25LC256T-M/MF

Product Overview

Category

The 25LC256T-M/MF 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 other embedded systems.

Characteristics

• Capacity: 256 kilobits (32 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Low power consumption
• High-speed read and write operations
• Reliable data retention
• Wide operating voltage range

Package

The 25LC256T-M/MF is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for critical data in electronic devices.

Packaging/Quantity

The 25LC256T-M/MF is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage Range: 2.5V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Maximum Clock Frequency: 10 MHz
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 25LC256T-M/MF has the following pin configuration:

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

Functional Features

• Byte-level read and write operations
• Sequential read and write operations
• Page erase and write operations
• Software write protection
• Hardware write protection
• Write enable latch
• Power-saving standby mode
• Fast write cycle time

Advantages and Disadvantages

Advantages

• Compact package size
• Low power consumption
• High-speed data transfer
• Wide operating voltage range
• Reliable data retention
• Flexible write protection options

Disadvantages

• Limited storage capacity compared to other EEPROM chips
• Requires an external microcontroller or interface for communication

Working Principles

The 25LC256T-M/MF utilizes the Serial Peripheral Interface (SPI) protocol for communication with a host device. It stores data in non-volatile memory cells that can be electrically erased and reprogrammed. The chip operates by receiving commands and data from the host device through the SPI interface, and it performs read, write, and erase operations accordingly.

Detailed Application Field Plans

The 25LC256T-M/MF is widely used in various applications, including but not limited to:

1. Microcontrollers: Used for storing program code, configuration settings, and calibration data.
2. Sensors: Used for storing calibration data, sensor parameters, and event logs.
3. Industrial Control Systems: Used for storing critical system parameters, configuration data, and event logs.
4. Automotive Electronics: Used for storing vehicle-specific data, firmware updates, and diagnostic information.
5. Consumer Electronics: Used for storing user preferences, device settings, and firmware updates.

Detailed and Complete Alternative Models

• 25LC512: Offers double the storage capacity (512 kilobits) compared to the 25LC256T-M/MF.
• 25AA256: Similar capacity and functionality, but uses the I2C (Inter-Integrated Circuit) interface instead of SPI.
• 24LC256: Similar capacity and functionality, but operates at a lower voltage range (1.8V to 5.5V).

In conclusion, the 25LC256T-M/MF is a reliable and versatile Serial EEPROM chip that provides non-volatile data storage for various electronic devices. With its compact size, low power consumption, and high-speed operations, it offers an efficient solution for applications requiring small to medium-sized data storage.