ISL1219 Low Power RTC with Battery Backed SRAM and Event Detection

The ISL1219 device is a low power real time clock with Event Detect and Time Stamp function, timing and crystal compensation, clock/calendar, power fail indicator, periodic or polled alarm, intelligent battery backup switching and 2 Bytes of battery-backed user SRAM.

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.

ISL1219 特点

Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
Security and Event Functions
- Tamper detection with Time Stamp in Normal and Battery Backed modes
- Event Detection During Battery Backed or Normal Modes
- Selectable Event Input Sampling Rates Allows Low Power Operation
- Selectable Glitch Filter on Event Input Monitor
15 Selectable Frequency Outputs
Single Alarm
- 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
2 Bytes Battery-Backed User SRAM
I2C Interface
- 400kHz Data Transfer Rate
400nA Battery Supply Current
Small Package
- 10 Ld MSOP
Pb-Free Plus Anneal Available (RoHS Compliant)

ISL1219 应用

Utility Meters
Set Top Box/Modem
POS Equipment
Network Routers, Hubs, Switches, Bridges
Cellular Infrastructure Equipment
Fixed Broadband Wireless Equipment
Test Meters/Fixtures
Vending Machine Management
Security and Anti Tampering Applications
- Panel/Enclosure Status
- Warranty Reporting
- Time Stamping Applications
- Patrol/Security Check (Fire or Light Equipment)
- Automotive Applications

ISL1219 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 $
ISL1219IUZ	量产	工业级	10 Ld MSOP	2	1.32
ISL1219IUZ-T	量产	工业级	10 Ld MSOP T+R	2	1.32