AT25DF021A-XMHN-B

Product Overview

Category: Integrated Circuit (IC)

Use: The AT25DF021A-XMHN-B is a serial flash memory IC that provides non-volatile storage for various electronic devices. It is commonly used in applications where reliable and fast data storage is required.

Characteristics: - High-speed data transfer - Low power consumption - Wide operating voltage range - Small form factor - Durable and reliable

Package: The AT25DF021A-XMHN-B is available in an industry-standard 8-pin SOIC package, which ensures compatibility with a wide range of devices.

Essence: This IC is designed to store and retrieve digital information reliably and efficiently. It offers a compact and cost-effective solution for data storage needs in various electronic devices.

Packaging/Quantity: The AT25DF021A-XMHN-B is typically sold in reels or tubes containing multiple units, making it suitable for high-volume production.

Specifications

• Memory Size: 2 Megabits (256 Kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 2.7V to 3.6V
• Data Transfer Rate: Up to 75 MHz
• Erase/Program Cycle Endurance: 100,000 cycles
• Data Retention: Up to 20 years
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AT25DF021A-XMHN-B features the following pin configuration:

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

Functional Features

• High-Speed Data Transfer: The AT25DF021A-XMHN-B supports a fast data transfer rate of up to 75 MHz, enabling quick read and write operations.
• Flexible Interface: It utilizes the widely adopted Serial Peripheral Interface (SPI), allowing easy integration with various microcontrollers and other devices.
• Reliable Data Storage: With a high endurance of 100,000 erase/program cycles and data retention of up to 20 years, this IC ensures long-term reliability for critical data storage applications.
• Low Power Consumption: The AT25DF021A-XMHN-B is designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - High-speed data transfer enables efficient read and write operations. - Wide operating voltage range allows compatibility with different systems. - Compact form factor saves space in electronic devices. - Low power consumption prolongs battery life. - Durable and reliable memory storage solution.

Disadvantages: - Limited storage capacity compared to higher-capacity flash memory options. - Lack of built-in security features for data protection.

Working Principles

The AT25DF021A-XMHN-B operates based on the principles of flash memory technology. It uses floating-gate transistors to store digital information as electrical charges. These charges can be programmed or erased using specific voltage levels applied to the memory cells. The stored data can be accessed by sending commands through the SPI interface.

Detailed Application Field Plans

The AT25DF021A-XMHN-B finds application in various electronic devices, including but not limited to: - Consumer electronics (e.g., smartphones, tablets, digital cameras) - Automotive systems (e.g., infotainment systems, instrument clusters) - Industrial equipment (e.g., control systems, data loggers) - Medical devices (e.g., patient monitoring systems, diagnostic equipment) - Communication devices (e.g., routers, modems)

Detailed and Complete Alternative Models

1. AT25DF041A-XMHN-B: 4 Megabit (512 Kilobytes) serial flash memory IC.
2. AT25DF081A-XMHN-B: 8 Megabit (1 Megabyte) serial flash memory IC.
3. AT25DF161A-XMHN-B: 16 Megabit (2 Megabytes) serial flash memory IC.
4. AT25DF321A-XMHN-B: 32 Megabit (4 Megabytes) serial flash memory IC.
5. AT25DF641A-XMHN-B: 64 Megabit (8 Megabytes) serial flash memory IC.

These alternative models offer increased storage capacity while maintaining similar characteristics and compatibility with the AT25DF021A-XMHN-B.

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