Encyclopedia Entry: 93LC66BX/SN

Product Overview

Category

The 93LC66BX/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

• Non-volatile: The 93LC66BX/SN retains stored data even when power is removed.
• Electrically erasable: The chip can be erased and reprogrammed electronically.
• Small form factor: The package size allows for easy integration into compact electronic devices.
• High reliability: The product offers robust performance and long-term data retention.
• Low power consumption: The 93LC66BX/SN operates efficiently, minimizing energy usage.

Package and Quantity

The 93LC66BX/SN is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Operating voltage: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million cycles
• Data retention: 200 years

Pin Configuration

The 93LC66BX/SN has eight pins, each serving a specific function:

1. Chip Select (/CS): Enables communication with the chip.
2. Serial Clock (SCK): Provides timing for data transfer.
3. Serial Data Input (SI): Receives data from the external device.
4. Serial Data Output (SO): Transmits data to the external device.
5. Write Enable (W): Controls write operations.
6. VCC: Power supply input.
7. Ground (GND): Common ground connection.
8. Hold (/HOLD): Suspends ongoing operations temporarily.

Functional Features

• Sequential read and write operations: The chip allows for efficient data transfer.
• Software and hardware protection: Security measures prevent unauthorized access to stored data.
• Self-timed programming cycle: Simplifies integration into various systems.
• Fast erase and write times: Enhances overall performance and productivity.

Advantages and Disadvantages

Advantages

• Compact size enables integration into space-constrained devices.
• High reliability ensures data integrity in critical applications.
• Low power consumption prolongs battery life in portable electronics.
• Versatile compatibility with different microcontrollers and systems.

Disadvantages

• Limited memory capacity may not suffice for certain applications requiring larger storage.
• Relatively higher cost compared to other non-volatile memory options.
• Erase and write cycles have a finite limit, which may affect long-term usage.

Working Principles

The 93LC66BX/SN utilizes an electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping electrical charges within its memory cells. These charges can be manipulated through electronic signals to modify or retrieve stored information.

Application Field Plans

The 93LC66BX/SN finds application in various fields, including: 1. Automotive electronics: Used for storing vehicle-specific configurations and data. 2. Industrial automation: Enables parameter storage and system configuration in control units. 3. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for firmware storage and customization.

Alternative Models

Several alternative models offer similar functionality to the 93LC66BX/SN. Some notable alternatives include: - AT24C04: Manufactured by Atmel, this EEPROM chip offers a larger memory capacity of 4 kilobits. - CAT24C02: Produced by ON Semiconductor, this EEPROM chip provides a smaller memory capacity of 2 kilobits. - M93C66: Manufactured by STMicroelectronics, this EEPROM chip offers compatibility with a wide range of microcontrollers.

In conclusion, the 93LC66BX/SN is a compact and reliable EEPROM chip used for non-volatile data storage in various electronic devices. Its small form factor, high reliability, and low power consumption make it suitable for a wide range of applications. However, its limited memory capacity and finite erase/write cycles should be considered when selecting an appropriate alternative model.