AT25DF041A-SH-B

Product Overview

• Category: Flash Memory
• Use: Data storage and retrieval in electronic devices
• Characteristics:
  • Non-volatile memory
  • High-speed data transfer
  • Low power consumption
• Package: SOP (Small Outline Package)
• Essence: Serial Flash Memory
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Memory Size: 4 Megabits (512 Kbytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V to 3.6V
• Operating Temperature: -40°C to +85°C
• Write Protection: Software and Hardware options available
• Data Retention: Minimum 20 years

Pin Configuration

The AT25DF041A-SH-B has a total of 8 pins:

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 read and write operations
• Sector erase and bulk erase functions
• Flexible write protection options
• Continuous read capability
• Deep power-down mode for low-power applications

Advantages

• Compact package size allows for space-saving designs
• Low power consumption extends battery life in portable devices
• High-speed data transfer enhances overall system performance
• Long data retention period ensures reliable storage

Disadvantages

• Limited storage capacity compared to higher-density flash memories
• SPI interface may not be suitable for all applications requiring flash memory

Working Principles

The AT25DF041A-SH-B is based on the Serial Peripheral Interface (SPI) protocol. It utilizes a combination of clock and data signals to enable communication between the flash memory and the host device. The SPI interface allows for high-speed data transfer and efficient control of read, write, and erase operations.

Detailed Application Field Plans

The AT25DF041A-SH-B is commonly used in various electronic devices that require non-volatile memory for data storage and retrieval. Some potential application fields include:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Digital cameras

2. Automotive:

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

3. Industrial:

   • Internet of Things (IoT) devices
   • Industrial automation systems
   • Measurement and control equipment

Alternative Models

1. AT25DF321A-SH-B: 32 Megabit (4 Mbyte) Serial Flash Memory
2. AT25DF641A-SH-B: 64 Megabit (8 Mbyte) Serial Flash Memory
3. AT25DF161-SH-B: 16 Megabit (2 Mbyte) Serial Flash Memory

These alternative models offer different storage capacities to suit varying application requirements.

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