器件名称: ISL12027IV30AZ-T
功能描述: Real Time Clock/Calendar with EEPROM
文件大小: 414.92KB 共28页
简 介:
ISL12027
New Features
Data Sheet
October 18, 2006
FN8232.4
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 512 x 8 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.
Features
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 512 x 8 Bits of EEPROM - 16-Byte Page Write Mode (32 total pages) - 8 Modes of Block Lock Protection - Single Byte Write Capability High Reliability - Data Retention: 50 years - Endurance: >2,000,000 Cycles Per Byte I2C* Interface - 400kHz Data Transfer Rate
Pinouts
ISL12027 (8 LD TSSOP) TOP VIEW
VBAT VDD X1 X2 1 2 3 4 8 7 6 5 SC……
