Encyclopedia Entry: 93C66B-I/ST

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Characteristics: Small form factor, low power consumption, high reliability
• Package: SOIC-8 (Small Outline Integrated Circuit), Tape and Reel packaging
• Essence: Data storage and retrieval in electronic devices
• Packaging/Quantity: Available in reels of 2500 units

Specifications

The 93C66B-I/ST is a specific model within the 93C66B series of EEPROM ICs. It offers the following specifications: - Memory Size: 4 kilobits (512 x 8 bits) - Supply Voltage: 2.5V to 5.5V - Operating Temperature Range: -40°C to +85°C - Write Time: 5ms (typical) - Data Retention: 200 years (minimum)

Detailed Pin Configuration

The 93C66B-I/ST features an 8-pin SOIC package with the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | CS | Chip Select | | 2 | SK | Serial Clock | | 3 | DI | Data Input | | 4 | DO | Data Output | | 5 | VSS | Ground | | 6 | NC | No Connection | | 7 | NC | No Connection | | 8 | VCC | Power Supply |

Functional Features

• Non-volatile memory: The 93C66B-I/ST retains stored data even when power is removed.
• Electrically erasable and programmable: Data can be modified electronically without requiring physical removal of the IC.
• Serial interface: The IC communicates using a simple serial protocol, making it suitable for integration into various electronic systems.
• High reliability: Designed to withstand harsh environmental conditions and provide long-term data integrity.

Advantages and Disadvantages

Advantages: - Compact size allows for easy integration into space-constrained devices. - Low power consumption extends battery life in portable applications. - Wide operating voltage range enables compatibility with different power supply levels. - High data retention ensures long-term reliability.

Disadvantages: - Limited memory capacity may not be sufficient for certain applications. - Serial communication may result in slower data transfer compared to parallel interfaces. - Write time of 5ms may be relatively slow for some real-time applications.

Working Principles

The 93C66B-I/ST utilizes an electrically erasable programmable read-only memory (EEPROM) technology. It stores data in a grid of memory cells that can be individually programmed or erased using electrical signals. The IC communicates with the external system through a serial interface, allowing for easy integration and control.

Detailed Application Field Plans

The 93C66B-I/ST finds application in various electronic systems, including but not limited to: 1. Automotive electronics: Used for storing vehicle configuration settings, mileage data, and other non-volatile information. 2. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and home appliances for storing user preferences and firmware updates. 3. Industrial automation: Employed in control systems, sensors, and equipment for storing calibration data, device parameters, and log information. 4. Medical devices: Utilized for storing patient data, device configurations, and event logs in medical equipment and monitoring systems.

Detailed and Complete Alternative Models

• 93C46B-I/ST: 2 kilobits (256 x 8 bits) EEPROM IC with similar characteristics and package.
• 93C86B-I/ST: 16 kilobits (2048 x 8 bits) EEPROM IC with higher memory capacity but otherwise comparable features.

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