ISL12027IVZ-T

Real Time Clock Overview

The ISL12027IVZ-T is a Real-Time Clock (RTC) and calendar integrated circuit manufactured by Renesas Electronics, formerly Intersil. It features an I2C bus interface for communication and provides date and time information in YY-MM-DD-dd and HH:MM:SS (24-hour) formats. The device includes 512 bytes of EEPROM for data storage and supports battery backup switching to maintain operation during power loss. It operates within a supply voltage range of 2.7 V to 5.5 V and functions reliably across an industrial temperature range of -40°C to +85°C. The component is housed in an 8-pin TSSOP package.

Real Time Clock Feature Summary

• Integrated Real-Time Clock with Calendar functionality supporting leap years
• Built-in 512-byte EEPROM for non-volatile data retention
• I2C serial bus interface for low pin-count connectivity
• Hardware battery backup switching mechanism

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Consumer electronics with calendar features
• Networking equipment needing timestamping capabilities
• Computing applications utilizing RTC/Calendar functions

Real Time Clock Procurement Notes

The ISL12027IVZ-T is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and sourcing may require checking distributor stock levels or alternative channels. Verify RoHS compliance status through official documentation before procurement.

Real Time Clock Selection Notes

Select this component when an I2C-compatible RTC with integrated EEPROM is required. Ensure the design supports the 2.7V to 5.5V operating voltage range and accommodates the TSSOP-8 package dimensions. Confirm that the 512-byte memory capacity meets application data storage needs.

Real Time Clock Part Context

This part belongs to the ISL12027 series of real-time clocks. It shares functional similarities with other variants like the ISL12027IB27AZ-T but differs in packaging and specific suffix configurations. The IVZ-T designation indicates the TSSOP-8 package and tape-and-reel shipping format.

Real Time Clock Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer obsolescence notices for potential recommended replacements.