AT25DF641A-MH-Y

Product Overview

• Category: Flash Memory
• Use: Data storage and retrieval in electronic devices
• Characteristics: Non-volatile, high-density, low-power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Serial Peripheral Interface (SPI) Flash memory
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Memory Size: 64 Megabits (8 Megabytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 100,000 cycles
• Data Retention: 20 years
• Page Size: 256 bytes
• Sector Size: 4 kilobytes
• Block Erase Size: 64 kilobytes
• Read/Program Speed: Up to 85 MHz

Pin Configuration

The AT25DF641A-MH-Y has the following pin configuration:

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

Functional Features

• High-speed data transfer using SPI interface
• Flexible erase and program operations at page, sector, and block levels
• Low power consumption for extended battery life
• Wide operating temperature range for various environments
• Reliable data retention for long-term storage
• Hardware and software write protection options
• Easy integration into existing systems with standard SPI interface

Advantages

• Compact package size for space-constrained applications
• High-density storage capacity for data-intensive devices
• Fast read/write speeds for efficient data access
• Low power consumption for energy-efficient operation
• Wide operating temperature range for versatile usage scenarios
• Reliable and durable flash memory technology

Disadvantages

• Limited write endurance compared to other non-volatile memory types
• Relatively higher cost per bit compared to traditional hard drives
• Requires additional circuitry for SPI interface implementation

Working Principles

The AT25DF641A-MH-Y operates based on the Serial Peripheral Interface (SPI) protocol. It uses a combination of clock and data signals to communicate with the host device. The flash memory is organized into pages, sectors, and blocks, allowing for flexible erase and program operations. Data is stored in non-volatile memory cells that retain information even when power is removed.

Application Field Plans

The AT25DF641A-MH-Y is widely used in various electronic devices that require non-volatile data storage and retrieval. Some potential application fields include:

1. Consumer Electronics: Smartphones, tablets, digital cameras
2. Automotive: Infotainment systems, navigation devices
3. Industrial: Embedded systems, control units, sensors
4. Medical: Patient monitoring devices, diagnostic equipment
5. Communication: Routers, modems, network switches

Alternative Models

1. AT25DF321A-MH-Y: 32 Megabit (4 Megabyte) version
2. AT25DF128A-MH-Y: 128 Megabit (16 Megabyte) version
3. AT25DF256A-MH-Y: 256 Megabit (32 Megabyte) version

These alternative models offer different memory sizes to cater to specific application requirements.

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