25LC256X-E/ST

Product Overview

Category

The 25LC256X-E/ST belongs to the category of serial EEPROM (Electrically Erasable Programmable Read-Only Memory) devices.

Use

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

Characteristics

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

Package

The 25LC256X-E/ST is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the 25LC256X-E/ST lies in its ability to provide reliable and non-volatile data storage in a compact and energy-efficient form.

Packaging/Quantity

The device is typically supplied in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Memory Size: 256 Kbits
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 1.8V 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 25LC256X-E/ST features the following pin configuration: 1. VCC - Power supply 2. MISO - Master In Slave Out (SPI communication) 3. NC - Not connected 4. GND - Ground 5. MOSI - Master Out Slave In (SPI communication) 6. SCK - Serial Clock (SPI communication) 7. CS - Chip Select (SPI communication) 8. HOLD - Hold input (for SPI operation)

Functional Features

• Byte and Page Write Operations
• Sequential Read Operation
• Self-timed Write Cycle
• Hardware Write Protection
• Unparalleled Endurance

Advantages

• Compact form factor
• Low power consumption
• High reliability and endurance
• Flexible interface options
• Robust hardware write protection

Disadvantages

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

Working Principles

The 25LC256X-E/ST operates based on the principles of EEPROM technology, utilizing floating gate transistors to store charge and retain data even when the power is removed. The SPI interface allows for efficient communication with the host system, enabling seamless data transfer and storage operations.

Detailed Application Field Plans

The 25LC256X-E/ST finds extensive application in various fields, including: - Automotive: for storing vehicle parameters and sensor data - Industrial Control Systems: for configuration storage and event logging - Consumer Electronics: for firmware storage and parameter settings - Medical Devices: for data logging and calibration storage

Detailed and Complete Alternative Models

Some alternative models to the 25LC256X-E/ST include: - AT24C256C - CAT24C256 - M95M02

In summary, the 25LC256X-E/ST offers a reliable and compact solution for non-volatile data storage in a wide range of electronic applications, making it a versatile choice for designers and engineers seeking dependable memory solutions.

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