BQ4802LYDWRG4 Product Details

Product Specifications

The BQ4802LYDWRG4 is a high-precision Real-Time Clock (RTC) integrated circuit that provides comprehensive timekeeping functionality along with data preservation capabilities, tailored for applications requiring both accuracy and reliability. It embodies an array of features designed to ensure optimal performance across various operating conditions. Here are its primary specifications:

• Timekeeping Accuracy: Features a high-precision crystal oscillator to ensure accurate tracking of time and date.

• Power Supply Voltage: Designed to operate over a 2.7V to 5.5V supply voltage range, making it adaptable to both low-power and standard 5V applications.

• Temperature Range: Capable of reliable operation in a broad temperature range from -40°C to +85°C, accommodating diverse environmental conditions.

• Memory Backup: Incorporates integrated battery-backed SRAM, providing critical data retention during power interruptions.

• Interface: Utilizes an I²C interface, facilitating easy communication with a wide range of microcontrollers and processors.

• Package Type: Delivered in a SOIC package, optimizing it for space-constrained applications while ensuring easy integration.

• Additional Features: Equipped with features such as automatic power-fail detection, battery switch-over, and a programmable alarm function to enhance system management and reliability.

Product Introduction

Engineered to meet the stringent demands of sophisticated electronic systems, the BQ4802LYDWRG4 RTC stands out for its ability to deliver precise timekeeping along with the crucial capability of data preservation through its battery-backed SRAM. This dual functionality makes it indispensable for applications where data integrity during power outages is paramount, including critical data logging and time-sensitive processes. Additionally, its energy efficiency, programmable alarm, and broad operating temperature range make it a versatile choice for a wide array of applications across computing, industrial automation, telecommunications, medical devices, and automotive systems.

Application Scope

The BQ4802LYDWRG4 is well-suited for a multitude of sectors, including:

• Consumer Electronics: Ideal for wearables, smart home devices, and personal electronics that demand precise timekeeping.

• Industrial Automation: Perfect for control systems, data loggers, and monitoring equipment in environments requiring reliable operation and data integrity.

• Automotive Systems: Suitable for vehicle electronics, navigation systems, and event logging, where accurate time stamping is critical.

• Telecommunications Equipment: Essential for maintaining accurate timekeeping in routers, switches, and network infrastructure for data logging and integrity.

• Medical Devices: Crucial in patient monitoring systems and medical recording devices, where precise time tracking is vital for data analysis and patient care.

Frequently Asked Questions

Q: How does the BQ4802LYDWRG4 protect data during power failures?

A: It seamlessly transitions to battery backup, maintaining the clock's operation and preserving the contents of the integrated SRAM, thus ensuring uninterrupted functionality and data preservation.

Q: Why is the BQ4802LYDWRG4 considered energy-efficient?

A: Its design focuses on low power consumption, making it suitable for battery-operated devices and applications where power efficiency is a priority, thereby extending device operational life.

Q: Can the programmable alarm be customized for specific operations?

A: Yes, the programmable alarm function can be set to trigger specific events or reminders at predetermined times, enhancing system management and operational efficiency.