24AA256-I/SN

Product Overview

Category

The 24AA256-I/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• Electrically erasable: The data can be erased and reprogrammed electronically.
• High capacity: The 24AA256-I/SN has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates at low voltage and consumes minimal power.
• High reliability: The EEPROM technology ensures reliable data retention and endurance.

Package

The 24AA256-I/SN is available in an industry-standard 8-pin Small Outline Integrated Circuit (SOIC) package.

Essence

The essence of this product lies in its ability to provide non-volatile memory storage that can be easily programmed and erased electronically.

Packaging/Quantity

The 24AA256-I/SN is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Endurance: 1 million cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 24AA256-I/SN has the following pin configuration:

1. VCC: Power supply voltage
2. SDA: Serial data input/output
3. SCL: Serial clock input
4. WP: Write protect input
5. VSS: Ground
6. NC: No connection
7. A0: Chip address input bit 0
8. A1: Chip address input bit 1

Functional Features

• Sequential Read: Allows for sequential reading of multiple memory locations.
• Random Read: Enables reading of specific memory locations.
• Write Protection: The WP pin can be used to protect the memory from accidental writes.
• Software Write Protection: Additional software-based write protection features are available.
• Self-Timed Programming Cycle: Simplifies programming operations by eliminating the need for external timing control.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even without power.
• High capacity: Ample storage space for various applications.
• Low power consumption: Ideal for battery-powered devices.
• Reliable data retention: Ensures long-term data integrity.
• Easy to program and erase: Simplifies development and maintenance processes.

Disadvantages

• Limited rewrite cycles: The EEPROM has a finite number of write cycles.
• Relatively slower write speed compared to other memory technologies.
• Higher cost per bit compared to some alternative memory solutions.

Working Principles

The 24AA256-I/SN utilizes an EEPROM technology that allows for electrically erasing and reprogramming of data. It consists of a grid of memory cells, each capable of storing a single bit of information. By applying appropriate voltage levels to the control pins (SDA, SCL), data can be written, read, or erased from specific memory locations.

Detailed Application Field Plans

The 24AA256-I/SN finds application in various fields, including but not limited to:

1. Microcontrollers: Used for storing firmware, configuration data, and calibration parameters.
2. Embedded Systems: Provides non-volatile storage for system settings, user preferences, and log data.
3. Consumer Electronics: Used in devices like smart TVs, set-top boxes, and audio systems for storing user profiles, channel lists, and firmware updates.
4. Industrial Automation: Enables storage of critical data, such as sensor calibration values and production logs.

Detailed and Complete Alternative Models

1. 24LC256: Similar EEPROM chip with the same capacity and package, manufactured by Microchip Technology.
2. AT24C256: EEPROM chip with the same capacity and package, manufactured by Atmel Corporation.
3. M24M02: EEPROM chip with a higher capacity (2 megabits) and similar package, manufactured by STMicroelectronics.

These alternative models offer similar functionality and can be considered as substitutes for the 24AA256-I/SN depending on specific requirements.

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