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DS1687+3 from DALLAS,MAXIM - Dallas Semiconductor

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DS1687+3

Manufacturer: DALLAS

3V/5V Real-Time Clocks

Partnumber Manufacturer Quantity Availability
DS1687+3,DS16873 DALLAS 36 In Stock

Description and Introduction

3V/5V Real-Time Clocks The DS1687+3 is a real-time clock (RTC) and nonvolatile RAM (NV RAM) device manufactured by Dallas Semiconductor (now part of Maxim Integrated). Here are its key specifications:

1. **Integrated Functions**: Combines a real-time clock, calendar, NV RAM, and a microprocessor supervisor.  
2. **Memory**: 114 bytes of general-purpose NV RAM.  
3. **Clock Accuracy**: ±2 minutes per month at 25°C.  
4. **Timekeeping**: Tracks seconds, minutes, hours, day, date, month, and year with leap-year compensation (up to 2100).  
5. **Power Management**:  
   - Operates from a 3V lithium battery in backup mode.  
   - Automatic power-fail detection and switchover.  
6. **Microprocessor Supervisor**:  
   - Includes power-fail reset and early power-fail warning.  
   - Watchdog timer function.  
7. **Interface**: Parallel (8-bit) interface compatible with most microprocessors.  
8. **Package**: 24-pin DIP (Dual Inline Package).  
9. **Operating Temperature Range**: 0°C to +70°C.  

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

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