Encyclopedia Entry: 93LC66BT-I/OT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Serial Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Characteristics: Small form factor, low power consumption, high reliability
• Package: SOT-23-6 package
• Essence: Data storage and retrieval in electronic devices
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on manufacturer

Specifications

• Memory Size: 4Kbits (512 x 8 bits)
• Operating Voltage: 2.5V to 5.5V
• Interface: Serial Peripheral Interface (SPI)
• Write Time: 3ms typical
• Data Retention: 200 years minimum
• Operating Temperature Range: -40°C to +85°C

Detailed 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. Ground (GND)
7. VCC

Functional Features

• Non-volatile memory: Retains data even when power is disconnected
• Serial interface: Allows for easy integration with microcontrollers and other digital systems
• Electrically erasable: Enables rewriting of data without requiring physical removal of the IC
• High reliability: Designed to withstand harsh environmental conditions
• Low power consumption: Ideal for battery-powered devices

Advantages

• Compact size allows for space-efficient designs
• Wide operating voltage range provides flexibility in various applications
• Fast write time enhances overall system performance
• Long data retention period ensures data integrity over extended periods
• Compatibility with SPI interface simplifies integration with existing systems

Disadvantages

• Limited memory size may not be suitable for applications requiring larger storage capacity
• SOT-23-6 package may require additional considerations for heat dissipation in high-power applications

Working Principles

The 93LC66BT-I/OT EEPROM utilizes a floating gate transistor structure to store and retrieve data. When data is written, an electric charge is trapped in the floating gate, altering the transistor's behavior. This change can be detected during read operations, allowing the stored data to be retrieved.

Detailed Application Field Plans

• Consumer electronics: Used in devices such as smartphones, tablets, and digital cameras for storing configuration settings and user data
• Automotive industry: Employed in electronic control units (ECUs) for storing critical vehicle parameters and calibration data
• Industrial automation: Utilized in programmable logic controllers (PLCs) for storing program code and system configuration data
• Medical devices: Integrated into medical equipment for storing patient information and device settings

Detailed and Complete Alternative Models

1. 93LC66B-I/OT: Similar specifications but with a different package (8-pin PDIP)
2. 93LC66C-I/OT: Higher operating temperature range (-40°C to +125°C)
3. 93LC66D-I/OT: Lower operating voltage range (1.8V to 5.5V)

Note: The above alternative models are provided for reference and may have slight variations in features and pin configurations.

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