ISL12029IB27Z-T

Real Time Clock Overview

The ISL12029IB27Z-T is a Real-Time Clock (RTC) manufactured by Renesas Electronics, formerly Intersil. It features an I2C bus interface and supports date formats of YY-MM-DD-dd and time formats of HH:MM:SS in 24-hour mode. The device includes 512 bytes of EEPROM storage capacity and incorporates backup switching functionality to maintain timekeeping during power transitions. It operates within a supply voltage range of 2.7 V to 5.5 V and is rated for industrial temperatures from -40°C to +85°C. The component is housed in a SOIC-14 package and is available in cut tape or reel packaging.

Real Time Clock Feature Summary

• I2C Bus Interface with Calendar and Clock functions
• 512 Bytes EEPROM Storage Capacity
• Backup Switching for Continuous Operation
• SOIC-14 Package with Industrial Temperature Range (-40°C to +85°C)

Real Time Clock Applications

• Industrial Control Systems requiring precise timekeeping
• Data Logging Equipment needing non-volatile storage
• Consumer Electronics with calendar and alarm features

Real Time Clock Procurement Notes

Verify the specific suffix 'T' indicates cut tape or reel packaging configuration as listed in distributor specifications. Confirm RoHS compliance status through official datasheets. Check current lifecycle status, as this part may be subject to limited availability or discontinuation notices from Renesas/Intersil. Ensure compatibility with existing PCB footprints for SOIC-14 packages.

Real Time Clock Selection Notes

Select this component when an I2C-compatible RTC with integrated EEPROM is required. The 512-byte memory allows for data logging alongside timekeeping. Verify that the system voltage falls within the 2.7V to 5.5V operating range. Consider the SOIC-14 package size constraints against available board space. Compare against similar models like ISL12028A if different pin counts are needed.

Real Time Clock Part Context

This part belongs to the ISL12029 series of real-time clocks from Renesas/Intersil. It shares core functionalities with other members of the family but differs in package type and specific ordering suffixes. The 'IB27' designation typically refers to the temperature grade and voltage range, while 'Z' often denotes lead-free/RoHS compliance. The '-T' suffix specifies the tape and reel or cut tape delivery method.

Real Time Clock Replacement Considerations

Direct substitutes include other parts in the ISL12029 series such as ISL12029IVAZ-T, provided pinout and package compatibility are verified. Cross-reference with ISL12028AIB27Z if a different package form factor is acceptable. Always consult the latest manufacturer datasheets for electrical parameter equivalence before substitution.