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BQ4845S-A4 from TI/Benchmarp,Texas Instruments

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BQ4845S-A4

Manufacturer: TI/Benchmarp

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning

Partnumber Manufacturer Quantity Availability
BQ4845S-A4,BQ4845SA4 TI/Benchmarp 2 In Stock

Description and Introduction

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning The part **BQ4845S-A4** is manufactured by **Texas Instruments (TI)** under the **Benchmarq** brand.  

### **Key Specifications:**  
- **Type:** Real-Time Clock (RTC) with battery backup  
- **Package:** 24-pin SOIC (Small Outline Integrated Circuit)  
- **Voltage Range:** 2.7V to 5.5V  
- **Timekeeping Accuracy:** ±1 minute per month (typical)  
- **Battery Backup:** Integrated lithium energy source (non-replaceable)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Features:**  
  - Automatic leap-year compensation  
  - 12/24-hour time format  
  - Power-fail detection  
  - 114 bytes of general-purpose NV RAM  

### **Applications:**  
- Embedded systems  
- Data loggers  
- Industrial controllers  
- Medical devices  

This information is based on Benchmarq/TI datasheets. For detailed specifications, refer to the official documentation.

Partnumber Manufacturer Quantity Availability
BQ4845S-A4,BQ4845SA4 TI 59 In Stock

Description and Introduction

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning The part **BQ4845S-A4** is manufactured by **Texas Instruments (TI)**.  

### **Key Specifications:**  
- **Type:** Real-Time Clock (RTC) with integrated crystal  
- **Package:** 8-pin SOIC (150mil)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Timekeeping Current:** 0.7µA (typical at 3V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Integrated Crystal:** Yes (eliminates need for external crystal)  
- **Battery Backup Support:** Yes (for continuous timekeeping)  
- **I/O Interface:** Serial (I²C-compatible)  
- **Additional Features:**  
  - Automatic leap-year compensation  
  - Power-fail detection  
  - Programmable alarm and watchdog timer  

This part is designed for low-power, battery-backed timekeeping applications.  

Would you like any further details?

Partnumber Manufacturer Quantity Availability
BQ4845S-A4,BQ4845SA4 TI/BB 134 In Stock

Description and Introduction

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning The part BQ4845S-A4 is manufactured by Texas Instruments (TI) and is part of their Battery Management product line. It is a real-time clock (RTC) with an integrated crystal, SRAM, and power-fail control circuit. Key specifications include:

- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: -40°C to +85°C  
- **Timekeeping Current**: 500nA (typical)  
- **Integrated SRAM**: 4KB  
- **Clock Accuracy**: ±2 minutes per year (typical)  
- **Package**: 24-pin SOIC  

The device is designed for battery-backed applications requiring accurate timekeeping and non-volatile memory.

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