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ISL12026IBZ from INTERSIL

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ISL12026IBZ

Manufacturer: INTERSIL

Real Time Clock/Calendar with I2C Bus? and EEPROM

Partnumber Manufacturer Quantity Availability
ISL12026IBZ INTERSIL 30 In Stock

Description and Introduction

Real Time Clock/Calendar with I2C Bus? and EEPROM The ISL12026IBZ is a real-time clock (RTC) device manufactured by INTERSIL (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Supply Voltage:** 2.7V to 5.5V  
- **Timekeeping Current:** 400nA (typical) at 3V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Clock Accuracy:** ±5ppm (at 25°C)  
- **Interface:** I²C (400kHz max)  
- **Package:** 8-lead SOIC  

### **Descriptions:**
- The ISL12026IBZ is a low-power RTC with an integrated oscillator and battery backup support.  
- It provides timekeeping (seconds, minutes, hours, day, date, month, year) with leap-year compensation up to 2099.  
- Includes automatic Daylight Saving Time (DST) adjustment.  
- Features a timestamp function to record events.  

### **Features:**
- **Battery Backup:** Operates from an external battery when main power is lost.  
- **Alarm Function:** Programmable alarms with interrupt output.  
- **Digital Trim:** Adjusts oscillator frequency for improved accuracy.  
- **Power Management:** Ultra-low power consumption in battery mode.  
- **Tamper Detection:** Timestamp records power failures or tampering events.  
- **EEPROM:** 128 bytes of non-volatile storage for user data.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Real Time Clock/Calendar with I2C Bus? and EEPROM

Alternative Part Number

  • DS1307Z+ --: Widely available I2C real-time clock with integrated 56-byte SRAM in an 8-pin SOIC package, functionally similar to the ISL12026 RTC plus EEPROM combination and easy to source as a drop-in style replacement.
  • PCF8563T --: Low-power I2C real-time clock/calendar in an 8-pin SOIC package with a similar serial interface and supply range, offering a well-established alternative for RTC functions.
  • M41T81M6F --: I2C serial real-time clock with alarm and watchdog features in an 8-pin SOIC package, providing comparable timing and backup functionality for designs originally using the ISL12026.

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