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DS1249Y from DALLAS,MAXIM - Dallas Semiconductor

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DS1249Y

Manufacturer: DALLAS

2048k Nonvolatile SRAM

Partnumber Manufacturer Quantity Availability
DS1249Y DALLAS 2000 In Stock

Description and Introduction

2048k Nonvolatile SRAM The DS1249Y is a nonvolatile static RAM (NVSRAM) manufactured by DALLAS (now part of Maxim Integrated). Here are its key specifications:

1. **Memory Size**: 4Mb (512K x 8)  
2. **Technology**: Combines SRAM with an embedded lithium energy source and control circuitry for nonvolatility.  
3. **Data Retention**: Minimum 10 years without power.  
4. **Operating Voltage**: 4.5V to 5.5V.  
5. **Access Time**: 70ns (maximum).  
6. **Package**: 32-pin DIP (Dual In-line Package).  
7. **Operating Temperature Range**: 0°C to +70°C (commercial).  
8. **Write Cycles**: Unlimited (like standard SRAM).  
9. **Automatic Power-Fail Protection**: Switches to battery backup when VCC falls below tolerance.  

These are the factual specifications of the DS1249Y as provided by the manufacturer.

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