ISL12029IB27Z

Real Time Clock Overview

The ISL12029IB27Z is a Real-Time Clock (RTC) IC 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 utilizes backup switching for power management. It operates within a supply voltage range of 2.7 V to 5.5 V and functions reliably across an industrial temperature range from -40°C to +85°C. The component is housed in a 14-SOIC package.

Real Time Clock Feature Summary

• I2C serial interface for communication
• Integrated 512-byte EEPROM
• Backup switching capability
• Industrial temperature range (-40°C to +85°C)

Real Time Clock Applications

• Industrial controls requiring precise timekeeping
• Data logging systems with non-volatile storage needs
• Embedded devices utilizing I2C connectivity

Real Time Clock Procurement Notes

The ISL12029IB27Z is identified as End-of-Life (EOL) or obsolete by major distributors such as Mouser. Availability is restricted, and the part may only be obtainable through limited stock or factory special orders. Verification of current lifecycle status and alternative sourcing channels is required before procurement planning.

Real Time Clock Selection Notes

Select this component when an I2C-compatible RTC with integrated EEPROM is necessary. Ensure the design accommodates the 14-SOIC package dimensions and the 2.7V to 5.5V operating voltage range. Verify that the system can support the backup switching mechanism if primary power loss occurs.

Real Time Clock Part Context

This part belongs to the ISL12029 series of real-time clocks. It shares functional similarities with other variants like the ISL12029AIB27Z but differs in specific packaging or suffix configurations. The manufacturer transitioned from Intersil to Renesas Electronics during its lifecycle.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, engineering change notices (ECNs) or direct pin-to-pin replacements should be verified against official Renesas datasheets.