BQ4285S-SB2G4 Product Details

Product Specifications

The BQ4285S-SB2G4 is a versatile Real-Time Clock (RTC) module that integrates a full-featured clock and calendar, along with a battery-backed SRAM for robust data retention capabilities. Its specifications are designed to meet the needs of a wide range of applications, ensuring accurate timekeeping and data integrity. Key features include:

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

• Power Supply Voltage: Designed for a 3V to 5.5V supply voltage range, accommodating a variety of power requirements.

• Temperature Range: Operates effectively within a temperature range of -40°C to +85°C.

• Memory: Features integrated battery-backed SRAM, preserving data during power loss.

• Interface: Includes a straightforward parallel interface for seamless microprocessor communication.

• Package Type: Comes in a 24-pin SOIC package, facilitating easy integration into system designs.

• Additional Features: Equipped with automatic power-fail detection, battery switch-over, programmable alarms, and a watchdog timer for enhanced functionality and reliability.

Product Introduction

The BQ4285S-SB2G4 RTC module is engineered to provide precise timekeeping solutions, complemented by data protection features that are essential in modern electronic systems. Its integrated SRAM, backed by a battery, ensures that data is not lost during power outages, making it invaluable for critical data logging and time-sensitive operations. Programmable alarms and the inclusion of a watchdog timer allow for versatile system management and reliability, marking the BQ4285S-SB2G4 as a comprehensive choice for managing time and safeguarding data across various applications.

Application Scope

The BQ4285S-SB2G4 is ideally suited for a multitude of sectors:

• Computing: Integral in servers, desktops, and networking hardware for ensuring system time accuracy and maintaining configuration data.

• Industrial Automation: Perfect for control systems and monitoring devices that require consistent operation and data integrity, even in harsh conditions.

• Telecommunications: Utilized in communication systems for precise time-stamping and maintaining operational logs.

• Medical Equipment: Essential in medical monitoring and diagnostic systems where accurate timing and data retention are critical.

• Automotive Electronics: Applicable in vehicle navigation, telematics, and event recording systems needing precise timekeeping and data storage.

Frequently Asked Questions

Q: How does the BQ4285S-SB2G4 handle power interruptions?

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

Q: What purpose do the programmable alarms serve?

A: The programmable alarms can be configured to trigger specific actions or reminders at predetermined times, aiding in system management and operational efficiency.

Q: Is it possible to disable the watchdog timer in the BQ4285S-SB2G4?

A: Yes, the watchdog timer can be configured according to the needs of the application, including the option to disable it, thus providing flexibility in system design.