AT45DB041B-SI-2.5

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Data Flash Memory

Characteristics: - Non-volatile memory - Serial interface - High-speed data transfer - Low power consumption

Package: SOIC (Small Outline Integrated Circuit)

Essence: The AT45DB041B-SI-2.5 is a data flash memory IC that provides non-volatile storage for various electronic devices.

Packaging/Quantity: The AT45DB041B-SI-2.5 is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Memory Size: 4 Megabits (512 Kbytes)
• Interface: Serial Peripheral Interface (SPI)
• Supply Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years
• Endurance: 10,000 write cycles

Detailed Pin Configuration

The AT45DB041B-SI-2.5 has a total of 8 pins, which are as follows:

1. Chip Select (/CS) - Active low input used to enable the device.
2. Serial Clock (SCK) - Input for synchronizing data transfer.
3. Serial Data Input (SI) - Input for shifting data into the device.
4. Serial Data Output (SO) - Output for shifting data out of the device.
5. Write Protect (/WP) - Input used to protect the memory from being written.
6. Reset (/RESET) - Input used to reset the device.
7. VCC - Power supply voltage.
8. Ground (GND) - Ground reference.

Functional Features

• Page Program Operation: Allows individual bytes or full pages to be programmed.
• Continuous Read Mode: Enables sequential reading of data from the memory.
• Sector Erase Operation: Erases a specific sector of memory.
• Block Erase Operation: Erases a block of memory.
• Chip Erase Operation: Erases the entire memory array.

Advantages and Disadvantages

Advantages: - Non-volatile storage ensures data retention even when power is lost. - Serial interface allows for easy integration with various microcontrollers. - High-speed data transfer enables efficient read/write operations. - Low power consumption extends battery life in portable devices.

Disadvantages: - Limited memory size compared to other flash memory options. - Limited endurance of 10,000 write cycles may be a constraint in certain applications.

Working Principles

The AT45DB041B-SI-2.5 utilizes a combination of floating gate and control gate transistors to store data. The memory cells are organized into sectors and blocks, which can be individually programmed or erased. Data is transferred to and from the device using the Serial Peripheral Interface (SPI) protocol.

Detailed Application Field Plans

The AT45DB041B-SI-2.5 is commonly used in various electronic devices that require non-volatile storage, such as: - Consumer electronics (e.g., digital cameras, MP3 players) - Automotive systems (e.g., infotainment systems, instrument clusters) - Industrial equipment (e.g., data loggers, control systems) - Medical devices (e.g., patient monitors, diagnostic equipment)

Detailed and Complete Alternative Models

1. AT45DB081E-SHN-T: 8 Megabit (1 Mbyte) Data Flash Memory with SPI interface.
2. AT45DB161E-SHN-T: 16 Megabit (2 Mbyte) Data Flash Memory with SPI interface.
3. AT45DB321E-SHN-T: 32 Megabit (4 Mbyte) Data Flash Memory with SPI interface.
4. AT45DB641E-SHN-T: 64 Megabit (8 Mbyte) Data Flash Memory with SPI interface.

These alternative models offer higher memory capacities while maintaining similar characteristics and functionality to the AT45DB041B-SI-2.5.

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