ISL12027 Real Time Clock/Calendar with EEPROM

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.

ISL12027 特点

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 BlockLockTM Protection
- Single Byte Write Capability
High Reliability
- Data Retention: 50 years
- Endurance: >2,000,000 Cycles Per Byte
I2C-busTM Interface
- 400kHz Data Transfer Rate
800nA Battery Supply Current
Package Options
- 8 Ld SOIC and 8 Ld TSSOP Packages
Pb-Free (RoHS Compliant)

ISL12027 应用

Utility Meters
HVAC Equipment
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

ISL12027 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 $
ISL12027IB27AZ	量产	工业级	8 Ld SOIC	1	1.65
ISL12027IB27AZ-T	量产	工业级	8 Ld SOIC T +R	1	1.65
ISL12027IB27Z	量产	工业级	8 Ld SOIC	1	1.65
ISL12027IB27Z-T	量产	工业级	8 Ld SOIC T +R	1	1.65
ISL12027IB30AZ	量产	工业级	8 Ld SOIC	1	1.65
ISL12027IB30AZ-T	量产	工业级	8 Ld SOIC T +R	1	1.65
ISL12027IBAZ	量产	工业级	8 Ld SOIC	1	1.65
ISL12027IBAZ-T	量产	工业级	8 Ld SOIC T +R	1	1.65
ISL12027IBZ	量产	工业级	8 Ld SOIC	1	1.65
ISL12027IBZ-T	量产	工业级	8 Ld SOIC T +R	1	1.65
ISL12027IV27AZ	量产	工业级	8 Ld TSSOP	1	1.71
ISL12027IV27AZ-T	量产	工业级	8 Ld TSSOP T+R	1	1.71
ISL12027IV27Z	量产	工业级	8 Ld TSSOP	1	1.71
ISL12027IV27Z-T	量产	工业级	8 Ld TSSOP T+R	1	1.71
ISL12027IV30AZ	量产	工业级	8 Ld TSSOP	1	1.71
ISL12027IV30AZ-T	量产	工业级	8 Ld TSSOP T+R	1	1.71
ISL12027IVAZ	量产	工业级	8 Ld TSSOP	1	1.71
ISL12027IVAZ-T	量产	工业级	8 Ld TSSOP T+R	1	1.71
ISL12027IVZ	量产	工业级	8 Ld TSSOP	1	1.71
ISL12027IVZ-T	量产	工业级	8 Ld TSSOP T+R	1	1.71