AT25640B-MAHL-E

Product Overview

Category

AT25640B-MAHL-E belongs to the category of non-volatile memory devices.

Use

This product is primarily used for data storage in various electronic devices such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The AT25640B-MAHL-E retains stored data even when power is removed.
• High capacity: This device offers a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• Fast access time: The AT25640B-MAHL-E provides quick read and write operations.
• Wide operating voltage range: It can operate within a voltage range of 1.8V to 5.5V.

Package and Quantity

The AT25640B-MAHL-E is available in a compact SOP-8 package. Each package contains one unit of the device.

Specifications

• Memory capacity: 256 kilobits (32 kilobytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating voltage: 1.8V - 5.5V
• Operating temperature range: -40°C to +85°C
• Data retention: Up to 100 years
• Endurance: 1 million write cycles

Pin Configuration

The AT25640B-MAHL-E has eight pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. Chip Select (CS): Used to enable or disable the device.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Transfers data from the microcontroller to the device.
4. Serial Data Output (SO): Transfers data from the device to the microcontroller.
5. Write Protect (WP): Enables or disables write protection.
6. VCC: Power supply voltage.
7. Ground (GND): Ground reference.
8. Hold (HOLD): Suspends ongoing operations temporarily.

Functional Features

• Byte and Page Write Operations: The AT25640B-MAHL-E supports both byte and page write operations, allowing flexible data storage.
• Sequential Read: It enables sequential read operations, enhancing data retrieval efficiency.
• Software Protection: The device offers software protection features to prevent unauthorized access to stored data.
• Hardware Write Protection: The write protect pin (WP) can be used to enable hardware write protection, ensuring data integrity.
• High Reliability: With a long data retention period and high endurance, the AT25640B-MAHL-E ensures reliable data storage.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Low power consumption extends battery life.
• Fast access time enhances overall system performance.
• Wide operating voltage range allows compatibility with different devices.

Disadvantages

• Limited storage capacity compared to other non-volatile memory options.
• Higher cost per kilobit compared to larger capacity memory devices.

Working Principles

The AT25640B-MAHL-E utilizes the Serial Peripheral Interface (SPI) protocol for communication with the microcontroller. It stores data in non-volatile memory cells that retain information even when power is removed. The device can be accessed for both read and write operations using the appropriate control signals.

Application Field Plans

The AT25640B-MAHL-E finds applications in various fields, including: 1. Automotive electronics: Used for storing configuration data, firmware updates, and event logging. 2. Industrial automation: Enables data storage for process control systems, sensor calibration, and equipment monitoring. 3. Consumer electronics: Utilized in devices such as smart TVs, set-top boxes, and gaming consoles for storing user preferences and system settings. 4. Medical devices: Stores patient data, device configurations, and firmware updates in medical equipment.

Alternative Models

Several alternative models with similar functionality to the AT25640B-MAHL-E are available in the market. Some notable alternatives include: - AT25SF041: Offers a higher storage capacity of 4 megabits (512 kilobytes). - AT25256A: Provides double the storage capacity of the AT25640B-MAHL-E, with 512 kilobits (64 kilobytes). - AT25080B: A lower capacity option with