Encyclopedia Entry: 93LC76BT-E/MS

Product Overview

Category

The 93LC76BT-E/MS belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The 93LC76BT-E/MS retains stored data even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically, eliminating the need for physical removal.
• Small form factor: The chip is compact and suitable for integration into space-constrained devices.
• Low power consumption: It operates efficiently, minimizing energy requirements.
• High endurance: The EEPROM has a high number of write/erase cycles, ensuring long-term reliability.

Package and Quantity

The 93LC76BT-E/MS is available in a surface-mount package. Each package contains a single chip.

Specifications

• Memory capacity: 8 kilobits (1 kilobyte)
• Operating voltage: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)
• Write time: Typically 3ms per byte
• Erase time: Typically 3ms per sector

Pin Configuration

The chip features an 8-pin configuration with the following pin assignments:

| Pin Number | Name | Function | |------------|------|----------| | 1 | CS | Chip Select | | 2 | DO | Data Output | | 3 | WDI | Write Disable Input | | 4 | GND | Ground | | 5 | DI | Data Input | | 6 | CLK | Clock Input | | 7 | VCC | Power Supply | | 8 | HOLD | Hold Input |

Functional Features

• Random access: Allows reading and writing of data at any memory location.
• Byte-level programming: Enables individual byte programming for flexible data manipulation.
• Sector erase: Supports erasing of entire sectors for efficient memory management.
• Write protection: Provides write protection for specific memory areas to prevent accidental modification.
• Data integrity: Implements error detection and correction mechanisms to ensure reliable data storage.

Advantages

• Non-volatile nature ensures data retention even during power loss or device shutdown.
• Electrically erasable capability allows for easy reprogramming without physical intervention.
• Compact size facilitates integration into space-constrained electronic devices.
• Low power consumption extends battery life in portable applications.
• High endurance ensures long-term reliability and durability.

Disadvantages

• Limited memory capacity compared to other storage technologies.
• Relatively slower write and erase times compared to some alternative models.
• Vulnerable to electromagnetic interference, requiring proper shielding in sensitive applications.

Working Principles

The 93LC76BT-E/MS utilizes a combination of floating-gate transistors and control circuitry to store and retrieve data. When data is written, charges are trapped in the floating gate, altering the transistor's behavior. Erasing the data involves removing these charges, restoring the transistor to its original state. The chip's control circuitry manages the read, write, and erase operations, ensuring accurate data manipulation.

Application Field Plans

The 93LC76BT-E/MS finds application in various fields, including: 1. Microcontroller-based systems requiring non-volatile memory storage. 2. Computer motherboards for storing system configuration data. 3. Consumer electronics like smart TVs, set-top boxes, and gaming consoles for firmware storage. 4. Automotive electronics for storing critical data, such as calibration settings and vehicle parameters. 5. Industrial automation systems for storing configuration data and production logs.

Alternative Models

For those seeking alternatives to the 93LC76BT-E/MS, the following models offer similar functionality: 1. AT24C08AN-10SU-2.7: 8-kilobit EEPROM with an I2C interface. 2. M93C66-WMN6TP: 8-kilobit EEPROM with a Microwire interface. 3. CAT24C08WI-GT3: 8-kilobit EEPROM with an SPI interface.

These alternative models provide comparable features and can be considered based on specific application requirements.

In conclusion, the 93LC76BT-E/MS is a versatile EEPROM chip that offers non-volatile data storage, compact size, and low power consumption. Its functional features, advantages, and application field plans make it suitable for various electronic devices. While it has certain limitations, alternative models are available to cater to different needs.