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DS12C887A from DALLAS,MAXIM - Dallas Semiconductor

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DS12C887A

Manufacturer: DALLAS

Real-Time Clock

Partnumber Manufacturer Quantity Availability
DS12C887A DALLAS 33 In Stock

Description and Introduction

Real-Time Clock The DS12C887A is a real-time clock (RTC) manufactured by Dallas Semiconductor (now part of Maxim Integrated). Below are its key specifications:

1. **Function**: Combines a real-time clock, calendar, alarm, and 114 bytes of non-volatile RAM.  
2. **Timekeeping**: Tracks seconds, minutes, hours, day, date, month, and year with leap-year compensation (up to 2100).  
3. **Interface**: Parallel interface compatible with most microcontrollers.  
4. **Power Supply**:  
   - Operates from **4.5V to 5.5V** (standard range).  
   - Includes an internal lithium battery for backup (10+ years of data retention).  
5. **Clock Accuracy**: ±1 minute per month at 25°C.  
6. **Temperature Range**:  
   - Commercial: **0°C to +70°C**.  
   - Industrial: **-40°C to +85°C**.  
7. **Package**: 24-pin DIP (Dual In-line Package).  
8. **Additional Features**:  
   - Programmable square-wave output.  
   - Three interrupts (alarm, periodic, update-ended).  
   - Binary or BCD time representation.  

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

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