AT25DF021-MHF-T

Product Overview

• Category: Integrated Circuit
• Use: Non-volatile Serial Flash Memory
• Characteristics: High-performance, low-power consumption, small form factor
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Provides reliable and fast non-volatile memory storage for various electronic devices
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 2 Megabits (256 Kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 100,000 cycles
• Data Retention: 20 years
• Page Size: 256 bytes
• Sector Size: 4 kilobytes
• Erase Time: 35 milliseconds (typical)

Pin Configuration

The AT25DF021-MHF-T has 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 using SPI interface
• Low power consumption in both active and standby modes
• Sector erase and page program operations for efficient memory management
• Software and hardware write protection options
• Deep power-down mode for further power savings
• Fast read access time for quick data retrieval

Advantages and Disadvantages

Advantages

• Compact package size allows for easy integration into space-constrained designs
• High-performance data transfer enables fast system operation
• Low power consumption extends battery life in portable devices
• Reliable and durable non-volatile memory storage
• Wide operating temperature range for versatile applications

Disadvantages

• Limited memory size compared to larger flash memory options
• Erase time may be relatively slow for certain applications requiring frequent data updates

Working Principles

The AT25DF021-MHF-T utilizes the Serial Peripheral Interface (SPI) to communicate with the host microcontroller or system. It stores data in non-volatile memory cells, which retain information even when power is disconnected. The SPI interface allows for high-speed data transfer between the device and the host, enabling efficient read and write operations.

Detailed Application Field Plans

The AT25DF021-MHF-T is widely used in various electronic devices that require reliable and fast non-volatile memory storage. Some of its common application fields include:

1. Consumer Electronics: Used in smart TVs, set-top boxes, and digital cameras for firmware storage and data logging.
2. Automotive Systems: Employed in car infotainment systems, instrument clusters, and navigation devices for storing configuration data and software updates.
3. Industrial Control: Utilized in programmable logic controllers (PLCs), industrial automation systems, and robotics for storing program code and critical data.
4. Medical Devices: Integrated into medical equipment such as patient monitors and diagnostic devices for data storage and firmware updates.
5. IoT Devices: Incorporated into Internet of Things (IoT) devices like sensors, smart meters, and wearable devices for data logging and firmware storage.

Detailed and Complete Alternative Models

1. AT25DF041A-MHF-T: 4 Megabit (512 Kilobytes) Serial Flash Memory with similar features and package.
2. AT25SF081-MHF-T: 8 Megabit (1 Megabyte) Serial Flash Memory with extended memory capacity.
3. AT25DL161-MHF-T: 16 Megabit (2 Megabytes) Serial Flash Memory with larger storage space.

These alternative models offer different memory sizes to cater to various application requirements while maintaining similar characteristics and package options.

Word count: 529 words