BQ3285LFSS-A1TRG4

Product Overview

Category

The BQ3285LFSS-A1TRG4 belongs to the category of real-time clock (RTC) integrated circuits.

Use

This product is primarily used for timekeeping and calendar functions in various electronic devices.

Characteristics

• Low power consumption
• High accuracy
• Small form factor
• Wide operating temperature range

Package

The BQ3285LFSS-A1TRG4 is available in a small surface-mount package, making it suitable for compact electronic devices.

Essence

The essence of this product lies in its ability to accurately keep track of time and date, providing reliable timekeeping functionality to electronic devices.

Packaging/Quantity

The BQ3285LFSS-A1TRG4 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Timekeeping accuracy: ±2 minutes per month
• Battery backup voltage: 2.0V to 5.5V
• I2C bus interface

Detailed Pin Configuration

The BQ3285LFSS-A1TRG4 has the following pin configuration:

1. VCC - Power supply input
2. GND - Ground
3. SDA - Serial data line for I2C communication
4. SCL - Serial clock line for I2C communication
5. X1 - Crystal oscillator input
6. X2 - Crystal oscillator output
7. VBAT - Battery backup input
8. RST - Reset input

Functional Features

• Real-time clock with calendar functions
• Automatic leap year compensation
• Alarm function with programmable interrupt
• Battery backup for timekeeping during power loss
• Power-fail detection and switch circuitry

Advantages and Disadvantages

Advantages

• High accuracy timekeeping
• Low power consumption
• Compact size
• Wide operating temperature range

Disadvantages

• Limited memory capacity for additional data storage
• Requires an external crystal oscillator for operation

Working Principles

The BQ3285LFSS-A1TRG4 utilizes a combination of an internal oscillator and an external crystal oscillator to accurately measure time. It maintains the timekeeping function even during power loss by utilizing a battery backup.

Detailed Application Field Plans

The BQ3285LFSS-A1TRG4 is widely used in various electronic devices that require accurate timekeeping, such as:

1. Smartwatches
2. Medical devices
3. Industrial automation systems
4. Automotive applications
5. Consumer electronics

Detailed and Complete Alternative Models

1. DS3231 - Real-time clock module with I2C interface
2. PCF8563 - CMOS real-time clock/calendar with I2C bus interface
3. MCP7940N - Real-time clock/calendar with I2C/SPI interface
4. RV-8803-C7 - Ultra-low power real-time clock module with I2C interface

These alternative models offer similar functionality and can be considered as alternatives to the BQ3285LFSS-A1TRG4.

In conclusion, the BQ3285LFSS-A1TRG4 is a reliable real-time clock integrated circuit that provides accurate timekeeping and calendar functions. Its low power consumption, compact size, and wide operating temperature range make it suitable for various electronic devices across different industries.