25AA040AX-I/ST

Product Overview

Category:

The 25AA040AX-I/ST belongs to the category of serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use:

It is 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
• High reliability
• Small form factor

Package:

The 25AA040AX-I/ST is available in a small outline package (SOIC) with a specified temperature range for operation.

Essence:

This chip provides reliable and efficient non-volatile memory storage for electronic devices, offering a balance of performance and low power consumption.

Packaging/Quantity:

The 25AA040AX-I/ST is typically supplied in tape and reel packaging, with quantities varying based on customer requirements.

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: 100 years

Detailed Pin Configuration

The 25AA040AX-I/ST features a standard 8-pin SOIC package with the following pin configuration: 1. Chip Select (/CS) 2. Serial Clock (SCK) 3. Serial Data Input/Output (SI/SO) 4. Ground (GND) 5. Not Connected (NC) 6. Not Connected (NC) 7. Serial Data Output (SO) 8. Power Supply (VCC)

Functional Features

• Byte and Page Write Modes
• Self-Timed Write Cycle
• Enhanced ESD Protection
• Sequential Reads
• Unrestricted Writes
• Partial Page Writes

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited storage capacity compared to larger EEPROM chips
• Slower write speeds compared to some other memory technologies

Working Principles

The 25AA040AX-I/ST operates by utilizing the SPI interface to communicate with the host device. It stores data in a non-volatile manner, allowing for reliable and long-term retention of information.

Detailed Application Field Plans

The 25AA040AX-I/ST is well-suited for a wide range of applications, including: - Consumer Electronics: Smartphones, digital cameras, and portable media players - Industrial Equipment: Automation systems, sensors, and control modules - Automotive: Engine control units, infotainment systems, and instrument clusters

Detailed and Complete Alternative Models

Some alternative models to the 25AA040AX-I/ST include: - 25LC040A from Microchip Technology - AT2504B from Atmel Corporation - M24C04 from STMicroelectronics

In conclusion, the 25AA040AX-I/ST is a versatile serial EEPROM chip that offers reliable non-volatile memory storage for a variety of electronic applications, making it an essential component in modern electronic design and manufacturing.

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