W25Q40BWSVIG TR

Product Overview

Category

The W25Q40BWSVIG TR belongs to the category of Serial Flash Memory.

Use

This product is primarily used for storing and retrieving data in electronic devices such as computers, smartphones, tablets, and other consumer electronics.

Characteristics

• Non-volatile memory: The W25Q40BWSVIG TR retains stored data even when power is removed.
• High storage capacity: This flash memory chip has a capacity of 4 megabits (512 kilobytes).
• Fast data transfer: It supports high-speed SPI (Serial Peripheral Interface) communication for efficient data transfer.
• Low power consumption: The W25Q40BWSVIG TR is designed to minimize power usage, making it suitable for battery-powered devices.
• Compact package: It comes in a small form factor package, allowing for easy integration into various electronic devices.

Package and Quantity

The W25Q40BWSVIG TR is typically packaged in a surface-mount SOIC (Small Outline Integrated Circuit) package. It is available in tape and reel packaging, with a standard quantity of 2500 units per reel.

Specifications

• Memory Capacity: 4 megabits (512 kilobytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 2.7V - 3.6V
• Data Transfer Rate: Up to 104 MHz
• Erase/Program Time: 0.5 ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-8

Detailed Pin Configuration

The W25Q40BWSVIG TR has an 8-pin configuration as follows:

1. Chip Select (/CS): Used to enable or disable the chip for communication.
2. Serial Clock (SCLK): Provides the clock signal for synchronous data transfer.
3. Serial Data Input (SI): Used to input data into the chip during write operations.
4. Serial Data Output (SO): Outputs data from the chip during read operations.
5. Write Protect (/WP): When this pin is held low, it protects the memory from being written.
6. Hold (/HOLD): Allows the device to be paused during a serial sequence without losing its place.
7. Ground (GND): Connected to the ground reference of the system.
8. Power Supply (VCC): Supplies power to the chip.

Functional Features

• Fast Read: The W25Q40BWSVIG TR supports high-speed read operations, allowing for quick access to stored data.
• Sector Erase: It provides sector erase functionality, enabling selective erasure of specific memory sectors.
• Page Program: This flash memory chip allows for efficient programming of data in individual memory pages.
• Deep Power-down Mode: It features a low-power mode that reduces power consumption when the device is not in use.
• Electronic Signature: The W25Q40BWSVIG TR includes an electronic signature feature that can be used for device identification.

Advantages and Disadvantages

Advantages

• High storage capacity for its compact size.
• Fast data transfer rate for efficient operation.
• Low power consumption, making it suitable for battery-powered devices.
• Sector erase and page program functionalities provide flexibility in data management.
• Electronic signature feature aids in device identification.

Disadvantages

• Limited storage capacity compared to higher-capacity flash memory options.
• Requires an SPI interface for communication, which may not be compatible with all systems.

Working Principles

The W25Q40BWSVIG TR operates based on the principles of flash memory technology. It utilizes floating-gate transistors to store and retrieve data. When data is written, electrical charges are trapped in the floating gate, altering the transistor's behavior. These charges can be erased by applying a high voltage, allowing the transistor to return to its original state and enabling data modification.

Detailed Application Field Plans

The W25Q40BWSVIG TR is widely used in various electronic devices that require non-volatile memory for data storage and retrieval. Some common application fields include:

1. Computer Systems: Used in desktops, laptops, and servers for storing BIOS firmware, system configuration data, and other critical information.
2. Consumer Electronics: Found in smartphones, tablets, digital cameras, and gaming consoles for storing user data, firmware, and software updates.
3. Automotive Electronics: Utilized in automotive systems for storing vehicle parameters, firmware, and diagnostic information.
4. Industrial Control Systems: Integrated into industrial equipment and machinery for storing configuration settings, firmware, and operational data.

Detailed and Complete Alternative Models

• W25Q80BVSNIG TR: 8 megabit (1 megabyte) capacity flash memory chip with similar features and specifications.
• W25Q16JVSNIG TR: 16 megabit