ISL12026AIBZ

Real Time Clock Overview

The ISL12026AIBZ is a micro-power real-time clock (RTC) integrated circuit manufactured by Renesas Electronics Corporation. It features an I2C bus interface and includes an onboard 512-bit EEPROM. The device operates within a supply voltage range of 2.7V to 5.5V, with battery backup support from 1.8V to 5.5V. It provides accurate timekeeping through the year 2099 with automatic leap year correction. The component is housed in an 8-lead SOIC package and supports an operating temperature range of -40°C to +85°C.

Real Time Clock Feature Summary

• Integrated 512-bit EEPROM for non-volatile data storage
• Intelligent battery backup switching mechanism
• Automatic leap year correction valid through 2099
• I2C serial interface for communication

Real Time Clock Applications

• Industrial control systems requiring precise time tracking
• Consumer electronics with calendar functionality
• Data logging equipment needing persistent timestamping

Real Time Clock Procurement Notes

The ISL12026AIBZ is designated as a discontinued product. Manufacturers have issued End-of-Life (EOL) notifications, indicating that production has ceased. Sourcing this component may require reliance on distributor surplus stock or secondary market channels. Verification of part authenticity and condition is critical due to the obsolescence status.

Real Time Clock Selection Notes

Designers should consider the EOL status when selecting this component for new products. Alternative RTCs with similar I2C interfaces and EEPROM integration should be evaluated for long-term supply stability. Ensure that the 8-SOIC package dimensions are compatible with existing PCB footprints if used for replacement purposes.

Real Time Clock Part Context

This part belongs to the ISL12026 family of real-time clocks. Variants such as the ISL12026IBZ and ISL12026AIVZ share similar core functionalities but differ in packaging (SOIC vs. TSSOP) and specific power control modes. The 'A' suffix typically denotes the Standard Mode Setting for power control, distinct from the Legacy Mode found in other variants.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers must perform independent cross-referencing to identify functional equivalents with compatible pinouts and electrical specifications.