Encyclopedia Entry: 93C76A-I/ST

Product Information Overview

Category: Integrated Circuit (IC)

Use: The 93C76A-I/ST is a serial electrically erasable programmable read-only memory (EEPROM) IC. It is commonly used for non-volatile data storage in various electronic devices.

Characteristics: - Serial interface - Low power consumption - High reliability - Small form factor - Wide operating voltage range

Package: The 93C76A-I/ST is available in an STMicroelectronics SOIC-8 package, which stands for Small Outline Integrated Circuit. This package provides a compact and surface-mountable solution for easy integration into electronic circuits.

Essence: The essence of the 93C76A-I/ST lies in its ability to store and retrieve digital information reliably and efficiently in a non-volatile manner.

Packaging/Quantity: The 93C76A-I/ST is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Size: 8 kilobits (1 kilobyte)
• Organization: 256 x 8 bits
• Supply Voltage Range: 2.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 200 years (minimum)
• Endurance: 1 million write cycles (minimum)
• Write Time: 5 ms (maximum)
• Read Time: 150 ns (maximum)

Detailed Pin Configuration

The 93C76A-I/ST features an 8-pin configuration with the following pin assignments:

1. Chip Select (/CS): Enables communication with the IC when pulled low.
2. Serial Clock (CLK): Provides timing for data transfer.
3. Serial Data Input (DI): Receives data during write operations.
4. Serial Data Output (DO): Outputs data during read operations.
5. Write Protect (/WP): When pulled low, prevents write operations.
6. VCC: Power supply input (+2.5V to +5.5V).
7. Ground (GND): Common ground reference.
8. Not Connected (NC): No internal connection.

Functional Features

• Byte-wise and page-wise write operations
• Sequential read capability
• Software and hardware write protection options
• Self-timed programming cycle
• Automatic erase-before-write functionality

Advantages and Disadvantages

Advantages: - Compact size allows for easy integration into various electronic devices. - Low power consumption makes it suitable for battery-powered applications. - High reliability ensures data integrity over extended periods. - Wide operating voltage range provides flexibility in different systems. - User-friendly serial interface simplifies communication with the IC.

Disadvantages: - Limited storage capacity compared to other memory technologies. - Relatively slower write and read times compared to some alternatives. - Vulnerable to electromagnetic interference due to its small form factor.

Working Principles

The 93C76A-I/ST utilizes an electrically erasable programmable read-only memory (EEPROM) technology. It stores digital information by trapping charges within a floating gate transistor structure. These charges can be manipulated through electrical signals to represent binary data (0s and 1s). The stored information remains intact even when the power is disconnected.

Detailed Application Field Plans

The 93C76A-I/ST finds application in various electronic devices that require non-volatile data storage, such as: - Consumer electronics (e.g., TVs, set-top boxes, audio players) - Automotive systems (e.g., engine control units, infotainment systems) - Industrial equipment (e.g., measurement instruments, control systems) - Medical devices (e.g., patient monitors, diagnostic equipment)

Detailed and Complete Alternative Models

Some alternative models to the 93C76A-I/ST include: - 93C46A-I/ST: A lower capacity EEPROM IC with 1 kilobit memory size. - 93C86A-I/ST: A higher capacity EEPROM IC with 16 kilobits memory size. - 25AA080C-I/ST: A serial EEPROM IC from Microchip with similar specifications.

These alternatives offer different memory capacities and may have slight variations in features and pin configurations.

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