ISL1218 Low Power RTC with Battery Backed SRAM

The ISL1218 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 and 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.

ISL1218 特点

Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
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
8 Bytes Battery-Backed User SRAM
I2C Interface
- 400kHz Data Transfer Rate
400nA Battery Supply Current
Same Pin Out as ST M41Txx and Maxim DS13xx Devices
Small Package Options
- 8 Ld MSOP and SOIC Packages
Pb-Free Plus Anneal Available (RoHS Compliant)

ISL1218 应用

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

ISL1218 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 $
ISL1218IBZ	量产	工业级	8 Ld SOIC	1	1.27
ISL1218IBZ-T	量产	工业级	8 Ld SOIC T+R	1	1.27
ISL1218IUZ	量产	工业级	8 Ld MSOP	2	1.33
ISL1218IUZ-T	量产	工业级	8 Ld MSOP T+R	2	1.33