25AA040A-I/ST

Product Overview

Category

The 25AA040A-I/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
• Low power consumption
• High reliability
• Small form factor

Package

The 25AA040A-I/ST is typically available in a small surface-mount package, making it suitable for compact designs.

Essence

The essence of this product lies in its ability to store data reliably without the need for continuous power supply.

Packaging/Quantity

It is usually supplied in tape and reel packaging with varying quantities based on the manufacturer's specifications.

Specifications

• Memory Capacity: 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 25AA040A-I/ST typically features an 8-pin configuration, including power supply pins, SPI communication pins, and write protection pins.

Functional Features

• SPI interface for simple communication with microcontrollers
• Write protection functionality to prevent accidental data modification
• Low standby current for power-efficient operation

Advantages and Disadvantages

Advantages

• High reliability and long data retention
• Low power consumption
• Compact form factor

Disadvantages

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

Working Principles

The 25AA040A-I/ST operates by utilizing the SPI interface to communicate with a host microcontroller. It stores data in non-volatile memory cells that can be electrically erased and reprogrammed as needed.

Detailed Application Field Plans

This product is widely used in applications such as: - Smart meters - Sensor nodes - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the 25AA040A-I/ST include: - 25LC040A - 25LC080B - 25LC160C

In conclusion, the 25AA040A-I/ST Serial EEPROM chip offers reliable non-volatile data storage in a compact form factor, making it suitable for a wide range of electronic applications.

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