Encyclopedia Entry: 93AA76A-I/P

Product Overview

Category

The 93AA76A-I/P belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The 93AA76A-I/P retains stored data even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High endurance: This chip supports a large number of write/erase cycles.
• Small form factor: The 93AA76A-I/P is available in a compact package, making it suitable for space-constrained applications.

Package and Quantity

The 93AA76A-I/P is packaged in a plastic DIP (Dual Inline Package) with 8 pins. It is typically sold in quantities of 25 or more.

Essence

The essence of the 93AA76A-I/P lies in its ability to provide reliable and non-volatile data storage in electronic devices, ensuring that critical information is retained even during power interruptions or system shutdowns.

Specifications

• Memory capacity: 8 kilobits (1 kilobyte)
• Operating voltage: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write time: 3ms (typical)
• Erase time: 3ms (typical)
• Data retention: Up to 200 years

Detailed Pin Configuration

The 93AA76A-I/P has the following pin configuration:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Write Protect (/WP)
6. VCC (Power Supply)
7. Ground (GND)
8. Not Connected (NC)

Functional Features

• Sequential read and write operations
• Software and hardware write protection options
• Self-timed programming cycle
• Power-saving standby mode
• High-speed clock frequency support

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention in power-off situations.
• Electrically erasable and reprogrammable, allowing for flexibility in data updates.
• Compact form factor enables integration into space-constrained designs.
• High endurance supports frequent write/erase cycles.

Disadvantages

• Limited memory capacity compared to other EEPROM chips.
• Relatively slower write and erase times compared to some competing products.
• Higher cost per kilobit compared to larger capacity EEPROMs.

Working Principles

The 93AA76A-I/P utilizes a floating gate transistor structure to store and retrieve data. When data is written, an electrical charge is trapped in the floating gate, altering the transistor's behavior. This change can be detected during read operations. Erasing the data involves removing the trapped charge from the floating gate, resetting the transistor to its original state.

Detailed Application Field Plans

The 93AA76A-I/P finds applications in various fields, including: 1. Automotive electronics: Used for storing vehicle configuration data, mileage records, and diagnostic information. 2. Industrial automation: Enables parameter storage, calibration data, and device identification in programmable logic controllers (PLCs) and industrial control systems. 3. Consumer electronics: Utilized in smart devices, wearables, and home appliances for storing user preferences, settings, and firmware updates.

Alternative Models

For those seeking alternatives to the 93AA76A-I/P, the following models provide similar functionality: 1. 24AA08: 8 kilobit EEPROM with I2C interface. 2. AT93C66A: 4 kilobit EEPROM with SPI interface. 3. CAT24C08: 8 kilobit EEPROM with I2C interface and additional write protection features.

These alternative models offer comparable memory capacities and interface options, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the 93AA76A-I/P is a reliable and versatile EEPROM chip that provides non-volatile data storage in various electronic devices. Its compact size, high endurance, and electrically erasable characteristics make it an ideal choice for applications where data retention and flexibility are crucial.