BR93L66RFV-WE2

Product Overview

Category

BR93L66RFV-WE2 belongs to the category of non-volatile electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for storing and retrieving data in electronic devices. It provides a reliable and non-volatile storage solution for various applications.

Characteristics

• Non-volatile: The stored data remains intact even when power is disconnected.
• Electrically erasable: Data can be erased and reprogrammed electronically, eliminating the need for physical removal or replacement.
• Programmable: Users can write and modify data as needed.
• Compact package: The BR93L66RFV-WE2 comes in a small form factor, making it suitable for space-constrained designs.
• High endurance: This EEPROM chip offers a high number of erase/write cycles, ensuring long-term reliability.

Package and Quantity

The BR93L66RFV-WE2 is typically packaged in a surface-mount 8-pin SOP (Small Outline Package). Each package contains one chip.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Supply voltage: 1.8V to 5.5V
• Operating temperature range: -40°C to +85°C
• Interface: SPI (Serial Peripheral Interface)
• Write time: 5ms (typical)
• Data retention: 200 years (minimum)

Pin Configuration

The BR93L66RFV-WE2 features an 8-pin SOP package with the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | CS | Chip Select | | 2 | SCK | Serial Clock | | 3 | SI | Serial Input | | 4 | SO | Serial Output | | 5 | WP | Write Protect | | 6 | VSS | Ground | | 7 | HOLD | Hold Input | | 8 | VCC | Supply Voltage |

Functional Features

• High-speed data transfer: The SPI interface allows for fast and efficient communication between the chip and the host device.
• Write protection: The WP pin can be used to protect the stored data from accidental modification.
• Hold function: The HOLD pin enables the temporary suspension of ongoing operations without losing data.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss or device shutdown.
• Electrically erasable: Allows for easy and convenient data modification.
• Compact size: Suitable for space-constrained designs.
• High endurance: Can withstand a large number of erase/write cycles.

Disadvantages

• Limited storage capacity: With only 4 kilobits of memory, it may not be suitable for applications requiring extensive data storage.
• Relatively slower write time compared to other memory technologies.

Working Principles

The BR93L66RFV-WE2 utilizes EEPROM technology, which relies on electrically controlled floating gate transistors to store and retrieve data. When data is written, an electrical charge is applied to the floating gate, altering its conductivity and storing the desired information. To read the data, the transistor's conductivity is measured, allowing the stored information to be retrieved.

Detailed Application Field Plans

The BR93L66RFV-WE2 finds application in various electronic devices, including but not limited to: - Consumer electronics: Used for storing configuration settings, user preferences, and small data sets in devices such as TVs, set-top boxes, and audio systems. - Industrial automation: Enables data storage for equipment calibration, parameter settings, and event logging in industrial control systems. - Automotive electronics: Used for storing vehicle-specific data, such as mileage, service history, and user preferences in automotive modules.

Detailed Alternative Models

For those seeking alternative options, the following EEPROM chips can be considered: - AT24C04: 4 kilobit I2C-compatible EEPROM chip manufactured by Atmel. - CAT24C04: 4 kilobit I2C-compatible EEPROM chip manufactured by ON Semiconductor. - M93C46: 4 kilobit SPI-compatible EEPROM chip manufactured by STMicroelectronics.

In conclusion, the BR93L66RFV-WE2 is a non-volatile EEPROM chip with a compact form factor, high endurance, and electrically erasable characteristics. It finds application in various electronic devices and offers advantages such as non-volatility and ease of data modification. However, its limited storage capacity and relatively slower write time should be considered when selecting an appropriate memory solution.