AT25080B-PU

Product Overview

Category

AT25080B-PU belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

This product is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile memory: The AT25080B-PU retains data even when power is removed.
• High storage capacity: This chip has a storage capacity of 8 kilobits (1 kilobyte).
• Serial interface: It communicates using the Serial Peripheral Interface (SPI) protocol.
• Low power consumption: The AT25080B-PU operates at low power levels, making it suitable for battery-powered devices.

Package

The AT25080B-PU comes in an 8-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even during power cycles.

Packaging/Quantity

The AT25080B-PU is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory capacity: 8 kilobits (1024 bytes)
• Operating voltage: 2.7V to 5.5V
• Interface: SPI (Serial Peripheral Interface)
• Maximum clock frequency: 20 MHz
• Write endurance: 1 million write cycles
• Data retention: 100 years

Pin Configuration

The AT25080B-PU has the following 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-level Read and Write: The AT25080B-PU allows individual bytes to be read from or written to the memory.
• Block Write Protection: It supports write protection for specific blocks of memory, preventing accidental modification.
• Software and Hardware Protection: The chip provides options for both software and hardware-based write protection.
• Sequential Read: It enables sequential reading of multiple bytes, reducing access time.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity during power cycles.
• High storage capacity in a compact package.
• Low power consumption extends battery life.
• Support for write protection enhances data security.
• Sequential read feature improves access speed.

Disadvantages

• Limited storage capacity compared to other EEPROM variants.
• Relatively slower write speeds compared to other memory technologies.

Working Principles

The AT25080B-PU utilizes electrically erasable programmable read-only memory technology. It stores data by trapping charges within floating gate transistors. To write data, a high voltage is applied to the gate, allowing electrons to tunnel through the insulating layer and modify the charge. Reading data involves sensing the charge level in each memory cell.

Detailed Application Field Plans

The AT25080B-PU finds applications in various fields, including: 1. Automotive electronics: Used for storing vehicle configuration data and event logs. 2. Industrial automation: Employed for parameter storage in programmable logic controllers (PLCs). 3. Consumer electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for firmware storage. 4. Medical devices: Used for storing patient data, device configurations, and calibration information.

Detailed and Complete Alternative Models

1. AT25040B-PU: A lower capacity variant with 4 kilobits of memory.
2. AT25128B-PU: A higher capacity variant with 128 kilobits of memory.
3. AT24C02: An I2C-based EEPROM chip with similar storage capacity.

These alternative models provide options based on specific requirements, such as storage capacity and interface compatibility.

In conclusion, the AT25080B-PU is a reliable Serial EEPROM chip that offers non-volatile storage, high capacity, and low power consumption. Its functional features, advantages, and application versatility make it suitable for various electronic devices across different industries.

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