AT25DF021A-SSHN-B

Product Overview

Category: Integrated Circuit (IC)

Use: The AT25DF021A-SSHN-B is a Serial Flash Memory IC primarily used for data storage in various electronic devices. It provides non-volatile memory storage with high-speed read and write operations.

Characteristics: - Capacity: 2 Megabits (256 Kilobytes) - Interface: Serial Peripheral Interface (SPI) - Voltage Range: 2.7V to 3.6V - Operating Temperature: -40°C to +85°C - Data Retention: Up to 20 years - Erase/Program Cycles: 100,000 cycles

Package: The AT25DF021A-SSHN-B is available in an 8-pin Small-Outline SOIC package, which ensures easy integration into circuit boards.

Essence: This Flash Memory IC allows for reliable and efficient data storage in electronic devices, enabling quick access to stored information.

Packaging/Quantity: The AT25DF021A-SSHN-B is typically sold in reels containing 2500 units per reel.

Specifications

• Memory Organization: 256 bytes per page, 4096 pages
• Page Program Time: 0.5ms typical
• Sector Erase Time: 0.1s typical
• Chip Erase Time: 10s typical
• Maximum Clock Frequency: 66MHz
• Deep Power-down Mode for low power consumption

Pin Configuration

The AT25DF021A-SSHN-B 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 the Serial Peripheral Interface (SPI)
• Efficient page programming and sector/chip erasing capabilities
• Write protection and hold functionalities for enhanced data security
• Deep Power-down Mode to minimize power consumption during idle periods

Advantages and Disadvantages

Advantages: - Compact package size for easy integration into electronic devices - High-speed read and write operations for quick data access - Reliable and durable non-volatile memory storage - Low power consumption in Deep Power-down Mode

Disadvantages: - Limited storage capacity compared to larger Flash Memory ICs - Relatively slower erase and program times compared to some other models

Working Principles

The AT25DF021A-SSHN-B utilizes the Serial Peripheral Interface (SPI) to communicate with a microcontroller or host device. 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 IC and the host device, enabling efficient read and write operations.

Detailed Application Field Plans

The AT25DF021A-SSHN-B is commonly used in various applications, including but not limited to: 1. Consumer Electronics: Smartphones, tablets, digital cameras 2. Automotive: Infotainment systems, instrument clusters 3. Industrial: Data loggers, control systems 4. Medical: Patient monitoring devices, diagnostic equipment 5. Communication: Routers, modems

Detailed and Complete Alternative Models

1. AT25DF041A-SSH-B: 4 Megabit (512 Kilobytes) capacity, similar specifications
2. AT25DF081A-SSH-B: 8 Megabit (1 Megabyte) capacity, similar specifications
3. AT25DF161A-SSH-B: 16 Megabit (2 Megabytes) capacity, similar specifications

These alternative models offer increased storage capacities while maintaining compatibility and similar functionality to the AT25DF021A-SSHN-B.

In conclusion, the AT25DF021A-SSHN-B is a compact and reliable Serial Flash Memory IC that provides efficient data storage capabilities for various electronic devices. Its high-speed operations, low power consumption, and compatibility with alternative models make it a popular choice in the industry.