AT25DF021-SSH-B

Product Overview

Category

AT25DF021-SSH-B belongs to the category of Serial Flash Memory.

Use

It is primarily used for storing and retrieving digital data in electronic devices.

Characteristics

• Non-volatile memory: Retains data even when power is turned off.
• Serial interface: Allows for easy integration with microcontrollers and other devices.
• High storage capacity: Offers 2 megabits (256 kilobytes) of memory.
• Low power consumption: Optimized for energy-efficient operation.
• Fast read and write speeds: Enables quick access to stored data.

Package

AT25DF021-SSH-B is available in a small form factor package, suitable for space-constrained applications.

Essence

The essence of AT25DF021-SSH-B lies in its ability to provide reliable and high-performance non-volatile memory storage in a compact package.

Packaging/Quantity

This product is typically packaged in reels or trays, with a quantity of 2500 units per reel/tray.

Specifications

• Memory Size: 2 megabits (256 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Supply Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 20 years
• Endurance: 100,000 program/erase cycles

Detailed Pin Configuration

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

Functional Features

• Sector-based architecture for efficient data organization and management.
• Hardware and software write protection mechanisms to prevent unauthorized modifications.
• Fast page programming and erase operations for quick data updates.
• Deep power-down mode for ultra-low power consumption during standby.

Advantages

• Compact size and low power consumption make it suitable for portable and battery-powered devices.
• High storage capacity allows for storing large amounts of data.
• Serial interface simplifies integration with various microcontrollers and other devices.
• Fast read and write speeds enable efficient data access and updates.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write speeds compared to some alternative models.
• Vulnerable to physical damage, such as electrostatic discharge (ESD), if not handled properly.

Working Principles

AT25DF021-SSH-B utilizes the Serial Peripheral Interface (SPI) protocol to communicate with the host device. It stores data in non-volatile memory cells, which retain information even when power is disconnected. The memory is organized into sectors, allowing for efficient data management and updates. The chip's control pins and internal circuitry facilitate data transfer and storage operations.

Detailed Application Field Plans

AT25DF021-SSH-B finds applications in various electronic devices, including but not limited to: - Consumer electronics: Smartphones, tablets, digital cameras, and gaming consoles. - Industrial equipment: Measurement devices, control systems, and data loggers. - Automotive electronics: Infotainment systems, instrument clusters, and navigation units. - Medical devices: Patient monitors, diagnostic equipment, and medical imaging systems.

Detailed and Complete Alternative Models

1. AT25SF041-SSHD-T: Offers higher storage capacity (4 megabits) and faster write speeds.
2. MX25L12845EMI-10G: Provides larger memory size (16 megabits) and extended temperature range.
3. W25Q64JVZPIQ: Features enhanced security features and wider voltage range support.

These alternative models offer different specifications and features, catering to diverse application requirements.

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