BQ3285P-SB2E3 Product Details

Product Specifications

The BQ3285P-SB2E3 is a cutting-edge Real-Time Clock (RTC) module that merges precise timekeeping with battery-backed SRAM, ensuring both accurate time tracking and data integrity. Designed for a broad array of applications, it offers the following specifications:

• Timekeeping Accuracy: Built around a high-precision crystal oscillator, ensuring reliable time and date measurement.

• Power Supply Voltage: Supports a supply voltage range of 4.5V to 5.5V, compatible with standard 5V systems.

• Temperature Range: Operates effectively across a wide temperature range of -40°C to +85°C, suitable for demanding environments.

• Memory: Integrates battery-backed SRAM for data preservation during power losses, safeguarding critical information.

• Interface: Comes with a parallel interface, facilitating straightforward microprocessor communications.

• Package Type: Provided in a 24-pin DIP package, simplifying integration into diverse system designs.

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

Product Introduction

The BQ3285P-SB2E3 RTC module stands out for its ability to maintain accurate timekeeping and ensure data protection through its integrated SRAM, which is supported by a battery backup. This combination is essential for applications where data loss during power failures is unacceptable, such as critical data logging and time-sensitive operations. Its additional functionalities, like programmable alarms and a watchdog timer, make it a versatile choice for a wide range of applications, from computing and industrial automation to telecommunications, medical devices, and automotive systems.

Application Scope

This RTC module is ideally suited for several key industries:

• Computing: Crucial for servers, PCs, and network devices, ensuring accurate system time and safeguarding configuration data.

• Industrial Automation: Perfect for control systems, monitoring devices, and data loggers that require reliable operation and data integrity.

• Telecommunications: Essential for maintaining accurate time-stamping and operational data in network infrastructure.

• Medical Devices: Important for time-sensitive medical monitoring and diagnostic equipment, ensuring data accuracy and reliability.

• Automotive Electronics: Applicable in navigation systems, telematics, and event recording systems that depend on precise timekeeping and data logging.

Frequently Asked Questions

Q: How does the BQ3285P-SB2E3 maintain data integrity during power outages?

A: It automatically switches to its battery backup to continue clock operations and preserve the contents of the SRAM, ensuring uninterrupted functionality and data protection.

Q: What are the programmable alarms used for?

A: Programmable alarms can be set to execute specific tasks or serve as reminders at predetermined times, supporting efficient system management and scheduling.

Q: Can the watchdog timer be modified in the BQ3285P-SB2E3?

A: Yes, the watchdog timer is configurable to suit specific needs, including the option to disable it, offering flexibility in system design.