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DS1643P-100 from MAX,MAXIM - Dallas Semiconductor

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DS1643P-100

Manufacturer: MAX

Nonvolatile Timekeeping RAMs

Partnumber Manufacturer Quantity Availability
DS1643P-100,DS1643P100 MAX 25 In Stock

Description and Introduction

Nonvolatile Timekeeping RAMs The DS1643P-100 is a nonvolatile timekeeping RAM manufactured by Maxim Integrated (formerly Dallas Semiconductor). Here are its key specifications:

- **Memory Size**: 8KB (8,192 bytes) of NV SRAM
- **Timekeeping Function**: Integrated real-time clock (RTC)
- **Power Supply**: 5V ±10%
- **Operating Temperature Range**: 0°C to +70°C
- **Access Time**: 100ns (for the -100 speed grade)
- **Battery Backup**: Built-in lithium energy source for data retention (minimum 10 years)
- **Interface**: Parallel (byte-wide)
- **Package**: 28-pin DIP (Dual In-line Package)
- **Pin Count**: 28
- **Data Retention**: Nonvolatile with automatic switch to battery backup on power loss
- **Clock Accuracy**: ±2 minutes per month at 25°C

The DS1643P-100 combines SRAM with a real-time clock and nonvolatile storage, eliminating the need for external batteries in most applications.

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