . pdf