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DS1556W-120 from DALLAS,MAXIM - Dallas Semiconductor

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15.625ms

DS1556W-120

Manufacturer: DALLAS

1M, Nonvolatile, Y2K-Compliant Timekeeping RAM

Partnumber Manufacturer Quantity Availability
DS1556W-120,DS1556W120 DALLAS 14 In Stock

Description and Introduction

1M, Nonvolatile, Y2K-Compliant Timekeeping RAM The DS1556W-120 is a real-time clock (RTC) module manufactured by DALLAS (now Maxim Integrated). Here are its key specifications:

1. **Function**: Provides real-time clock/calendar functionality with battery backup.
2. **Timekeeping Accuracy**: Maintains timekeeping with ±2 minutes per month accuracy at 25°C.
3. **Battery Backup**: Integrated lithium energy source for continuous operation.
4. **Operating Voltage**: 4.5V to 5.5V (primary supply).
5. **Temperature Range**: Commercial (0°C to +70°C).
6. **Interface**: Parallel interface for communication with microcontrollers.
7. **Memory**: Includes 114 bytes of non-volatile RAM for data storage.
8. **Package**: 24-pin DIP (Dual In-line Package).
9. **Clock Features**: Tracks seconds, minutes, hours, day, date, month, and year with leap-year compensation.
10. **End-of-Life Flag**: Indicates when the battery is nearing depletion.

For detailed electrical characteristics or application notes, refer to the official datasheet from Maxim Integrated.

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