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ISL12028IB30AZ from INTERSIL

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ISL12028IB30AZ

Manufacturer: INTERSIL

Real Time Clock/Calendar with I2C Bus? and EEPROM

Partnumber Manufacturer Quantity Availability
ISL12028IB30AZ INTERSIL 655 In Stock

Description and Introduction

Real Time Clock/Calendar with I2C Bus? and EEPROM The ISL12028IB30AZ is a real-time clock (RTC) module manufactured by **INTERSIL** (now part of **Renesas Electronics**). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Timekeeping Accuracy:** ±5ppm (±0.432 seconds/day) at 25°C  
- **I²C Interface:** Supports standard (100kHz) and fast (400kHz) modes  
- **Battery Backup:** Operates down to 1.8V (for battery-backed RTC)  
- **Package:** 8-lead SOIC  

### **Descriptions:**
- The ISL12028IB30AZ is a low-power RTC with an integrated oscillator and battery backup support.  
- It provides timekeeping functions (seconds, minutes, hours, day, date, month, year) with leap-year compensation.  
- Includes two time-of-day alarms and a programmable square-wave output.  
- Features automatic power-fail detection and switchover to battery backup.  

### **Features:**
- **Low Power Consumption:** 400nA (typical) in battery backup mode.  
- **Battery Backup Support:** Seamless switchover to backup power.  
- **Two Time-of-Day Alarms:** Configurable for specific events.  
- **Programmable Square-Wave Output:** Frequencies from 1Hz to 32.768kHz.  
- **Automatic Leap-Year Compensation:** Valid up to 2099.  
- **Power-Fail Detection:** Monitors VDD and switches to backup mode when needed.  

This device is commonly used in applications requiring accurate timekeeping, such as industrial systems, medical devices, and embedded systems.

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