BR24C21FJ-E2

Product Overview

Category

BR24C21FJ-E2 belongs to the category of electrically erasable and programmable read-only memory (EEPROM) chips.

Use

This chip is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, consumer electronics, and automotive applications.

Characteristics

• Electrically erasable and programmable memory
• Non-volatile storage
• Low power consumption
• High reliability and endurance
• Wide operating voltage range
• Small form factor

Package

BR24C21FJ-E2 is available in a compact SOP-8 package, which provides ease of integration into different circuit designs.

Essence

The essence of BR24C21FJ-E2 lies in its ability to store and retrieve data reliably in a non-volatile manner, even when power is removed from the device.

Packaging/Quantity

These chips are typically packaged in reels or tubes, with each reel or tube containing a specific quantity of BR24C21FJ-E2 chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory capacity: 2 kilobits (256 bytes)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write cycle endurance: 1 million cycles
• Data retention: 100 years

Detailed Pin Configuration

BR24C21FJ-E2 features an SOP-8 package with the following pin configuration:

1. VSS - Ground
2. SDA - Serial Data Input/Output
3. SCL - Serial Clock Input
4. WP - Write Protect
5. VCC - Power Supply
6. A0 - Chip Address Input
7. A1 - Chip Address Input
8. NC - No Connection

Functional Features

• Byte-wise random access for efficient data retrieval and modification
• Sequential read and write operations for simplified data handling
• Hardware write protection to prevent accidental data corruption
• Built-in error detection and correction mechanisms for enhanced reliability
• Low standby current consumption for power-sensitive applications

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss
• High endurance and long data retention period
• Wide operating voltage range allows compatibility with various systems
• Compact form factor enables easy integration into different designs
• Error detection and correction mechanisms enhance data reliability

Disadvantages

• Limited memory capacity compared to other storage technologies
• Relatively slower write speeds compared to volatile memory options
• Higher cost per bit compared to some alternative memory solutions

Working Principles

BR24C21FJ-E2 utilizes an electrically erasable and programmable memory technology. It stores data by trapping charges in a floating gate, which can be electrically modified to represent binary values. The stored data remains intact even when the power supply is disconnected.

The chip communicates with the host device using a serial interface, allowing for convenient data transfer and manipulation. Write protection features are implemented to prevent unauthorized modifications to the stored data.

Detailed Application Field Plans

BR24C21FJ-E2 finds applications in various fields, including:

1. Microcontrollers: Used for storing program code, configuration settings, and calibration data.
2. Consumer Electronics: Enables non-volatile storage of user preferences, device settings, and firmware updates.
3. Automotive: Utilized for storing critical data such as mileage, vehicle identification numbers (VIN), and diagnostic information.
4. Industrial Automation: Provides reliable storage for system parameters, sensor calibration data, and event logging.

Detailed and Complete Alternative Models

1. AT24C02: Similar EEPROM chip with 2 kilobits capacity, offered by Atmel Corporation.
2. CAT24C02: Electrically erasable memory chip with 2 kilobits capacity, manufactured by ON Semiconductor.
3. M24C02: EEPROM chip with 2 kilobits capacity, produced by STMicroelectronics.

These alternative models offer similar functionality and can be considered as substitutes for BR24C21FJ-E2 in various applications.

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