AT45DB321D-CU

Product Overview

Category

AT45DB321D-CU belongs to the category of flash memory devices.

Use

This product is primarily used for data storage and retrieval in various electronic devices.

Characteristics

• Non-volatile memory: The AT45DB321D-CU retains stored data even when power is removed.
• High capacity: This device has a storage capacity of 32 megabits (4 megabytes).
• Fast data transfer: It supports high-speed data transfer rates, allowing for efficient read and write operations.
• Low power consumption: The AT45DB321D-CU is designed to consume minimal power during operation.
• Reliable performance: It offers reliable data storage and retrieval, ensuring data integrity.

Package

The AT45DB321D-CU is available in a compact and industry-standard 8-pin SOIC package.

Essence

This flash memory device is an essential component for storing and accessing data in electronic systems.

Packaging/Quantity

The AT45DB321D-CU is typically packaged in reels containing a quantity of 250 units.

Specifications

• Memory capacity: 32 megabits (4 megabytes)
• 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: 10,000 program/erase cycles

Detailed 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. Reset (/RESET)
8. Power Supply (VCC)

Functional Features

• Page mode operation: Allows for efficient programming and reading of data in page-sized increments.
• Continuous read mode: Enables sequential reading of multiple pages without the need for readdressing.
• Software and hardware protection: Provides options to protect stored data from accidental modification or erasure.
• Sector erase capability: Allows for erasing large blocks of memory, enhancing flexibility in data management.

Advantages and Disadvantages

Advantages

• High storage capacity
• Fast data transfer rates
• Low power consumption
• Reliable performance
• Flexible data protection options

Disadvantages

• Limited endurance compared to other non-volatile memory technologies
• Relatively higher cost per unit compared to some alternative models

Working Principles

The AT45DB321D-CU utilizes a combination of floating-gate transistors and flash memory technology. It stores data by trapping electric charges within its memory cells. These charges represent binary information that can be accessed and modified through the device's interface.

Detailed Application Field Plans

The AT45DB321D-CU finds applications in various electronic systems, including but not limited to: 1. Consumer electronics (e.g., digital cameras, portable media players) 2. Automotive systems (e.g., infotainment systems, instrument clusters) 3. Industrial control systems (e.g., programmable logic controllers, data loggers) 4. Communication devices (e.g., routers, modems)

Detailed and Complete Alternative Models

1. AT45DB161D-CU: 16 megabit (2 megabyte) flash memory device with similar features and package.
2. AT45DB641D-CU: 64 megabit (8 megabyte) flash memory device with higher storage capacity.

These alternative models offer different storage capacities to cater to varying application requirements.

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