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DS12R885-33 from DALLAS,MAXIM - Dallas Semiconductor

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DS12R885-33

Manufacturer: DALLAS

RTC with Constant-Voltage Trickle Charger

Partnumber Manufacturer Quantity Availability
DS12R885-33,DS12R88533 DALLAS 152 In Stock

Description and Introduction

RTC with Constant-Voltage Trickle Charger The DS12R885-33 is a real-time clock (RTC) manufactured by DALLAS (now Maxim Integrated). Here are its key specifications:

1. **Function**: Real-time clock/calendar with battery backup.  
2. **Timekeeping Accuracy**: ±2 minutes per month at 25°C.  
3. **Operating Voltage**: 4.5V to 5.5V.  
4. **Battery Backup Voltage**: 2V to 3.5V (supports lithium or NiMH batteries).  
5. **Clock Frequency**: 32.768 kHz.  
6. **Interface**: Parallel (8-bit multiplexed address/data bus).  
7. **Temperature Range**:  
   - Commercial: 0°C to +70°C.  
   - Industrial: -40°C to +85°C.  
8. **Features**:  
   - Counts seconds, minutes, hours, day, date, month, and year (with leap-year compensation).  
   - 114 bytes of non-volatile RAM for data storage.  
   - Programmable square-wave output.  
   - Power-fail detection and automatic switch to backup supply.  
9. **Package**: 24-pin DIP (Dual In-line Package).  

For exact details, refer to the official datasheet from Maxim Integrated (formerly DALLAS).

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