AT25DF641-MWH-Y

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Serial Flash Memory
• Characteristics:
  • High-density storage
  • Low power consumption
  • Fast read and write operations
  • Wide operating voltage range
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Reliable and efficient non-volatile memory solution
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 64 Megabits (8 Megabytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 2.7V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: More than 20 years
• Endurance: 100,000 program/erase cycles
• Page Size: 256 bytes
• Sector Size: 4 kilobytes
• Block Size: 32 kilobytes
• Write Protection: Individual sectors or entire chip

Pin Configuration

The AT25DF641-MWH-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 with SPI interface
• Flexible sector and block erase operations
• Efficient programming and erasing algorithms
• Software and hardware write protection options
• Deep power-down mode for low-power applications
• Automatic page write and erase operations

Advantages

• Large storage capacity for data-intensive applications
• Low power consumption extends battery life
• Fast read and write operations improve system performance
• Wide operating voltage range allows compatibility with various systems
• Reliable data retention ensures long-term storage

Disadvantages

• Limited to serial interface, may not be suitable for parallel communication requirements
• Small package size may limit compatibility with certain designs
• Higher cost compared to lower-density flash memory options

Working Principles

The AT25DF641-MWH-Y is based on the Serial Peripheral Interface (SPI) protocol. It utilizes a combination of floating gate and tunnel oxide technology to store data in non-volatile memory cells. The SPI interface allows for high-speed communication between the IC and the host microcontroller. The memory can be read, written, and erased using specific commands sent through the SPI bus.

Application Field Plans

The AT25DF641-MWH-Y is widely used in various electronic devices and systems, including:

1. Consumer Electronics:

   • Set-top boxes
   • Digital cameras
   • Portable media players

2. Automotive Systems:

   • Infotainment systems
   • Instrument clusters
   • Advanced driver-assistance systems (ADAS)

3. Industrial Equipment:

   • Programmable logic controllers (PLCs)
   • Human-machine interfaces (HMIs)
   • Data loggers

4. Communication Devices:

   • Routers
   • Modems
   • Network switches

Alternative Models

Other alternative models that provide similar functionality to the AT25DF641-MWH-Y include:

1. Winbond W25Q64JVZPIQ
2. Macronix MX25L6433FM2I-10G
3. Microchip SST25VF064C-80-4I-S2AF

These alternatives offer comparable specifications and are compatible with the same SPI interface.

In conclusion, the AT25DF641-MWH-Y is a high-density non-volatile serial flash memory IC. It offers reliable and efficient storage for various electronic devices and systems. With its fast read/write operations, low power consumption, and wide operating voltage range, it provides an excellent solution for data-intensive applications.