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BQ4845S-A4G4 from TI,Texas Instruments

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BQ4845S-A4G4

Manufacturer: TI

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning 28-SOIC 0 to 70

Partnumber Manufacturer Quantity Availability
BQ4845S-A4G4,BQ4845SA4G4 TI 29 In Stock

Description and Introduction

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning 28-SOIC 0 to 70 The part BQ4845S-A4G4 is manufactured by Texas Instruments (TI). It is a real-time clock (RTC) with an integrated 4K x 8 NV SRAM, designed for applications requiring timekeeping and non-volatile memory. Key specifications include:

- **Supply Voltage:** 3.0V to 5.5V  
- **Timekeeping Current:** 3µA (typical at 3V)  
- **SRAM Retention Voltage:** 1.0V (minimum)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Clock Accuracy:** ±1 minute per month (typical at 25°C)  
- **Interface:** Parallel  
- **Package:** 28-pin SOIC  

The device includes automatic power-fail detection and switchover to backup supply. It also features a programmable watchdog timer and square-wave output.  

For detailed specifications, refer to the official TI datasheet.

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