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DS1643 from DALLAS,MAXIM - Dallas Semiconductor

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15.625ms

DS1643

Manufacturer: DALLAS

Nonvolatile Timekeeping RAM

Partnumber Manufacturer Quantity Availability
DS1643 DALLAS 2000 In Stock

Description and Introduction

Nonvolatile Timekeeping RAM The DS1643 is a nonvolatile timekeeping RAM manufactured by Dallas Semiconductor (now Maxim Integrated). Here are its key specifications:

- **Type**: Nonvolatile (NV) SRAM with real-time clock (RTC)
- **Memory Capacity**: 8KB (8,192 bytes) of NV SRAM
- **Real-Time Clock**: Integrated RTC with battery backup
- **Battery Backup**: Built-in lithium energy source for data retention
- **Data Retention**: Minimum 10 years without power
- **Interface**: Parallel (8-bit data bus)
- **Operating Voltage**: 4.5V to 5.5V
- **Clock Accuracy**: ±2 minutes per month at 25°C
- **Clock Format**: BCD (Binary-Coded Decimal) for hours, minutes, seconds, date, month, year, and day of the week
- **Temperature Range**: Commercial (0°C to +70°C)
- **Package**: 28-pin DIP (Dual In-line Package)

This information is strictly based on the manufacturer's datasheet.

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