24CW640T-I/ST

Product Overview

Category

The 24CW640T-I/ST belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices, such as microcontrollers, sensors, and communication modules.

Characteristics

• High storage capacity: The 24CW640T-I/ST offers a storage capacity of 64 kilobits (8 kilobytes).
• Low power consumption: It operates at low voltage levels, making it suitable for battery-powered devices.
• Fast data transfer: The chip supports high-speed I2C (Inter-Integrated Circuit) communication protocol.
• Reliable data retention: The EEPROM ensures data integrity even during power loss or system failures.

Package

The 24CW640T-I/ST is available in a small surface-mount package (ST), which facilitates easy integration into compact electronic designs.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact form factor, enabling efficient operation of various electronic devices.

Packaging/Quantity

The 24CW640T-I/ST is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Interface: I2C (Inter-Integrated Circuit)
• Supply Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 200 years
• Write Endurance: 1 million write cycles

Detailed Pin Configuration

The 24CW640T-I/ST follows a standard 8-pin configuration:

1. VCC: Supply voltage input
2. SDA: Serial data line for I2C communication
3. SCL: Serial clock line for I2C communication
4. WP: Write Protect pin for write protection functionality
5. A0: Address bit 0 for device addressing
6. A1: Address bit 1 for device addressing
7. A2: Address bit 2 for device addressing
8. GND: Ground reference

Functional Features

• Byte and Page Write Operations: The chip supports both byte-level and page-level write operations, allowing flexible data storage.
• Software Write Protection: The WP pin can be used to enable or disable write protection, preventing accidental modification of stored data.
• Sequential Read Operation: The EEPROM allows sequential read access, enabling efficient retrieval of stored data.
• Self-Timed Programming Cycle: The programming cycle is internally controlled, eliminating the need for external timing signals.

Advantages and Disadvantages

Advantages

• High storage capacity for a wide range of applications.
• Low power consumption, suitable for battery-powered devices.
• Reliable data retention, ensuring data integrity in critical systems.
• Compact form factor for easy integration into electronic designs.
• Flexible write protection mechanism for enhanced data security.

Disadvantages

• Limited storage capacity compared to other non-volatile memory options.
• Relatively slower write speed compared to some alternative memory technologies.

Working Principles

The 24CW640T-I/ST utilizes an electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping charges within floating gate transistors, which can be electrically programmed and erased. The I2C interface facilitates communication between the chip and the host microcontroller, enabling read and write operations.

Detailed Application Field Plans

The 24CW640T-I/ST finds applications in various fields, including but not limited to: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Internet of Things (IoT) devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 24CW640T-I/ST include: - AT24C64 by Atmel - CAT24C64 by ON Semiconductor - M24C64 by STMicroelectronics - 25AA640A by Microchip Technology

These alternative models provide comparable storage capacity, interface compatibility, and performance characteristics.

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