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X1226S8I from XICOR

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X1226S8I

Manufacturer: XICOR

Real Time Clock/Calendar with EEPROM

Partnumber Manufacturer Quantity Availability
X1226S8I XICOR 658 In Stock

Description and Introduction

Real Time Clock/Calendar with EEPROM **Part X1226S8I Manufacturer: XICOR**  

### **Specifications:**  
- **Type:** Non-Volatile Static RAM (nvSRAM)  
- **Density:** 256Kbit (32K x 8)  
- **Interface:** Serial (I²C-Compatible)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Retention:** Minimum 100 years  
- **Endurance:** Unlimited read cycles, 1 million write cycles  
- **Package:** 8-pin SOIC (X1226S8I)  

### **Descriptions:**  
- Combines SRAM and EEPROM technologies for non-volatile data storage.  
- Automatic store operation on power loss (via built-in capacitor or external Vcap).  
- I²C-compatible serial interface for easy integration.  
- Low-power operation suitable for battery-backed applications.  

### **Features:**  
- **Non-Volatile Storage:** Retains data without power.  
- **Serial Interface:** Supports standard I²C protocols.  
- **High Reliability:** Built-in power-fail protection.  
- **Low Power Consumption:** Active and standby modes for efficiency.  
- **Hardware Write Protection:** Prevents accidental data corruption.  

For exact details, refer to the official XICOR datasheet.

Application Scenarios & Design Considerations

Real Time Clock/Calendar with EEPROM
Partnumber Manufacturer Quantity Availability
X1226S8I INTERSIL 15 In Stock

Description and Introduction

Real Time Clock/Calendar with EEPROM **Part X1226S8I Manufacturer: INTERSIL**  

### **Specifications:**  
- **Type:** Real-Time Clock (RTC) with Non-Volatile Memory  
- **Package:** 8-SOIC (Small Outline Integrated Circuit)  
- **Interface:** I²C (Inter-Integrated Circuit)  
- **Operating Voltage:** 2.7V to 5.5V  
- **Clock Accuracy:** ±5ppm (typical)  
- **Memory:** 256 bytes of non-volatile EEPROM  
- **Timekeeping Current:** 400nA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Battery Backup Support:** Yes (for continuous timekeeping)  

### **Descriptions:**  
The **X1226S8I** is a low-power RTC with integrated EEPROM, designed for applications requiring accurate timekeeping and data storage. It features an I²C interface for communication with microcontrollers and supports battery backup to maintain timekeeping during power loss.  

### **Features:**  
- **Battery-Backed RTC:** Maintains timekeeping during power interruptions.  
- **Low Power Consumption:** Ultra-low standby current for extended battery life.  
- **EEPROM Storage:** 256 bytes for user data storage.  
- **Automatic Leap Year Compensation:** Handles leap years up to 2100.  
- **Alarm Function:** Programmable alarm with interrupt output.  
- **Power-Fail Detection:** Monitors VCC and switches to backup supply if needed.  
- **I²C Interface:** Supports standard (100kHz) and fast (400kHz) modes.  

This part is commonly used in embedded systems, industrial controls, and consumer electronics requiring reliable timekeeping and data retention.

Application Scenarios & Design Considerations

Real Time Clock/Calendar with EEPROM

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