AT25DF021A-SSHN-T

Product Overview

Category

AT25DF021A-SSHN-T 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: The stored data is retained even when power is removed.
• Serial interface: It communicates with the host device using a serial protocol.
• High storage capacity: The AT25DF021A-SSHN-T has a storage capacity of 2 megabits (256 kilobytes).
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.

Package

The AT25DF021A-SSHN-T is available in a small form factor package, commonly known as an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of AT25DF021A-SSHN-T lies in its ability to provide reliable and high-speed data storage in a compact package.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

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

• High-speed data transfer: The AT25DF021A-SSHN-T supports fast serial communication, enabling quick read and write operations.
• Flexible erase and program operations: It allows individual sectors or the entire memory to be erased and programmed.
• Hardware and software protection mechanisms: Write Protect (/WP) and Hold (/HOLD) pins provide additional security for preventing accidental writes or protecting critical data.

Advantages and Disadvantages

Advantages

• Compact form factor
• Low power consumption
• High-speed data transfer
• Reliable data retention
• Flexible erase and program operations

Disadvantages

• Limited storage capacity compared to other memory technologies
• Relatively higher cost per unit compared to some alternative models

Working Principles

The AT25DF021A-SSHN-T 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 removed. The SPI interface allows for high-speed data transfer between the host device and the flash memory chip.

Detailed Application Field Plans

The AT25DF021A-SSHN-T finds applications in various electronic devices, including but not limited to: - Consumer electronics - Automotive systems - Industrial control systems - Medical devices - Communication equipment

Detailed and Complete Alternative Models

1. AT25DF041A-SSH-B: 4 Megabits (512 Kilobytes) capacity, similar characteristics and package as AT25DF021A-SSHN-T.
2. MX25L2006EZNI-12G: 2 Megabits (256 Kilobytes) capacity, compatible interface, different package (8-pin SOP).

These alternative models offer similar functionality and can be considered as substitutes for the AT25DF021A-SSHN-T, depending on specific requirements and compatibility with the host device.

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