AT24C04BU3-UU-T

Product Overview

Category

AT24C04BU3-UU-T belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

It is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Electrically erasable: The stored data can be erased and reprogrammed electronically.
• Non-volatile: The data remains intact even when power is removed.
• High storage capacity: AT24C04BU3-UU-T has a storage capacity of 4 kilobits (512 bytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• I2C interface: It communicates using the Inter-Integrated Circuit (I2C) protocol.
• Wide temperature range: It can operate reliably in a wide temperature range, from -40°C to +85°C.

Package

AT24C04BU3-UU-T is available in an 8-pin ultra-thin small outline package (USOP).

Essence

The essence of AT24C04BU3-UU-T lies in its ability to store and retrieve data reliably in a compact and low-power package.

Packaging/Quantity

AT24C04BU3-UU-T is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Capacity: 4 kilobits (512 bytes)
• Supply Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C
• Write Cycle Time: 5 ms (maximum)
• Data Retention: 100 years (minimum)

Detailed Pin Configuration

AT24C04BU3-UU-T has the following pin configuration:

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

Functional Features

• Random access: Allows reading and writing of data at any memory location.
• Byte-wise operations: Supports individual byte read and write operations.
• Hardware write protection: The WP pin can be used to protect the memory from accidental writes.
• Software write protection: Can be enabled through specific commands to prevent unauthorized modifications.
• Page write mode: Enables writing multiple bytes in a single operation, improving efficiency.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable devices.
• High data retention ensures long-term reliability.
• Wide temperature range allows usage in various environments.
• I2C interface simplifies integration with other devices.
• Hardware and software write protection options enhance data security.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Slower write cycle time compared to some alternatives.
• Vulnerable to electromagnetic interference (EMI) due to its small package size.

Working Principles

AT24C04BU3-UU-T utilizes electrically erasable floating-gate transistors to store data. When writing, an electrical charge is applied to the floating gate, altering its threshold voltage. This change determines whether the transistor represents a logical 0 or 1. Reading involves sensing the threshold voltage of each transistor to retrieve the stored data.

Detailed Application Field Plans

AT24C04BU3-UU-T finds applications in various fields, including: 1. Embedded systems: Used for storing configuration data, firmware updates, and calibration values. 2. Automotive electronics: Stores critical data like mileage, vehicle settings, and error codes. 3. Industrial automation: Used for storing parameters, device configurations, and production data. 4. Consumer electronics: Enables storage of user preferences, settings, and personal data in devices like smart TVs, set-top boxes, and gaming consoles.

Detailed and Complete Alternative Models

Some alternative models to AT24C04BU3-UU-T are: 1. AT24C01A: 1 kilobit (128 bytes) capacity. 2. AT24C02B: 2 kilobits (256 bytes) capacity. 3. AT24C08C: 8 kilobits (1024 bytes) capacity. 4. AT24C16D: 16 kilobits (2048 bytes) capacity.

These alternatives provide different storage capacities to suit specific application requirements.

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