AT25FS040N-SH27-B

Product Overview

Category

AT25FS040N-SH27-B belongs to the category of Serial Flash Memory.

Use

This product is primarily used for storing and retrieving digital data in electronic devices.

Characteristics

• Non-volatile memory: The stored data is retained even when power is removed.
• Serial interface: Allows for easy integration with microcontrollers and other digital systems.
• High storage capacity: The AT25FS040N-SH27-B has a capacity of 4 megabits (512 kilobytes).
• Low power consumption: Designed to minimize energy usage, making it suitable for battery-powered devices.

Package

The AT25FS040N-SH27-B is available in a small form factor package, commonly known as SOIC-8 (Small Outline Integrated Circuit).

Essence

The essence of this product lies in its ability to provide reliable and efficient non-volatile storage for various electronic applications.

Packaging/Quantity

The AT25FS040N-SH27-B is typically packaged in reels or tubes, containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Capacity: 4 Megabits (512 Kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 20 years
• Write Endurance: 100,000 cycles

Detailed Pin Configuration

The AT25FS040N-SH27-B follows the standard pin configuration for SPI flash memories:

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

Functional Features

• High-speed data transfer: The SPI interface allows for fast and efficient data communication.
• Sector-based erasure: Enables selective erasure of specific memory sectors, reducing unnecessary data modification.
• Hardware write protection: The /WP pin can be used to protect the memory from accidental writes.
• Deep power-down mode: Reduces power consumption to a minimum when the device is not in use.

Advantages and Disadvantages

Advantages

• Compact form factor and low power consumption make it suitable for portable devices.
• High-speed data transfer enables quick access to stored information.
• Sector-based erasure provides flexibility in managing data storage.

Disadvantages

• Limited storage capacity compared to other flash memory options.
• Requires an external microcontroller or digital system for operation.

Working Principles

The AT25FS040N-SH27-B utilizes the Serial Peripheral Interface (SPI) protocol to communicate with the host system. It stores data in non-volatile memory cells, which retain information even when power is removed. The SPI interface allows for high-speed data transfer between the memory and the host system.

Detailed Application Field Plans

The AT25FS040N-SH27-B is widely used in various electronic applications, including but not limited to: - Consumer electronics: Smartphones, tablets, digital cameras, and portable media players. - Industrial automation: Programmable logic controllers (PLCs), data loggers, and control systems. - Automotive electronics: Infotainment systems, instrument clusters, and engine management units. - Internet of Things (IoT): Connected devices, sensors, and edge computing devices.

Detailed and Complete Alternative Models

1. AT25SF041-SSHD-T: Similar to AT25FS040N-SH27-B, but with a higher storage capacity of 8 megabits (1 megabyte).
2. MX25L4006EZNI-12G: Another SPI flash memory with a capacity of 4 megabits, offering compatibility as an alternative option.
3. W25Q32JVSSIQ: A 32 megabit (4 megabyte) SPI flash memory that provides increased storage capacity for more demanding applications.

These alternative models offer similar functionality and can be considered based on specific project requirements.

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