AT45DB021E-UUN-T

Product Overview

• Category: Integrated Circuit
• Use: Data Storage
• Characteristics: Non-volatile, Serial Interface, Low Power Consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Flash Memory
• 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: -40°C to +85°C
• Data Retention: Up to 20 years
• Program/Erase Cycles: 10,000 cycles

Pin Configuration

The AT45DB021E-UUN-T has the following pin configuration:

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

Functional Features

• Non-volatile storage: The AT45DB021E-UUN-T retains data even when power is disconnected.
• Serial Interface: It uses SPI for communication with a microcontroller or other devices.
• Low Power Consumption: The device operates at low power levels, conserving energy.

Advantages and Disadvantages

Advantages

• Compact size and lightweight due to the small outline package.
• High-speed data transfer using the serial interface.
• Wide operating temperature range allows usage in various environments.
• Long data retention period ensures data integrity over extended periods.

Disadvantages

• Limited memory capacity compared to higher-end flash memory devices.
• Limited program/erase cycles may restrict certain applications.

Working Principles

The AT45DB021E-UUN-T is based on flash memory technology. It stores data in a non-volatile manner, meaning the data remains intact even when power is disconnected. The device utilizes a serial interface, specifically the Serial Peripheral Interface (SPI), to communicate with external devices. This allows for easy integration into microcontroller-based systems. The low power consumption of the device makes it suitable for battery-powered applications.

Detailed Application Field Plans

The AT45DB021E-UUN-T finds application in various fields, including:

1. Consumer Electronics: Used in digital cameras, MP3 players, and portable gaming devices for data storage.
2. Industrial Automation: Employed in control systems and data loggers for storing critical information.
3. Automotive: Integrated into infotainment systems, navigation units, and engine management systems for data storage.
4. Medical Devices: Utilized in medical equipment for storing patient data and system configurations.
5. Internet of Things (IoT): Incorporated into IoT devices for data logging and firmware updates.

Detailed and Complete Alternative Models

1. AT45DB011D-SSHN-T: 1 Megabit (128 Kilobytes) flash memory with SPI interface.
2. AT45DB041D-SUHN-T: 4 Megabit (512 Kilobytes) flash memory with SPI interface.
3. AT45DB081D-MUHN-T: 8 Megabit (1 Megabyte) flash memory with SPI interface.
4. AT45DB161D-SUHN-T: 16 Megabit (2 Megabytes) flash memory with SPI interface.
5. AT45DB321D-SUHN-T: 32 Megabit (4 Megabytes) flash memory with SPI interface.

These alternative models offer different memory capacities to suit specific application requirements.

Word count: 345 words