AT25640B-MAHL-T

Product Overview

Category

AT25640B-MAHL-T belongs to the category of non-volatile memory chips.

Use

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

Characteristics

• Non-volatile: The AT25640B-MAHL-T retains stored data even when power is disconnected.
• High capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates on low power, making it suitable for battery-powered devices.
• Fast access time: The AT25640B-MAHL-T offers quick read and write operations.
• Wide voltage range: It supports a wide operating voltage range, enhancing compatibility with various systems.

Package

The AT25640B-MAHL-T is available in a compact SOP-8 package, which ensures easy integration into circuit boards.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a small form factor.

Packaging/Quantity

The AT25640B-MAHL-T is typically packaged in reels containing 2500 units.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 1.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 100 years
• Endurance: 1 million write cycles

Detailed Pin Configuration

The AT25640B-MAHL-T features an 8-pin configuration:

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. Ground (GND)
7. VCC (Power Supply)
8. Hold (/HOLD)

Functional Features

• Byte and Page-level Read/Write Operations: The chip allows for efficient data transfer at both byte and page levels.
• Software Protection: The AT25640B-MAHL-T supports software write protection, preventing accidental modification of stored data.
• Sequential Read Mode: This feature enables continuous reading of multiple memory locations without the need for repeated address input.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity in a compact form factor.
• Low power consumption extends battery life.
• Wide operating voltage range enhances compatibility.
• Fast access time improves overall system performance.

Disadvantages

• Limited storage capacity compared to other non-volatile memory options.
• Relatively higher cost per kilobit compared to larger capacity chips.

Working Principles

The AT25640B-MAHL-T utilizes the Serial Peripheral Interface (SPI) protocol for communication with the host device. It stores data in non-volatile memory cells that can be electrically programmed and erased. The chip's control logic manages read and write operations, ensuring reliable data storage and retrieval.

Detailed Application Field Plans

The AT25640B-MAHL-T finds applications in various fields, including: 1. Automotive electronics: Used for storing configuration data, firmware updates, and event logging in automotive systems. 2. Industrial automation: Enables data storage for parameter settings, sensor calibration, and event logging in industrial control systems. 3. Consumer electronics: Utilized in devices such as smartwatches, digital cameras, and portable media players for data storage and firmware updates.

Detailed and Complete Alternative Models

1. AT25DF321A: Offers a higher storage capacity of 32 megabits (4 megabytes) and supports the same SPI interface.
2. AT24C256: Provides a lower storage capacity of 256 kilobits (32 kilobytes) but operates on the I2C (Inter-Integrated Circuit) protocol.

These alternative models cater to different requirements in terms of storage capacity and communication protocols.

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