25LC640A-I/SN

Product Overview

Category

The 25LC640A-I/SN belongs to the category of serial EEPROM (Electrically Erasable Programmable Read-Only Memory) devices.

Use

It is commonly used for non-volatile data storage in various electronic devices, including consumer electronics, industrial equipment, and automotive applications.

Characteristics

• The 25LC640A-I/SN offers low-power consumption, high reliability, and a wide operating voltage range.
• It is designed for easy integration into existing circuit designs and supports high-frequency operation.

Package

The 25LC640A-I/SN is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for space-constrained applications.

Essence

This device provides a reliable and efficient solution for storing critical configuration and operational data in electronic systems.

Packaging/Quantity

It is typically supplied in tape and reel packaging, with quantities varying based on the manufacturer's specifications.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage Range: 2.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 25LC640A-I/SN features the following pin configuration: 1. Chip Select (/CS) 2. Serial Clock (SCK) 3. Serial Data Input/Output (SI/O) 4. Ground (GND) 5. Write Protect (/WP) 6. VCC (Power Supply) 7. Hold (/HOLD) 8. Serial Data Output (SO)

Functional Features

• Byte and Page Write Operations
• Sequential Read Capability
• Software and Hardware Write Protection
• Deep Power-down Mode for Ultra-low Power Consumption

Advantages

• Compact form factor for space-constrained designs
• Wide operating voltage range for flexibility in system integration
• High reliability and long-term data retention
• Support for hardware and software write protection mechanisms

Disadvantages

• Limited memory capacity compared to larger EEPROM devices
• Higher cost per bit compared to larger capacity memory solutions

Working Principles

The 25LC640A-I/SN operates by utilizing the SPI interface to enable data read, write, and erase operations. It employs a floating gate transistor technology to achieve non-volatile data storage.

Detailed Application Field Plans

The 25LC640A-I/SN is well-suited for use in various applications, including: - Automotive Electronics: Configuration storage, event logging - Industrial Control Systems: Parameter storage, firmware updates - Consumer Electronics: System configuration, user preferences

Detailed and Complete Alternative Models

Some alternative models to the 25LC640A-I/SN include: - 25AA640A - 25LC1024 - 25LC128

In conclusion, the 25LC640A-I/SN serial EEPROM device offers a reliable and efficient solution for non-volatile data storage in a wide range of electronic applications, providing essential functionality and characteristics for modern embedded systems.

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