AT45DB021E-SHNHC-T

Introduction

The AT45DB021E-SHNHC-T belongs to the category of serial interface DataFlash® devices and is commonly used for data storage in various electronic applications. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Serial Interface DataFlash® Device
• Use: Data Storage
• Characteristics: High-speed, Low-power, Serial Interface
• Package: 8-lead SOIC, 8-pad UDFN
• Essence: Non-volatile memory
• Packaging/Quantity: Tape & Reel (3000 units per reel)

Specifications

• Memory Size: 2 Megabits
• Interface: SPI
• Operating Voltage: 2.7V - 3.6V
• Operating Temperature: -40°C to +85°C
• Data Retention: 20 years
• Page Size: 256 bytes
• Block Size: 264 pages

Detailed Pin Configuration

The AT45DB021E-SHNHC-T has a standard 8-pin configuration with pins for power supply, SPI interface, and control signals.

Functional Features

• Serial Interface: Supports SPI for high-speed data transfer.
• Low Power Consumption: Ideal for battery-powered applications.
• Flexible Sector Architecture: Enables efficient data storage and retrieval.
• Security Features: Includes hardware and software protection of stored data.

Advantages and Disadvantages

• Advantages:
  • High-speed data transfer
  • Low power consumption
  • Flexible sector architecture
  • Security features
• Disadvantages:
  • Limited memory size compared to other options
  • Higher cost per bit of storage

Working Principles

The AT45DB021E-SHNHC-T utilizes a combination of flash memory and SPI interface to store and retrieve data. When connected to a microcontroller or host system, it communicates through the SPI interface to read from or write to its non-volatile memory.

Detailed Application Field Plans

• Embedded Systems: Used for program storage in microcontroller-based systems.
• Consumer Electronics: Employed in digital cameras, portable media players, and gaming devices for data storage.
• Industrial Automation: Utilized for storing configuration data and event logs in industrial control systems.

Detailed and Complete Alternative Models

• AT25DF021A: Offers similar functionality with a smaller memory size.
• W25Q16JV: Provides higher memory capacity with comparable performance.

In conclusion, the AT45DB021E-SHNHC-T is a versatile serial interface DataFlash® device suitable for various data storage applications, offering high-speed operation, low power consumption, and flexible sector architecture. Its working principles, advantages, and detailed application field plans demonstrate its significance in the realm of electronic devices.

Word Count: 410