AT24C02D-SSHM-B

Product Overview

Category

AT24C02D-SSHM-B belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for storing and retrieving data in electronic devices. It provides non-volatile memory storage, allowing data to be retained even when power is removed.

Characteristics

• Electrically erasable: The AT24C02D-SSHM-B can be erased and reprogrammed electronically, making it convenient for data updates.
• High storage capacity: This chip has a storage capacity of 2 kilobits (256 bytes), providing ample space for data storage.
• Low power consumption: The AT24C02D-SSHM-B operates on low power, making it suitable for battery-powered devices.
• I2C interface: It utilizes the I2C (Inter-Integrated Circuit) protocol for communication with other devices.

Package

The AT24C02D-SSHM-B comes in an industry-standard 8-pin Small Outline Integrated Circuit (SOIC) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact form factor.

Packaging/Quantity

The AT24C02D-SSHM-B is typically packaged in reels or tubes, with each reel containing 2500 units.

Specifications

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

Detailed Pin Configuration

The AT24C02D-SSHM-B has the following pin configuration:

1. A0: Chip address input pin
2. A1: Chip address input pin
3. A2: Chip address input pin
4. GND: Ground connection
5. SDA: Serial data input/output pin
6. SCL: Serial clock input pin
7. WP: Write protect pin
8. VCC: Supply voltage

Functional Features

• Random access: The AT24C02D-SSHM-B allows random access to any memory location, enabling efficient data retrieval.
• Byte-level read/write: Data can be read from or written to the chip at the byte level, providing flexibility in data manipulation.
• Hardware write protection: The WP pin can be used to protect the stored data from accidental overwriting.
• Sequential read mode: This chip supports sequential read operations, allowing for faster data retrieval.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for various electronic devices.
• High storage capacity provides ample space for data storage needs.
• Electrically erasable feature allows for easy data updates.
• Random access and sequential read modes enhance data retrieval efficiency.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write speeds compared to some other memory types.

Working Principles

The AT24C02D-SSHM-B utilizes a floating-gate transistor structure to store data. When data is written, an electric charge is trapped in the floating gate, representing a binary value. To erase the data, a higher voltage is applied to remove the trapped charge. The stored data can be read by sensing the presence or absence of charge in the floating gate.

Detailed Application Field Plans

The AT24C02D-SSHM-B finds applications in various fields, including:

1. Consumer electronics: Used in smart TVs, set-top boxes, and audio/video equipment for storing user preferences and settings.
2. Automotive: Employed in electronic control units (ECUs) for storing calibration data and vehicle-specific configurations.
3. Industrial automation: Utilized in programmable logic controllers (PLCs) for storing program code and configuration parameters.
4. Medical devices: Used in equipment such as patient monitors and infusion pumps for storing patient data and device settings.

Detailed and Complete Alternative Models

1. AT24C01A-SSHM-T: 1 kilobit EEPROM chip with similar characteristics and package.
2. AT24C04D-SSHM-B: 4 kilobit EEPROM chip with higher storage capacity.
3. AT24C16D-SSHM-B: 16 kilobit EEPROM chip with increased memory size.

These alternative models offer different storage capacities to cater to specific application requirements.

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