AT93C66B-MAHM-E

Product Overview

Category

AT93C66B-MAHM-E belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The data stored in AT93C66B-MAHM-E remains even when power is removed.
• Electrically erasable: The chip allows for easy modification and erasure of stored data.
• High storage capacity: AT93C66B-MAHM-E has a storage capacity of 4 kilobits (512 bytes).
• Low power consumption: The chip operates on low power, making it suitable for battery-powered devices.

Package

AT93C66B-MAHM-E is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of AT93C66B-MAHM-E lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even during power loss or device shutdown.

Packaging/Quantity

AT93C66B-MAHM-E is typically sold in reels containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 4 kilobits (512 bytes)
• Interface: Serial I2C (Inter-Integrated Circuit)
• Operating Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Time: 5 ms (typical)
• Data Retention: 200 years (minimum)

Detailed Pin Configuration

The AT93C66B-MAHM-E chip 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

• High-speed data transfer: AT93C66B-MAHM-E supports fast serial communication, enabling quick read and write operations.
• Built-in write protection: The chip includes a write protect pin (/WP) that can be used to prevent accidental modification of stored data.
• Sequential read operation: AT93C66B-MAHM-E allows for sequential reading of multiple memory locations, reducing access time.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity during power loss.
• Electrically erasable and reprogrammable, allowing for easy updates.
• Low power consumption makes it suitable for battery-powered devices.
• Compact package size enables integration into various electronic systems.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write times compared to some alternative models.
• Requires an external microcontroller or interface for communication.

Working Principles

AT93C66B-MAHM-E utilizes EEPROM technology to store data. It consists of a grid of memory cells that can be individually programmed or erased using electrical signals. The chip communicates with an external microcontroller or device through the I2C interface, enabling read and write operations.

Detailed Application Field Plans

AT93C66B-MAHM-E finds applications in various fields, including:

1. Automotive electronics: Used for storing vehicle configuration data, mileage information, and security codes.
2. Industrial automation: Employed in programmable logic controllers (PLCs) for storing program instructions and configuration settings.
3. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences and firmware updates.
4. Medical devices: Utilized for storing patient data, device settings, and calibration information in medical equipment.

Detailed and Complete Alternative Models

1. AT93C46B-MAHM-E: Similar to AT93C66B-MAHM-E but with a smaller memory capacity of 2 kilobits (256 bytes).
2. AT93C86B-MAHM-E: Offers a higher memory capacity of 16 kilobits (2 kilobytes) compared to AT93C66B-MAHM-E.
3. AT25M02-MAHM-T: An alternative EEPROM chip with a larger memory capacity of 16 kilobits (2 kilobytes) and a different interface (SPI).

These alternative models provide options with varying storage capacities and interface compatibility, allowing users to choose the most suitable chip for their specific requirements.

In conclusion, AT93C66B-MAHM-E is an electrically erasable programmable read-only memory chip that offers non-volatile storage, high reliability, and low power consumption. Its compact package and