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DS1685-3 from DALLAS,MAXIM - Dallas Semiconductor

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15.625ms

DS1685-3

Manufacturer: DALLAS

3V/5V Real-Time Clocks

Partnumber Manufacturer Quantity Availability
DS1685-3,DS16853 DALLAS 18 In Stock

Description and Introduction

3V/5V Real-Time Clocks The DS1685-3 is a real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and battery backup. It is manufactured by DALLAS (now part of Maxim Integrated). Key specifications include:

- **Timekeeping Accuracy**: ±2 minutes per month at 25°C (with temperature compensation).  
- **Operating Voltage**: 2.97V to 5.5V.  
- **Battery Backup**: Supports external battery or supercapacitor for power failover.  
- **Temperature Range**:  
  - Commercial: 0°C to +70°C  
  - Industrial: -40°C to +85°C  
- **Interface**: Serial I²C (2-wire) communication.  
- **Integrated Oscillator**: Includes a TCXO for improved accuracy.  
- **Clock Features**: Tracks seconds, minutes, hours, day, date, month, and year with leap-year compensation.  
- **Package**: 20-pin SOIC (DS1685-3 variant).  

For exact electrical characteristics and timing diagrams, refer to the official datasheet.

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