25LC256-I/MF

Product Overview

Category

The 25LC256-I/MF belongs to the category of serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

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

Characteristics

• Non-volatile memory
• Serial interface
• Low power consumption
• High reliability
• Small form factor

Package

The 25LC256-I/MF is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

This chip serves as a reliable and efficient means of storing critical data in electronic systems.

Packaging/Quantity

It is typically supplied in tape and reel packaging with quantities varying based on customer requirements.

Specifications

• Memory Size: 256 Kbits
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.5V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

1. Chip Select (/CS)
2. Serial Data Input/Output (SDI/SDO)
3. Serial Clock (SCK)
4. VSS (Ground)
5. Serial Data Out (SDO)
6. Serial Data In (SDI)
7. Serial Clock (SCK)
8. VCC (Power)

Functional Features

• Byte and Page Write Modes
• Self-timed Write Cycle
• Sequential Reads
• Uncommitted Memory

Advantages

• Compact form factor
• Low power consumption
• High reliability
• Wide operating voltage range

Disadvantages

• Limited storage capacity compared to other memory technologies
• Slower write speeds compared to volatile memory

Working Principles

The 25LC256-I/MF utilizes the SPI protocol to communicate with the host microcontroller or system. It stores data in a non-volatile manner, allowing for retention of information even when power is removed.

Detailed Application Field Plans

• Consumer Electronics: Used in smart home devices, wearables, and digital cameras for data storage.
• Industrial Equipment: Employed in sensor modules, control systems, and monitoring devices for parameter storage.
• Automotive Applications: Integrated into vehicle control units, infotainment systems, and telematics modules for configuration and logging purposes.

Detailed and Complete Alternative Models

• 24LC256: Similar EEPROM chip with I2C interface
• AT25DF041A: Serial flash memory with higher capacity
• M95M02: SPI-based EEPROM with extended temperature range

In conclusion, the 25LC256-I/MF offers a reliable and efficient solution for non-volatile data storage in a wide range of electronic applications, making it an essential component in modern embedded systems.

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