25AA320A-I/ST

Product Overview

Category

The 25AA320A-I/ST belongs to the category of serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

It is commonly used for non-volatile 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 25AA320A-I/ST is typically available in a small surface-mount package, making it suitable for compact designs and automated assembly processes.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for critical data in electronic systems.

Packaging/Quantity

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

Specifications

• Memory Size: 32 Kbit
• 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 25AA320A-I/ST typically features an 8-pin configuration, including power supply pins, SPI communication pins, and write protection pins. The specific pinout can be found in the product datasheet.

Functional Features

• Byte and Page Write Modes
• Sequential Reads
• Self-timed Write Cycle
• Deep Power-down Mode
• Software and Hardware Write Protection

Advantages and Disadvantages

Advantages

• Compact form factor
• Low power consumption
• High reliability and endurance
• Flexible write protection options

Disadvantages

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

Working Principles

The 25AA320A-I/ST operates by utilizing the SPI interface to communicate with the host microcontroller or system. It stores data using electrically isolated floating gates, allowing for non-volatile storage of information.

Detailed Application Field Plans

The 25AA320A-I/ST finds application in a wide range of fields, including: - Automotive Electronics: for storing vehicle parameters and diagnostic information - Industrial Control Systems: for configuration storage and event logging - Consumer Electronics: for firmware storage and parameter settings

Detailed and Complete Alternative Models

Some alternative models to the 25AA320A-I/ST include: - 24AA32A - 25LC320A - AT25080A

These alternatives offer similar functionality and compatibility with the SPI interface, providing flexibility in design and sourcing options.

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