BQ4845YS-A4N Product Details

Product Specifications of BQ4845YS-A4N

The BQ4845YS-A4N from Texas Instruments is a comprehensive Real-Time Clock (RTC) module that brings together precise timekeeping with integrated memory backup capabilities. Designed to cater to a wide variety of applications, this RTC module ensures accurate time and date management while maintaining data integrity during power losses. Here's a breakdown of its key specifications:

• Timekeeping Accuracy: Built around a high-precision crystal oscillator, the BQ4845YS-A4N maintains accurate time and date tracking, vital for applications requiring strict timing precision.

• Power Supply Voltage: This module is designed to operate over a supply voltage range of 4.5V to 5.5V, making it compatible with standard 5V systems.

• Temperature Range: Engineered to perform reliably within a temperature range of -40°C to +85°C, it's suitable for a diverse array of operational environments.

• Memory Backup: Features integrated battery-backed SRAM, critical for retaining essential data during power interruptions, thus ensuring continued data integrity.

• Interface: Equipped with a parallel interface, allowing for straightforward integration with microcontrollers and processors, simplifying system communication.

• Package Type: Offered in a 28-pin SOIC package, providing a compact solution that's conducive to space-constrained applications.

• Additional Features: Includes functionalities such as automatic power-fail detection, battery switch-over, programmable alarms, and a watchdog timer, which enhance system management and reliability.

Product Introduction of BQ4845YS-A4N

The BQ4845YS-A4N RTC module is engineered for systems that demand not just reliable timekeeping but also need to preserve data integrity in the event of power outages. Its low power consumption and wide operating voltage range make it an excellent choice for battery-powered devices, as well as for applications in industrial automation, telecommunications, automotive systems, and consumer electronics. The device’s additional features, such as the programmable alarm and watchdog timer, offer further utility, making it a versatile component for complex electronic systems.

Application Scope of BQ4845YS-A4N

This RTC module is ideally suited for a range of sectors, thanks to its robust features:

• Consumer Electronics: Perfect for wearables, smart appliances, and personal electronics that require precise timekeeping.

• Industrial Automation: Ideal for control systems, data loggers, and monitoring equipment where timing accuracy and operational reliability are critical.

• Automotive Systems: Suitable for in-vehicle electronics, like navigation systems and event data recorders, where accurate timekeeping is essential.

• Telecommunications: Crucial for network devices such as routers and switches that rely on accurate timekeeping for data logging and system integrity.

• Medical Devices: Essential for patient monitoring systems and medical recorders, where precise timing is crucial for data analysis and patient care.

Frequently Asked Questions of BQ4845YS-A4N

Q: How does the BQ4845YS-A4N ensure data integrity during power outages?

A: It automatically switches to battery backup, maintaining the clock's operation and preserving the integrated SRAM's contents, thus ensuring uninterrupted functionality and data protection.

Q: What advantages does the BQ4845YS-A4N offer for battery-operated devices?

A: Its energy-efficient design and effective battery backup capability make it highly suitable for devices dependent on battery power, promoting extended operational life and reliability.

Q: Can the programmable alarm be tailored for specific needs?

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