ISL12025IBZ-T

Description：IC RTC CLK/CALENDAR I2C 8SOIC
Series：-

SKU:dd1236dec3d3 Category: Real Time Clocks Brand: Renesas Electronics Corporation

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Product introduction

ISL12025IBZ-T is listed in the Real Time Clock range at ChipApex. The manufacturer field lists Renesas Electronics Corporation. Its product description is IC RTC CLK/CALENDAR I2C 8SOIC. Review the specifications below when checking this part for your BOM.

Real Time Clock specifications for ISL12025IBZ-T

Description：IC RTC CLK/CALENDAR I2C 8SOIC
Series：-
Package：Tape & Reel (TR)
Mfr：Renesas Electronics Corporation
Type：Clock/Calendar
Features：Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer
Memory Size：-
Time Format：HH:MM:SS (12/24 hr)
Date Format：YY-MM-DD-dd
Interface：I2C, 2-Wire Serial
Voltage - Supply：2.7V ~ 5.5V
Voltage - Supply, Battery：1.8V ~ 5.5V
Current - Timekeeping (Max)：10µA ~ 20µA @ 2.7V ~ 5.5V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC

Real Time Clock datasheet and documents for ISL12025IBZ-T

ISL12025IBZ-T

Real Time Clock Overview

The ISL12025IBZ-T is a low-power real-time clock/calendar device manufactured by Renesas Electronics Corporation, formerly Intersil. It features an I2C bus interface with a 400kHz data transfer rate and integrates 512x8-bit EEPROM configured in a 16-byte page format. The device includes two non-volatile alarms, a 64-bit unique ID, and on-chip oscillator compensation with digitally controlled trim capacitors. It operates within a supply voltage range of 2.7V to 5.5V for VDD and 1.8V to 5.5V for battery backup (VBAT). The component is housed in an 8-lead SOIC package and supports an operating temperature range from -40°C to +85°C.

Real Time Clock Feature Summary

Integrated 512x8-bit EEPROM with 16-byte page write mode and BlockLock protection
Two non-volatile alarms settable to second, minute, hour, day, month, or year
On-chip oscillator compensation with 64-position digitally controlled trim capacitor
CPU Supervisor functions including Power-on Reset, Low Voltage Sensing, and Watchdog Timer

Real Time Clock Applications

Utility Meters
Audio/Video Components
Network Routers, Hubs, Switches, Bridges
Cellular Infrastructure Equipment
POS Equipment

Real Time Clock Procurement Notes

The ISL12025IBZ-T is classified as an obsolete product with no recommended replacement available. Verification of current availability should be conducted directly with the manufacturer's Technical Support Center, as standard distribution channels may not stock this discontinued part number.

Real Time Clock Selection Notes

Designers must account for the device's obsolete status when selecting components for new hardware. The ISL12025 requires an external 32.768kHz quartz crystal for timekeeping. Ensure that the host system supports the specific I2C addressing and register map defined in the FN6371 datasheet, particularly regarding the three-step write enable process for Clock/Control Registers.

Real Time Clock Part Context

This component belongs to the ISL12025 family of micro power real-time clocks. The IBZ suffix indicates an 8-lead Small Outline Integrated Circuit (SOIC) package. The -T suffix denotes that the device is supplied in tape and reel packaging for automated assembly processes.