AT26F004-SU

Product Overview

Category

AT26F004-SU belongs to the category of non-volatile memory devices.

Use

This product is primarily used for data storage in various electronic devices such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The AT26F004-SU retains stored data even when power is removed.
• High capacity: It offers a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: The device provides quick access to stored data, ensuring efficient operation.
• Low power consumption: It is designed to consume minimal power during both active and standby modes.

Package

The AT26F004-SU is available in a small outline package (SOP) format. This package ensures easy integration into circuit boards and facilitates efficient heat dissipation.

Essence

The essence of this product lies in its ability to reliably store and retrieve data, making it an essential component in electronic devices that require non-volatile memory.

Packaging/Quantity

The AT26F004-SU is typically packaged in reels or tubes, with each containing a specific quantity of devices. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Capacity: 4 megabits (512 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Supply Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 20 years
• Write Endurance: 100,000 cycles

Detailed Pin Configuration

The AT26F004-SU has a total of 8 pins, each serving a specific purpose:

1. Chip Select (/CS): Used to enable or disable the device for communication.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Used to input data into the device during write operations.
4. Serial Data Output (SO): Outputs data from the device during read operations.
5. Write Protect (/WP): When enabled, prevents accidental writes to the memory.
6. Hold (/HOLD): Pauses ongoing operations without resetting the device.
7. VCC: Power supply voltage input.
8. Ground (GND): Common ground reference.

Functional Features

• High-speed data transfer: The AT26F004-SU supports a maximum clock frequency of 50 MHz, enabling fast data transfer rates.
• Sector-based erase: It allows for selective erasure of specific memory sectors, enhancing flexibility in data management.
• Software and hardware protection: The device offers various protection mechanisms, including software write protection and hardware write protect pin (/WP), ensuring data integrity.
• Low power consumption: The AT26F004-SU is designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Large storage capacity
• Fast access time
• Low power consumption
• Flexible sector-based erase feature
• Reliable data retention

Disadvantages

• Limited endurance (100,000 write cycles)
• Relatively higher cost compared to other memory options

Working Principles

The AT26F004-SU utilizes flash memory technology to store and retrieve data. It employs a Serial Peripheral Interface (SPI) for communication with the host device. During write operations, data is transferred serially from the host to the device, which then stores it in the appropriate memory cells. Similarly, during read operations, data is retrieved from the memory cells and transmitted back to the host device.

Detailed Application Field Plans

The AT26F004-SU finds applications in various fields, including: 1. Microcontrollers: Used for program storage and data logging. 2. Embedded Systems: Provides non-volatile memory for firmware and configuration data. 3. Consumer Electronics: Enables storage of user settings, preferences, and firmware updates in devices such as smart TVs, set-top boxes, and gaming consoles.

Detailed and Complete Alternative Models

1. AT25SF041: A similar flash memory device with a capacity of 4 megabits. It offers comparable features and performance to the AT26F004-SU.
2. MX25L4006E: Another alternative with a capacity of 4 megabits. It supports SPI interface and provides reliable data storage.

These alternative models can be considered based on specific requirements and compatibility with the target system.

In conclusion, the AT26F004-SU is a non-volatile memory device that offers high capacity, fast access time, and low power consumption. Its sector-based erase feature, along with software and hardware protection mechanisms, ensures data integrity. While it has limited endurance and a relatively higher cost, its reliability and flexibility make it suitable for various applications in microcontrollers, embedded systems, and consumer electronics.