AT45DB321E-MWHF-Y

1. Introduction

The AT45DB321E-MWHF-Y belongs to the category of serial interface DataFlash memories and is widely used in various electronic devices for data storage and retrieval. This entry provides an overview of the basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models of the AT45DB321E-MWHF-Y.

2. Basic Information Overview

• Category: Serial Interface DataFlash Memory
• Use: Data storage and retrieval in electronic devices
• Characteristics: High-speed, low-power, non-volatile, and reliable data storage
• Package: 8-lead SOIC, 8-pad UDFN, and 8-ball VDFN
• Essence: Non-volatile memory with a serial interface
• Packaging/Quantity: Tape and Reel (3000 units per reel)

3. Specifications

• Memory Size: 32 megabits (4 megabytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.7V - 3.6V
• Operating Temperature: -40°C to +85°C
• Data Retention: 20 years
• Page Size: 528 bytes
• Block Erase Time: 18ms (typical)

4. Detailed Pin Configuration

The AT45DB321E-MWHF-Y has a standard 8-pin configuration with pins designated for power supply, SPI communication, and control signals.

| Pin Name | Description | |----------|-------------| | VCC | Power Supply Voltage | | GND | Ground | | SI | Serial Input for SPI Communication | | SO | Serial Output for SPI Communication | | SCK | Serial Clock for SPI Communication | | CS | Chip Select for SPI Communication | | WP | Write Protect Control | | RESET | Reset Input |

5. Functional Features

• High-Speed Operation: Enables fast data transfer and access.
• Low-Power Consumption: Ideal for battery-powered devices.
• Non-Volatile Storage: Retains data even when power is removed.
• Reliable Performance: Ensures data integrity and longevity.

6. Advantages and Disadvantages

Advantages

• Fast data transfer rates
• Low power consumption
• Reliable non-volatile storage
• Compact package options

Disadvantages

• Limited storage capacity compared to larger memory chips
• Higher cost per megabyte compared to some competing technologies

7. Working Principles

The AT45DB321E-MWHF-Y operates by utilizing the SPI interface to communicate with the host microcontroller. It stores and retrieves data in a non-volatile manner, allowing for reliable and persistent storage of critical information.

8. Detailed Application Field Plans

The AT45DB321E-MWHF-Y is commonly used in applications such as: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - IoT (Internet of Things) devices

9. Detailed and Complete Alternative Models

Some alternative models to the AT45DB321E-MWHF-Y include: - AT45DB641E-MWHF-Y: Higher capacity version - AT25SF041-SSHD-T: Smaller capacity, lower-cost option - W25Q32JVSSIQ: Competing product with similar specifications

In conclusion, the AT45DB321E-MWHF-Y is a versatile and reliable serial interface DataFlash memory that finds extensive use in various electronic devices for data storage and retrieval.

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