BQ3285ESSTR Product Details

Product Specifications

The BQ3285ESSTR is a high-performance Real-Time Clock (RTC) integrated circuit, designed to offer precise timekeeping along with a suite of additional functionalities to support a wide range of applications. This RTC is particularly noted for its integration of a battery-backed SRAM, ensuring data retention even in the absence of power. Key specifications include:

• Timekeeping Accuracy: Utilizes a high-precision crystal oscillator for meticulous tracking of time and date, crucial for applications where timing is critical.

• Power Supply Voltage: Capable of operating across a 2.7V to 5.5V supply voltage range, making it versatile for both low-power scenarios and standard applications.

• Temperature Range: Offers reliable performance within a temperature range of -40°C to +85°C, accommodating diverse operational environments.

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

• Interface: Equipped with an I²C-bus interface, enabling straightforward integration with various microcontrollers and processors.

• Package Type: Provided in an SSOP package, offering a compact solution that is ideal for space-constrained applications while facilitating ease of integration.

• Additional Features: Includes functionalities such as automatic power-fail detection, battery switch-over capability, and a programmable alarm function, enhancing both system management and reliability.

Product Introduction

The BQ3285ESSTR RTC module is engineered for those applications that demand not just precise timekeeping but also require the maintenance of data integrity during power failures. Its energy efficiency and wide operating voltage range make it an excellent choice for battery-powered devices, as well as more demanding settings found in industrial, automotive, and telecommunications applications. The device's inclusion of programmable alarm and watchdog timer features add significant flexibility, making it a comprehensive solution for complex electronic systems.

Application Scope

This RTC module finds its application across a variety of sectors due to its robust features:

• Consumer Electronics: Perfect for smart wearables, home automation systems, and personal electronic devices that require accurate timekeeping.

• Industrial Automation: Ideal for use in control systems, data loggers, and monitoring equipment where consistent operation and data preservation are critical.

• Automotive Systems: Suitable for in-vehicle electronics, such as navigation systems and event loggers, where precise timekeeping and data retention are essential.

• Telecommunications: Crucial for network infrastructure, including routers and switches, that rely on precise timekeeping for logging and maintaining operational integrity.

• Medical Devices: Essential for patient monitoring systems and medical recording devices, where accurate timing is critical for data analysis and patient care.

Frequently Asked Questions

Q: How does the BQ3285ESSTR ensure data integrity during power failures?

A: It automatically switches to battery backup mode, keeping the clock operational and securing the contents of the integrated SRAM, thus ensuring uninterrupted functionality and data protection.

Q: What makes the BQ3285ESSTR suitable for battery-operated devices?

A: Its low power consumption 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 customized for specific tasks?

A: Yes, the programmable alarm function allows for the setting of specific events or reminders at predetermined times, enhancing system management and operational efficiency.