Encyclopedia Entry: 93AA76A-I/MS

Product Overview

Category

The 93AA76A-I/MS 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, computers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• Small form factor: The chip is compact and suitable for integration into space-constrained devices.
• High endurance: It can withstand a large number of erase/write cycles.
• Low power consumption: The chip operates efficiently with minimal power requirements.

Package and Quantity

The 93AA76A-I/MS is typically packaged in a small surface-mount package. The exact package type may vary depending on the manufacturer. It is commonly available in reels or tubes containing multiple units.

Specifications

• Memory capacity: 8 kilobits (1 kilobyte)
• Interface: Serial I2C (Inter-Integrated Circuit)
• Operating voltage: 1.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: Up to 1 million cycles
• Data retention: Up to 200 years

Pin Configuration

The 93AA76A-I/MS has a standard 8-pin configuration:

1. VCC: Power supply voltage
2. SDA: Serial data input/output
3. SCL: Serial clock input
4. WP: Write protect (optional)
5. VSS: Ground
6. NC: No connection
7. NC: No connection
8. VCC: Power supply voltage

Functional Features

• Sequential read and write operations: Allows for efficient data transfer.
• Software write protection: Provides the option to protect specific memory areas from being overwritten.
• Self-timed programming cycle: Simplifies the programming process by eliminating the need for external timing control.
• Partial page writes: Enables modification of specific portions of the memory without affecting the entire contents.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• Compact size allows for integration into various electronic devices.
• High endurance enables frequent data updates without compromising reliability.
• Low power consumption prolongs battery life in portable applications.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower read/write speeds compared to volatile memory types.
• Susceptible to electromagnetic interference (EMI) due to its small form factor.

Working Principles

The 93AA76A-I/MS utilizes EEPROM technology, which employs a floating gate transistor structure to store and retrieve data. The memory cells consist of transistors that can be electrically programmed and erased. When data is written, charge is trapped in the floating gate, altering the transistor's conductive properties. This stored charge represents the binary information. To read the data, the transistor's conductivity is measured, allowing the retrieval of the stored information.

Application Field Plans

The 93AA76A-I/MS finds application in various fields, including: 1. Automotive electronics: Used for storing configuration settings, mileage data, and error codes in automotive control units. 2. Industrial automation: Employed in programmable logic controllers (PLCs) for storing program code and critical data. 3. Consumer electronics: Integrated into smart TVs, set-top boxes, and audio systems for storing user preferences and firmware updates. 4. Medical devices: Utilized for storing patient data, calibration values, and device configurations in medical equipment.

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the 93AA76A-I/MS include: - AT24C08: Manufactured by Atmel, offering an 8-kilobit EEPROM with I2C interface. - CAT24C08: Produced by ON Semiconductor, providing an 8-kilobit EEPROM with I2C compatibility. - M24C08: Developed by STMicroelectronics, featuring an 8-kilobit EEPROM with I2C communication.

These alternative models can be considered based on specific application requirements and availability.

In conclusion, the 93AA76A-I/MS is a compact and versatile EEPROM chip used for non-volatile data storage in various electronic devices. Its high endurance, low power consumption, and software write protection make it suitable for a wide range of applications. However, its limited capacity and susceptibility to EMI should be taken into consideration.