Key facts
- Brand
- Intersil
- Model
- ISL12029
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-08-02
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Intersil ISL12029 Real Time Clock/Calendar with EEPROM Datasheet
The ISL12029 is a low power real time clock with a clock/calendar, power-fail indicator, clock output, and crystal compensation. It includes two periodic or polled alarms, intelligent battery backup switching, CPU Supervisor functions, and an integrated 512 x 8 bit EEPROM configured in 16 byte per page mode.
The device utilizes an external 32.768kHz crystal for the oscillator and tracks time with separate registers for hours, minutes, and seconds. It features calendar registers for date, month, year, and day of the week, accurate through 2099 with automatic leap year correction. The chip offers a 400kHz I2C interface and is available in 14 Ld SOIC and TSSOP packages.
Intersil ISL12029 specifications
| EEPROM Capacity | 512 x 8 Bits |
|---|---|
| Oscillator Frequency | 32.768kHz |
| I2C Data Transfer Rate | 400kHz |
| Supply Voltage Range (VDD) | 2.7V to 5.5V |
| Battery Supply Current (Typical) | 800nA |
| EEPROM Data Retention | 50 years |
| Package Types | 14 Ld SOIC and TSSOP |
Source: Intersil ISL12029 Real Time Clock/Calendar with EEPROM Datasheet
All Intersil ISL12029 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum year supported by the calendar?
The calendar is accurate through 2099 with automatic leap year correction.
From: Intersil ISL12029 Real Time Clock/Calendar with EEPROM Datasheet
What are the available package options?
The device is available in 14 Ld SOIC and 14 Ld TSSOP packages.
From: Intersil ISL12029 Real Time Clock/Calendar with EEPROM Datasheet
What is the data retention time for the EEPROM?
The EEPROM data retention is 50 years at temperatures below 75°C.
What is the maximum I2C clock frequency supported?
The device supports an I2C clock frequency up to 400 kHz.