AT25256W-10SI

Product Overview

Category

AT25256W-10SI 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 retains 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 operates at low power levels, making it suitable for battery-powered devices.

Package

The AT25256W-10SI is available in a small form factor package, typically a SOIC (Small Outline Integrated Circuit) package. This package ensures easy integration into various circuit designs.

Essence

The essence of AT25256W-10SI lies in its ability to provide reliable and non-volatile data storage in a compact and energy-efficient package.

Packaging/Quantity

These chips are usually supplied in reels or tubes, with quantities varying depending on the manufacturer's specifications. Common quantities range from a few hundred to several thousand units per reel/tube.

Specifications

• Storage Capacity: 256 kilobits (32 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The AT25256W-10SI chip has a standard pin configuration, as follows:

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. Ground (GND)
7. Power Supply (VCC)
8. Hold (/HOLD)

Functional Features

• High-speed data transfer: The AT25256W-10SI supports fast serial communication, enabling quick read and write operations.
• Hardware write protection: The chip includes a write protect pin (/WP) that can be used to prevent accidental modification of stored data.
• Flexible voltage range: It operates within a wide voltage range, allowing compatibility with various systems.
• Low standby current: The chip consumes minimal power in standby mode, contributing to energy efficiency.

Advantages and Disadvantages

Advantages

• Compact size and easy integration into circuit designs.
• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for storing critical information.
• Low power consumption extends battery life in portable devices.

Disadvantages

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

Working Principles

The AT25256W-10SI utilizes the Serial Peripheral Interface (SPI) protocol for communication. It stores data in an array of memory cells, which can be electrically erased and reprogrammed. When data needs to be written or read, the chip communicates with the host device through the SPI interface, transferring data bit by bit.

Detailed Application Field Plans

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

1. Microcontrollers: Used for storing program code, configuration settings, and calibration data.
2. Computers: Employed in BIOS chips, expansion cards, and embedded systems for storing system parameters and firmware.
3. Consumer Electronics: Used in devices like smart TVs, set-top boxes, and gaming consoles for data storage and firmware updates.

Detailed and Complete Alternative Models

1. AT25DF321A: A similar Serial EEPROM chip with a larger storage capacity of 32 megabits (4 megabytes).
2. AT24C256: Another Serial EEPROM chip with the same storage capacity but utilizing an I2C interface instead of SPI.

These alternative models offer different features and interfaces, providing flexibility for various design requirements.

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