24LC64-E/ST

Product Overview

Category

The 24LC64-E/ST belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The 24LC64-E/ST allows for easy erasure and reprogramming of data.
• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: This chip has a capacity of 64 kilobits (8 kilobytes).
• Low power consumption: It operates at low voltage levels, making it energy-efficient.
• I2C interface: The chip communicates with other devices using the I2C protocol.
• Wide temperature range: It can operate reliably in temperatures ranging from -40°C to +85°C.

Package

The 24LC64-E/ST is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the 24LC64-E/ST lies in its ability to store and retrieve data reliably, while offering ease of use and low power consumption.

Packaging/Quantity

This chip is typically sold in reels or tubes, with each reel containing 2500 units.

Specifications

• Memory capacity: 64 kilobits (8 kilobytes)
• Operating voltage: 1.7V to 5.5V
• Maximum clock frequency: 400 kHz
• Write endurance: 1 million write cycles
• Data retention: 200 years
• Package dimensions: 150 mil (milli-inch) width, 209 mil length, 50 mil height

Detailed Pin Configuration

The 24LC64-E/ST has the following pin configuration:

1. VCC: Power supply voltage
2. SDA: Serial data input/output
3. SCL: Serial clock input
4. WP: Write protect (optional)
5. VSS: Ground
6. NC: No connection
7. NC: No connection
8. NC: No connection

Functional Features

• Random access: The chip allows for direct access to any memory location, enabling efficient data retrieval.
• Byte-level read and write operations: Data can be read from or written to the chip at the byte level, providing flexibility in data manipulation.
• Hardware write protection: The optional write protect pin (WP) can be used to prevent accidental modification of stored data.
• Sequential read mode: The chip supports sequential read operations, allowing for faster data retrieval.

Advantages and Disadvantages

Advantages

• High storage capacity
• Low power consumption
• Wide temperature range
• Easy to use and program
• Reliable data retention

Disadvantages

• Limited maximum clock frequency
• Requires an external I2C interface for communication

Working Principles

The 24LC64-E/ST utilizes a combination of electrically erasable floating-gate transistors and a control circuitry to store and retrieve data. When writing data, the control circuitry applies a high voltage to the selected memory cells, causing electrons to tunnel into or out of the floating gate, altering its charge state. This change in charge determines the stored data. During read operations, the control circuitry senses the charge state of the memory cells and outputs the corresponding data.

Detailed Application Field Plans

The 24LC64-E/ST finds applications in various fields, including: 1. Automotive electronics: Used for storing vehicle configuration data, firmware updates, and diagnostic information. 2. Industrial automation: Employed for storing calibration data, configuration settings, and event logs in programmable logic controllers (PLCs) and sensors. 3. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences, firmware updates, and application data.

Detailed and Complete Alternative Models

1. 24LC32-E/ST: A similar EEPROM chip with a lower storage capacity of 32 kilobits.
2. 24LC128-E/ST: An alternative model with a higher storage capacity of 128 kilobits.
3. 24LC256-E/ST: Another alternative model offering an even larger storage capacity of 256 kilobits.

These alternative models provide options for different memory requirements while maintaining similar characteristics and functionality to the 24LC64-E/ST.

In conclusion, the 24LC64-E/ST is a versatile EEPROM chip that offers high storage capacity, low power consumption, and reliable data retention. Its ease of use and wide temperature range make it suitable for various applications in automotive, industrial, and consumer electronics. With its detailed pin configuration, functional features, and alternative models, the 24LC64-E