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DS1646 from DALLAS,MAXIM - Dallas Semiconductor

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DS1646

Manufacturer: DALLAS

Nonvolatile Real-Time Clocks RAM

Partnumber Manufacturer Quantity Availability
DS1646 DALLAS 2000 In Stock

Description and Introduction

Nonvolatile Real-Time Clocks RAM The DS1646 is a nonvolatile timekeeping RAM manufactured by Dallas Semiconductor (now part of Maxim Integrated). Here are its key specifications:

1. **Functionality**: Combines a real-time clock (RTC) with 32KB of nonvolatile static RAM (NV SRAM).  
2. **Timekeeping**: Tracks seconds, minutes, hours, day, date, month, and year with leap-year compensation (valid up to 2100).  
3. **Memory**: 32KB of battery-backed SRAM (retains data without power).  
4. **Interface**: Parallel interface compatible with standard SRAM.  
5. **Power Supply**: Operates from 3V to 5.5V; includes an embedded lithium energy source for data retention.  
6. **Data Retention**: Minimum 10 years in the absence of power.  
7. **Clock Accuracy**: ±2 minutes per month at 25°C.  
8. **Package**: 28-pin DIP or 32-pin PowerCap module.  

For exact details, refer to the official datasheet from Maxim Integrated.

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