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DS1747-70+ from DALLAS,MAXIM - Dallas Semiconductor

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15.625ms

DS1747-70+

Manufacturer: DALLAS

Y2K-Compliant, Nonvolatile Timekeeping RAMs

Partnumber Manufacturer Quantity Availability
DS1747-70+,DS174770 DALLAS 200 In Stock

Description and Introduction

Y2K-Compliant, Nonvolatile Timekeeping RAMs The DS1747-70+ is a nonvolatile timekeeping RAM manufactured by DALLAS (now part of Maxim Integrated). Here are its key specifications:

- **Type**: Nonvolatile SRAM with real-time clock (RTC)
- **Memory Size**: 32KB (32,768 x 8)
- **Interface**: Parallel
- **Supply Voltage**: 4.5V to 5.5V
- **Clock Accuracy**: ±2 minutes per month at 25°C
- **Operating Temperature Range**: 0°C to +70°C
- **Battery Backup**: Integrated lithium energy source
- **Data Retention**: Minimum 10 years in the absence of power
- **Package**: 28-pin DIP (Dual In-line Package)
- **Features**: Automatic power-fail detection and switchover, century byte register

This device combines SRAM with a real-time clock/calendar and battery backup in a single package.

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