25AA040X/ST

Product Overview

Category:

The 25AA040X/ST belongs to the category of serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use:

It is commonly used for non-volatile data storage in various electronic devices, including consumer electronics, industrial equipment, and automotive applications.

Characteristics:

• Non-volatile memory
• Serial interface
• Low power consumption
• Small form factor

Package:

The 25AA040X/ST is typically available in a small surface-mount package, making it suitable for compact designs.

Essence:

This chip provides reliable and long-term data storage in a wide range of electronic devices.

Packaging/Quantity:

It is often supplied in tape and reel packaging, with quantities varying based on manufacturer specifications.

Specifications

• Memory Size: 4 Kbits
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 25AA040X/ST typically features an 8-pin configuration, including power supply pins, SPI communication pins, and write protection pins.

Functional Features

• Sequential read and write operations
• Software and hardware write protection
• Self-timed programming cycle
• High-speed clock frequency support

Advantages

• Low power consumption
• Compact form factor
• High reliability and endurance
• Wide operating voltage range

Disadvantages

• Limited storage capacity compared to other memory technologies
• Slower write speeds compared to some alternative memory solutions

Working Principles

The 25AA040X/ST operates by utilizing the SPI interface to communicate with the host microcontroller or system. It stores data using electrically programmable memory cells, allowing for non-volatile data retention even when power is removed.

Detailed Application Field Plans

• Consumer Electronics: Used in smart home devices, wearables, and digital cameras for data storage.
• Industrial Equipment: Employed in sensor modules, control systems, and monitoring devices for parameter storage.
• Automotive Applications: Integrated into vehicle control units, infotainment systems, and telematics modules for configuration and calibration data storage.

Detailed and Complete Alternative Models

• AT24C04 from Microchip Technology
• M24C04 from STMicroelectronics
• CAT24C04 from ON Semiconductor

In conclusion, the 25AA040X/ST is a versatile serial EEPROM chip that offers reliable non-volatile data storage for a wide range of electronic applications. Its compact size, low power consumption, and compatibility with the SPI interface make it a popular choice for designers seeking dependable memory solutions.

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