AT25256W-10SI-2.7

Product Overview

Category

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

Use

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

Characteristics

• Non-volatile memory: The AT25256W-10SI-2.7 retains stored data even when power is removed.
• High storage capacity: This chip 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-10SI-2.7 operates at low power levels, making it suitable for battery-powered devices.

Package

The AT25256W-10SI-2.7 is available in a small form factor package, typically a SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact and energy-efficient manner.

Packaging/Quantity

The AT25256W-10SI-2.7 is usually packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Operating voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Interface: SPI (Serial Peripheral Interface)
• Write endurance: 1 million cycles
• Data retention: 100 years

Detailed Pin Configuration

The AT25256W-10SI-2.7 has a standard pin configuration consisting of eight pins:

1. Chip Select (/CS): Used to enable or disable the chip for communication.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Used to input data into the chip.
4. Serial Data Output (SO): Outputs data from the chip.
5. Write Protect (/WP): When pulled low, prevents write operations.
6. VCC: Power supply voltage.
7. Ground (GND): Common ground connection.
8. Hold (/HOLD): Used to pause ongoing operations.

Functional Features

• Byte-level Read/Write: Allows individual bytes of data to be read from or written to the chip.
• Sequential Read: Supports continuous reading of multiple bytes without the need for repeated address input.
• Software Protection: Provides a write protection feature that can be enabled or disabled through software control.
• Chip Erase: Allows the entire memory to be erased in a single operation.
• Block Write Protection: Enables protection of specific memory blocks against accidental writes.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable devices.
• High storage capacity provides ample space for data storage requirements.
• Non-volatile memory ensures data retention even during power loss.
• Versatile interface allows easy integration with various microcontrollers and systems.

Disadvantages

• Limited write endurance may require careful management in applications with frequent write operations.
• Relatively slower write speeds compared to other non-volatile memory technologies.
• Vulnerable to electrical noise and interference, requiring proper shielding and grounding measures.

Working Principles

The AT25256W-10SI-2.7 utilizes EEPROM technology, which allows data to be electrically programmed and erased. It stores data in a grid of memory cells, each containing a floating-gate transistor. By applying appropriate voltages, the charge on the floating gate can be modified, representing either a "0" or "1" bit. The stored data can be read, written, or erased using the serial interface provided.

Detailed Application Field Plans

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

1. Embedded Systems: Used for firmware storage in microcontrollers and system-on-chip devices.
2. Automotive Electronics: Employed for storing vehicle configuration data, mileage records, and other critical information.
3. Industrial Control Systems: Utilized for parameter storage, calibration data, and event logging in industrial automation systems.
4. Consumer Electronics: Integrated into devices such as smart TVs, set-top boxes, and gaming consoles for data storage purposes.

Detailed and Complete Alternative Models

1. AT25DF321A: A similar Serial Flash memory chip with a larger storage capacity of 32 megabits (4 megabytes).
2. AT24C256: A compatible I2C EEPROM chip with the same storage capacity but a different interface.
3. AT93C66A: A smaller Serial EEPROM chip with a storage capacity of 4 kilobits (512 bytes) suitable for low-power applications.

(Note: The above alternative models are just a few examples