Encyclopedia Entry: 93LC66BX-I/SN

Product Overview

Category

The 93LC66BX-I/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The 93LC66BX-I/SN can be erased and reprogrammed electronically, eliminating the need for physical erasure.
• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: This chip has a storage capacity of 4 kilobits (512 bytes).
• Low power consumption: It operates on low power, making it suitable for battery-powered devices.

Package

The 93LC66BX-I/SN comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to store and retrieve data reliably in electronic systems.

Packaging/Quantity

The 93LC66BX-I/SN is typically packaged in reels or tubes, with each reel containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 4 kilobits (512 bytes)
• Operating Voltage: 2.5V to 5.5V
• Interface: Serial Peripheral Interface (SPI)
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 93LC66BX-I/SN has a total of 8 pins, which are assigned specific functions:

1. Chip Select (/CS): Enables communication with the chip when pulled low.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Used to input data into the chip.
4. Serial Data Output (SO): Outputs data from the chip during read operations.
5. Write Protect (/WP): When pulled low, prevents write operations.
6. VCC: Power supply voltage input.
7. Ground (GND): Common ground reference.
8. Hold (/HOLD): Pauses ongoing operations when pulled low.

Functional Features

• Byte-level Read/Write: The 93LC66BX-I/SN allows individual bytes to be read from or written to, providing flexibility in data manipulation.
• Sequential Read: It supports sequential read operations, allowing for efficient retrieval of consecutive data bytes.
• Hardware Write Protection: The /WP pin can be used to protect the stored data from accidental overwriting.
• Low Power Consumption: This chip operates on low power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Electrically erasable and reprogrammable.
• Non-volatile data storage.
• Compact SOIC package.
• High storage capacity.
• Low power consumption.

Disadvantages

• Limited storage capacity compared to other EEPROM chips.
• Requires a compatible SPI interface for communication.

Working Principles

The 93LC66BX-I/SN utilizes an array of floating-gate transistors to store data. These transistors can be electrically programmed and erased by applying specific voltage levels. During read operations, the stored charge in each transistor is measured to determine the stored data.

Detailed Application Field Plans

The 93LC66BX-I/SN finds applications in various electronic systems, including but not limited to: - Microcontrollers - Computers - Consumer electronics - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the 93LC66BX-I/SN include: - 93LC66A - 93LC66C - 93LC66D - 93LC66F

These alternative models offer similar functionality and characteristics, but may differ in package type or storage capacity.

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