Encyclopedia Entry: 93LC76A-I/P

Product Overview

Category

The 93LC76A-I/P belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The 93LC76A-I/P retains stored data even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically, without requiring physical removal of the chip.
• Small form factor: The chip is compact and suitable for integration into space-constrained devices.
• Low power consumption: It operates efficiently, minimizing energy usage.

Package

The 93LC76A-I/P is available in a plastic dual in-line package (PDIP), which provides mechanical protection and facilitates easy soldering onto circuit boards.

Essence

The essence of the 93LC76A-I/P lies in its ability to store and retrieve digital information reliably, making it an essential component for data storage in electronic systems.

Packaging/Quantity

This chip is typically packaged in reels or tubes, with each reel containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory capacity: 8 kilobits (1 kilobyte)
• Operating voltage: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million write cycles
• Data retention: 200 years

Detailed Pin Configuration

The 93LC76A-I/P has a total of 8 pins, each serving a specific function:

1. Chip Select (/CS): Enables or disables the chip for communication.
2. Serial Clock (CLK): Provides the timing for data transfer.
3. Serial Data Input (DI): Receives data to be written into the memory.
4. Serial Data Output (DO): Outputs data read from the memory.
5. Write Enable (/W): Controls write operations.
6. VCC: Power supply voltage.
7. VSS: Ground reference.
8. NC: No connection.

Functional Features

• Sequential read and write operations: The chip allows sequential access to memory locations, facilitating efficient data handling.
• Hardware and software protection: It supports various protection mechanisms to prevent unauthorized access or accidental modification of stored data.
• Fast operation: The 93LC76A-I/P offers high-speed data transfer, reducing access time and enhancing overall system performance.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss.
• Electrically erasable: Allows for easy reprogramming without physical removal.
• Compact size: Suitable for integration in space-constrained devices.
• Low power consumption: Efficient operation minimizes energy usage.

Disadvantages

• Limited storage capacity: With only 8 kilobits, it may not be suitable for applications requiring large amounts of data storage.
• Relatively slower write speed compared to other memory technologies.

Working Principles

The 93LC76A-I/P utilizes a combination of electronic circuits and semiconductor memory cells to store and retrieve digital information. It employs a serial communication protocol to transfer data between the chip and the controlling device. When writing data, an electrical charge is applied to specific memory cells, altering their state. Reading data involves sensing the state of these cells and converting it back into digital information.

Detailed Application Field Plans

The 93LC76A-I/P finds application in various fields, including: 1. Microcontroller-based systems: Used for storing program code, configuration settings, and calibration data. 2. Computer motherboards: Employed for storing BIOS settings and system information. 3. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and audio systems for data storage purposes.

Detailed and Complete Alternative Models

1. 93LC66A-I/P: Similar to the 93LC76A-I/P but with a smaller memory capacity of 4 kilobits.
2. 93LC86A-I/P: Offers a larger memory capacity of 16 kilobits, suitable for applications requiring more storage space.
3. 93LC1024-I/P: Provides a significantly higher memory capacity of 128 kilobits, catering to applications demanding extensive data storage.

In conclusion, the 93LC76A-I/P is an electrically erasable programmable read-only memory (EEPROM) chip that offers non-volatile data storage in a compact form factor. With its sequential access, protection features, and low power consumption, it serves as a reliable solution for various electronic systems. However, its limited storage capacity and relatively slower write speed should be considered when selecting alternative models for specific application requirements.