25LC640T-I/SN

Product Overview

Category

The 25LC640T-I/SN belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, sensors, and other embedded systems.

Characteristics

• Capacity: 64 kilobits (8 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Low power consumption
• High reliability and endurance
• Wide operating voltage range
• Small form factor

Package

The 25LC640T-I/SN is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact and low-power package, making it suitable for a wide range of applications.

Packaging/Quantity

The 25LC640T-I/SN is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Operating Voltage Range: 2.5V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Write Endurance: 1 million cycles
• Data Retention: 200 years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 25LC640T-I/SN has the following pin configuration:

1. Chip Select (/CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Write Protect (/WP)
6. VSS (Ground)
7. Hold (/HOLD)
8. VCC (Power)

Functional Features

• Byte-level read and write operations
• Sector erase capability
• Software write protection
• Sequential read mode for faster data retrieval
• Hardware write protection using the /WP pin
• Low power consumption in standby mode

Advantages and Disadvantages

Advantages

• Compact form factor
• High reliability and endurance
• Wide operating voltage range
• Easy integration with microcontrollers and other devices
• Cost-effective solution for non-volatile data storage

Disadvantages

• Limited capacity compared to larger EEPROMs
• Slower write speeds compared to some other memory technologies

Working Principles

The 25LC640T-I/SN utilizes the Serial Peripheral Interface (SPI) protocol to communicate with the host device. It stores data in non-volatile memory cells that can be electrically erased and reprogrammed. The SPI interface allows for easy integration with microcontrollers, enabling efficient data transfer and manipulation.

Detailed Application Field Plans

The 25LC640T-I/SN finds applications in various fields, including but not limited to:

1. Internet of Things (IoT) devices
2. Automotive electronics
3. Industrial control systems
4. Medical equipment
5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 25LC640T-I/SN include:

1. AT24C64 - Atmel
2. CAT24C64 - ON Semiconductor
3. M95040-WMN6TP - STMicroelectronics
4. FM24CL64B-GTR - Cypress Semiconductor

These alternative models provide comparable capacity, interface compatibility, and features, allowing users to choose the most suitable option for their specific application requirements.

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