BQ4285S-SB2TR Product Details

Product Specifications

The BQ4285S-SB2TR is an advanced Real-Time Clock (RTC) integrated circuit that offers comprehensive timekeeping features with the added convenience of a battery-backed SRAM for data retention. It's designed to address the needs of various applications requiring accurate time tracking and the safeguarding of critical information during power outages. Key features and specifications of the BQ4285S-SB2TR include:

• Timekeeping Accuracy: Utilizes a high-precision crystal oscillator to maintain accurate time and date.

• Power Supply Voltage: Operates on a 3.0V to 5.5V supply voltage, making it versatile for use in both low-power and standard power applications.

• Temperature Range: Capable of functioning reliably across a temperature range of -40°C to +85°C, ensuring stable performance in diverse operating conditions.

• Memory Backup: Features integrated battery-backed SRAM, providing essential data retention capabilities during power losses.

• Interface: Equipped with a parallel interface for straightforward communication with microprocessors.

• Package Type: Available in an SB2 (DIP-24) package, facilitating ease of integration into a wide variety of system designs.

• Additional Features: Includes automatic power-fail detection, battery switch-over, programmable alarms, and a watchdog timer, enhancing both system management and reliability.

Product Introduction

Engineered for precision and reliability, the BQ4285S-SB2TR RTC integrates key timekeeping and data preservation functionalities, making it indispensable for applications where time accuracy and data integrity are critical. Its energy-efficient design and broad operating voltage range make it suitable for battery-operated devices, as well as more demanding environments found in industrial, automotive, and telecommunications sectors. The device's programmable alarm and watchdog timer offer additional flexibility, making it a comprehensive solution for complex electronic systems.

Application Scope

This RTC module is ideally suited for a broad spectrum of applications:

• Consumer Electronics: Perfect for smart devices, personal electronics, and home automation systems requiring precise timing.

• Industrial Automation: Ideal for use in control systems, data loggers, and monitoring equipment in environments that demand consistent operation and data integrity.

• Automotive Systems: Suitable for in-vehicle electronics, such as navigation systems and event data recorders, where accurate time stamping is crucial.

• Telecommunications: Essential for network infrastructure, including routers and switches, needing accurate timekeeping for data logging and integrity.

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

Frequently Asked Questions

Q: How does the BQ4285S-SB2TR ensure data integrity during power outages?

A: It seamlessly transitions to battery backup mode, maintaining clock functionality and preserving the contents of the integrated SRAM, thereby ensuring uninterrupted operation and data protection.

Q: What makes the BQ4285S-SB2TR suitable for battery-operated devices?

A: Its low power consumption and effective battery backup capability make it highly suitable for devices that rely on battery power, promoting extended operational life and reliability.

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

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