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BQ4802YDW from TI,TI,Texas Instruments

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BQ4802YDW

Manufacturer: TI,TI

Y2K-Compliant Parallel RTC with CPU Supervisor and External NVSRAM Control, 5V Vcc

Partnumber Manufacturer Quantity Availability
BQ4802YDW TI,TI 100 In Stock

Description and Introduction

Y2K-Compliant Parallel RTC with CPU Supervisor and External NVSRAM Control, 5V Vcc The part BQ4802YDW is manufactured by Texas Instruments (TI). Below are the factual specifications from Ic-phoenix technical data files:

1. **Manufacturer**: Texas Instruments (TI)  
2. **Part Number**: BQ4802YDW  
3. **Description**: Real-Time Clock (RTC) with Battery Backup  
4. **Package**: SOIC (DW)  
5. **Pin Count**: 28  
6. **Supply Voltage**: 3.0V to 5.5V  
7. **Battery Backup Voltage**: 2.0V to 3.5V  
8. **Timekeeping Accuracy**: ±1 minute per month (typical at 25°C)  
9. **Interface**: Parallel  
10. **Operating Temperature Range**: -40°C to +85°C  
11. **Features**:  
    - Integrated crystal oscillator  
    - Automatic power-fail detection  
    - Leap year compensation  
    - Programmable alarm and watchdog timer  

This information is based solely on the available specifications for the BQ4802YDW from TI. No additional guidance or suggestions are included.

Partnumber Manufacturer Quantity Availability
BQ4802YDW TI/Benchmarp 4 In Stock

Description and Introduction

Y2K-Compliant Parallel RTC with CPU Supervisor and External NVSRAM Control, 5V Vcc The part BQ4802YDW is manufactured by Texas Instruments (TI) under the Benchmarq brand. It is a 32k x 8 nonvolatile static RAM (NVSRAM) with a built-in lithium energy source. Key specifications include:

- **Memory Size:** 32k x 8 (256 Kbit)  
- **Interface:** Parallel  
- **Supply Voltage:** 4.5V to 5.5V  
- **Access Time:** 70 ns  
- **Data Retention:** Minimum 10 years  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** 28-pin SOIC (DW)  

The device integrates SRAM with nonvolatile backup, ensuring data retention during power loss. It is commonly used in applications requiring reliable nonvolatile memory, such as industrial systems and data logging.  

For further details, refer to the official TI/Benchmarq datasheet.

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