AT45DB321B-RC

Product Overview

Category

AT45DB321B-RC 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 AT45DB321B-RC retains stored data even when power is removed.
• High capacity: This device has a storage capacity of 32 megabits (4 megabytes).
• Serial interface: It utilizes a serial peripheral interface (SPI) for communication with other devices.
• Low power consumption: The AT45DB321B-RC is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT45DB321B-RC is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and high-capacity non-volatile memory storage in a compact form factor.

Packaging/Quantity

The AT45DB321B-RC is typically packaged in reels containing 250 units per reel.

Specifications

• Memory capacity: 32 megabits (4 megabytes)
• 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
• Endurance: 10,000 write cycles per sector

Pin Configuration

The AT45DB321B-RC features an 8-pin SOIC package with 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

• Page program operation: Allows data to be written to the memory in page-sized increments.
• Continuous read mode: Enables sequential reading of data from the memory without the need for repeated commands.
• Sector erase capability: Provides the ability to erase large blocks of memory for efficient data management.
• Software and hardware protection mechanisms: Protects stored data from accidental modification or erasure.

Advantages and Disadvantages

Advantages

• High storage capacity
• Low power consumption
• Compact form factor
• Reliable non-volatile memory

Disadvantages

• Limited endurance compared to some other flash memory technologies
• Relatively slower write speeds compared to certain alternatives

Working Principles

The AT45DB321B-RC utilizes a combination of floating gate and control gate transistors to store data as electrical charges. These charges are trapped within the floating gate, representing binary values that can be read or modified through appropriate commands.

Detailed Application Field Plans

The AT45DB321B-RC finds applications in various electronic devices, including but not limited to: - Consumer electronics (e.g., digital cameras, portable media players) - Automotive systems (e.g., infotainment systems, instrument clusters) - Industrial equipment (e.g., data loggers, control systems) - Communication devices (e.g., routers, modems)

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the AT45DB321B-RC include: - AT25SF041: A 4-megabit serial flash memory device with SPI interface. - MX25L3206E: A 32-megabit serial flash memory device with SPI interface. - S25FL032P: A 32-megabit serial flash memory device with SPI interface.

These alternative models provide comparable features and can be considered as substitutes based on specific requirements.

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