AT45DB641E-MWHN-Y

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage
• Characteristics: Non-volatile, Serial Flash Memory
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: High-density, low-power, and cost-effective data storage solution
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 64 Megabits (8 Megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Write/Erase Endurance: 100,000 cycles
• Data Retention: 20 years
• Sector Architecture: Uniform 256-byte sectors, 4096 pages
• Page Size: 264 bytes (256 bytes + 8 bytes)
• Erase Time: 4 milliseconds (typical)
• Read Time: 85 microseconds (typical)

Pin Configuration

The AT45DB641E-MWHN-Y has the following pin configuration:

1. VCC - Power Supply
2. SI - Serial Input
3. SO - Serial Output
4. WP - Write Protect
5. HOLD - Hold Input
6. SCK - Serial Clock
7. CS - Chip Select
8. GND - Ground

Functional Features

• Dual-interface: Supports both SPI and RapidS serial interface modes
• Continuous Read Mode: Allows for efficient sequential reading of data
• Flexible Erase Capability: Supports full chip erase or sector/block erase
• Software Protection: Provides software-controlled write protection
• Deep Power-down Mode: Reduces power consumption when not in use
• Status Register: Monitors various device operations and conditions

Advantages and Disadvantages

Advantages: - High-density storage capacity - Low power consumption - Fast read and write operations - Flexible erase options - Software protection feature - Wide operating temperature range

Disadvantages: - Limited number of write/erase cycles - Relatively small page size compared to other flash memory devices - Requires external components for proper operation

Working Principles

The AT45DB641E-MWHN-Y is based on the floating-gate technology, which allows for non-volatile data storage. It utilizes a serial interface to communicate with the host microcontroller or system. The device can be accessed using either SPI or RapidS interface modes.

Data is stored in uniform sectors, each consisting of multiple pages. The user can perform various operations such as reading, writing, erasing, and protecting data using specific commands sent through the serial interface. The status register provides information about the ongoing operations and device conditions.

Detailed Application Field Plans

The AT45DB641E-MWHN-Y is widely used in various applications, including but not limited to:

1. Consumer Electronics: Used for firmware storage in smartphones, tablets, digital cameras, and portable media players.
2. Automotive Systems: Used for storing configuration data, firmware updates, and event logging in automotive electronics.
3. Industrial Control Systems: Used for data logging, configuration storage, and firmware updates in industrial automation and control systems.
4. Medical Devices: Used for storing patient data, firmware updates, and diagnostic information in medical equipment.
5. Communication Systems: Used for firmware storage, configuration data, and software updates in networking devices, routers, and modems.

Detailed and Complete Alternative Models

1. AT25SF041-SSHD-T: 4 Megabit Serial Flash Memory, 8-pin SOIC package.
2. MX25L6433FZNI-10G: 64 Megabit Serial Flash Memory, 8-pin SOIC package.
3. S25FL064LABMFI003: 64 Megabit Serial Flash Memory, 8-pin SOIC package.

These alternative models offer similar functionality and characteristics to the AT45DB641E-MWHN-Y, providing options for different memory sizes and manufacturers.

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