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DS1554-70+ from DALLAS,MAXIM - Dallas Semiconductor

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DS1554-70+

Manufacturer: DALLAS

256k Nonvolatile, Y2K-Compliant Timekeeping RAM

Partnumber Manufacturer Quantity Availability
DS1554-70+,DS155470 DALLAS 400 In Stock

Description and Introduction

256k Nonvolatile, Y2K-Compliant Timekeeping RAM The DS1554-70+ is a real-time clock (RTC) module manufactured by DALLAS (now part of Maxim Integrated). Here are its key specifications:

1. **Type**: Non-volatile real-time clock (RTC) 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 (typically uses a lithium battery).
5. **Clock Frequency**: 32.768 kHz.
6. **Timekeeping Current**: 500nA (typical) in battery backup mode.
7. **Interface**: Parallel (8-bit multiplexed address/data bus).
8. **Memory**: 70 bytes of general-purpose NV SRAM.
9. **Operating Temperature Range**: 0°C to +70°C.
10. **Package**: 28-pin DIP (Dual In-line Package).
11. **Features**: Automatic power-fail detection and switchover, leap-year compensation, 24/12-hour format.

This information is based solely on the manufacturer's specifications.

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