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BQ4845P-A4 from BENCHMAR

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BQ4845P-A4

Manufacturer: BENCHMAR

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

Partnumber Manufacturer Quantity Availability
BQ4845P-A4,BQ4845PA4 BENCHMAR 648 In Stock

Description and Introduction

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning The **BQ4845P-A4** is a highly reliable real-time clock (RTC) and calendar IC with an integrated lithium energy source, designed for applications requiring precise timekeeping and non-volatile memory storage. This component ensures continuous operation even during power interruptions, making it ideal for critical systems such as industrial controllers, medical devices, and embedded computing.  

Featuring a low-power CMOS design, the BQ4845P-A4 provides accurate time and date functions with automatic leap-year compensation and daylight saving adjustments. Its built-in 32.768 kHz crystal oscillator ensures minimal drift over extended periods. Additionally, the device includes 4KB of non-volatile SRAM, allowing secure data retention without external backup power.  

The BQ4845P-A4 operates over a wide voltage range and includes programmable alarms, watchdog timers, and power-fail detection, enhancing system reliability. Its compact form factor and industry-standard pinout simplify integration into existing designs.  

Engineers favor this component for its robustness, low power consumption, and ease of implementation in battery-backed or power-sensitive applications. Whether used in data loggers, telecommunications equipment, or automation systems, the BQ4845P-A4 delivers dependable performance in maintaining accurate time and preserving critical data.

Partnumber Manufacturer Quantity Availability
BQ4845P-A4,BQ4845PA4 BENCHMARQ 648 In Stock

Description and Introduction

RTC IC W NVSRAM Control, Watchdog Timer, uP Reset, Interrupts and Battery Low Warning The part BQ4845P-A4 is manufactured by BENCHMARQ. It is a real-time clock (RTC) with a built-in crystal, SRAM, and power-fail circuitry. Key specifications include:

- **Supply Voltage:** 3V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Timekeeping Current:** 1µA (typical)  
- **SRAM Size:** 4KB  
- **Interface:** Parallel  
- **Package:** 24-pin DIP  
- **Features:** Automatic leap-year compensation, power-fail detection, and battery backup support  

This RTC is designed for applications requiring accurate timekeeping and non-volatile memory storage.

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