ISL1220 Low Power RTC with 8 Bytes of Battery Backed SRAM and Separate FOUT

The ISL1220 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, battery-backed user SRAM and separate FOUT and IRQ outputs.

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.

ISL1220 特点

Real Time Clock/Calendar
- Tracks Time in Hours, Minutes, and Seconds
- Day of the Week, Day, Month, and Year
Frequency Output pin
- 15 Selectable Output Frequencies
Single Alarm with Separate Interrupt pin
- 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
Small Package Option
- 10 Ld MSOP Package
Pb-Free Plus Anneal Available (RoHS Compliant)

ISL1220 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

ISL1220 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 $
ISL1220IUZ	量产	工业级	10 Ld MSOP	2	1.14
ISL1220IUZ-T	量产	工业级	10 Ld MSOP T+R	2	1.14