AT25256W-10SC-2.7

Product Overview

Category

AT25256W-10SC-2.7 belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile memory: The AT25256W-10SC-2.7 retains data even when power is removed.
• High storage capacity: This EEPROM has a storage capacity of 256 kilobits (32 kilobytes).
• Serial interface: It utilizes a serial communication protocol for data transfer.
• Low power consumption: The AT25256W-10SC-2.7 operates at low power levels, making it suitable for battery-powered devices.

Package

The AT25256W-10SC-2.7 is available in a small surface-mount package, which facilitates easy integration into compact electronic designs.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data persistence even during power cycles.

Packaging/Quantity

The AT25256W-10SC-2.7 is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Operating voltage: 2.7V - 5.5V
• Operating temperature range: -40°C to +85°C
• Interface: SPI (Serial Peripheral Interface)
• Memory organization: 32,768 x 8 bits
• Write endurance: 1 million write cycles
• Data retention: 100 years

Detailed Pin Configuration

The AT25256W-10SC-2.7 features an 8-pin package with the following pin configuration:

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

Functional Features

• Byte-level Read/Write: Allows individual bytes to be read from or written to the memory.
• Sequential Read: Supports continuous reading of multiple bytes, increasing data transfer efficiency.
• Software Protection: Provides a write protection mechanism to prevent accidental modification of stored data.
• Chip Erase: Enables erasing of the entire memory content for bulk data removal.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data persistence.
• Compact package size facilitates integration into various electronic designs.
• Low power consumption extends battery life in portable devices.
• High write endurance allows frequent data updates without compromising reliability.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Slower data transfer rate compared to some other memory types.
• Vulnerable to electromagnetic interference due to its small form factor.

Working Principles

The AT25256W-10SC-2.7 utilizes EEPROM technology, which employs floating-gate transistors to store and retrieve data. When writing data, an electrical charge is applied to the floating gate, altering its threshold voltage. This change determines whether the transistor represents a logical 0 or 1. During read operations, the stored charge is measured to determine the stored data.

Detailed Application Field Plans

The AT25256W-10SC-2.7 finds applications in various fields, including:

1. Automotive electronics: Used for storing configuration data, firmware, and calibration settings in automotive control modules.
2. Industrial automation: Employed in programmable logic controllers (PLCs) for storing program code and critical data.
3. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for data storage and firmware updates.
4. Medical devices: Utilized for storing patient data, device configurations, and firmware in medical equipment.

Detailed and Complete Alternative Models

1. AT25DF321A: A 32-megabit serial flash memory with similar pin configuration and SPI interface.
2. CAT24C256: A 256-kilobit I2C EEPROM offering byte-level read/write operations.
3. M93C86: A 16-kilobit Microwire EEPROM suitable for low-power applications.

These alternative models provide similar functionality to the AT25256W-10SC-2.7 and can be considered based on specific design requirements.

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