AT93C66W-10SI-2.7

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Serial EEPROM Memory
• Characteristics:
  • Low-power CMOS technology
  • High-speed operation
  • Wide voltage range
  • Small package size
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The AT93C66W-10SI-2.7 is a non-volatile memory chip that provides reliable data storage in various electronic devices.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Operating Voltage: 2.7V to 5.5V
• Memory Size: 4Kbits (512 x 8 bits)
• Organization: 64 pages of 8 bytes each
• Write Time: 5ms (maximum)
• Data Retention: 100 years (minimum)
• Endurance: 1 million write cycles (minimum)

Detailed Pin Configuration

The AT93C66W-10SI-2.7 has a total of 8 pins, which are as follows:

1. Chip Select (/CS): Enables the device for communication.
2. Serial Clock (SCK): Provides the clock signal 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): Allows or prevents write operations.
6. VCC: Power supply input (2.7V to 5.5V).
7. Ground (GND): Common ground reference.
8. NC: No connection (unused pin).

Functional Features

• Non-volatile Memory: The AT93C66W-10SI-2.7 retains stored data even when power is removed.
• Serial Interface: It utilizes a simple 3-wire serial communication protocol for easy integration with microcontrollers and other devices.
• High-Speed Operation: The chip offers fast read and write operations, allowing for efficient data access.
• Low Power Consumption: Designed with low-power CMOS technology, it minimizes energy consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - Compact Size: The small package size makes it suitable for space-constrained designs. - Wide Voltage Range: Supports a wide range of operating voltages, enhancing compatibility. - High Data Retention: Ensures long-term data integrity with a minimum retention period of 100 years. - Durable: Withstands up to 1 million write cycles, providing reliable data storage.

Disadvantages: - Limited Memory Size: The AT93C66W-10SI-2.7 has a relatively small memory capacity compared to larger EEPROMs. - Lack of Security Features: It does not include built-in security features like hardware encryption or write protection mechanisms.

Working Principles

The AT93C66W-10SI-2.7 operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It uses a floating gate transistor structure to store and retrieve data. During write operations, an electrical charge is applied to the floating gate, altering its threshold voltage and storing the desired data. Reading the stored data involves sensing the voltage level of the floating gate transistor.

Detailed Application Field Plans

The AT93C66W-10SI-2.7 finds application in various electronic systems, including but not limited to: - Automotive electronics - Industrial control systems - Consumer electronics - Medical devices - Communication equipment

Its non-volatile nature, compact size, and low power consumption make it suitable for applications where reliable data storage is required.

Detailed and Complete Alternative Models

• AT93C46W-10SI-2.7: Similar to the AT93C66W-10SI-2.7, but with a smaller memory size of 2Kbits.
• AT93C86A-10SU-2.7: Offers a larger memory size of 16Kbits and operates at a higher voltage range.

These alternative models provide options with varying memory capacities and specifications to suit different application requirements.

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