AT45DB041B-SU

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage
• Characteristics: Non-volatile, Serial Interface, Flash Memory
• Package: 8-pin Small Outline Integrated Circuit (SOIC)
• Essence: The AT45DB041B-SU is a 4-megabit (512K x 8) serial interface flash memory, designed for data storage applications.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Memory Size: 4 Megabits (512 Kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: More than 20 years
• Program/Erase Cycles: 10,000 minimum

Pin Configuration

The AT45DB041B-SU has 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

• Serial Interface: Supports SPI protocol for easy integration with microcontrollers and other devices.
• Page Program Operation: Allows programming of data in page mode, enhancing write performance.
• Continuous Read Mode: Enables fast sequential reading of data from the memory.
• Sector Erase Capability: Provides the ability to erase large blocks of memory for efficient data management.
• Software Protection: Offers software-controlled protection against accidental erasure or modification of data.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention even without power. - Serial interface simplifies integration with various systems. - Compact package size allows for space-efficient designs. - High endurance with a minimum of 10,000 program/erase cycles.

Disadvantages: - Limited storage capacity compared to higher-capacity flash memory devices. - Slower write speeds compared to some other flash memory technologies. - Requires external components (microcontroller, etc.) for full functionality.

Working Principles

The AT45DB041B-SU utilizes flash memory technology to store and retrieve data. It employs a serial interface, allowing for easy communication with microcontrollers or other devices. The memory is organized into sectors and pages, which can be individually programmed or erased. Data can be written to the memory using the SPI protocol, and read back using the same interface. The non-volatile nature of flash memory ensures that data remains stored even when power is removed.

Detailed Application Field Plans

The AT45DB041B-SU is commonly used in various applications, including but not limited to:

1. Embedded Systems: Used as non-volatile storage for firmware, configuration data, and log files in microcontroller-based systems.
2. Consumer Electronics: Integrated into devices such as digital cameras, MP3 players, and portable gaming consoles for data storage purposes.
3. Industrial Automation: Employed in industrial control systems for storing critical data, such as sensor readings, event logs, and configuration parameters.
4. Automotive Electronics: Utilized in automotive applications for storing calibration data, fault codes, and other essential information.
5. Medical Devices: Incorporated into medical equipment for data logging, patient monitoring, and firmware storage.

Detailed and Complete Alternative Models

1. AT45DB081D: 8-megabit (1 Megabyte) flash memory with similar features and interface, offering double the storage capacity.
2. AT45DB161D: 16-megabit (2 Megabytes) flash memory with increased storage capacity compared to AT45DB041B-SU.
3. AT45DB321D: 32-megabit (4 Megabytes) flash memory with even higher storage capacity for applications requiring more data storage.

These alternative models provide options for higher storage capacities while maintaining compatibility with the same serial interface and similar functionality.

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