25AA080T-I/SN

Product Overview

Category: Integrated Circuit (IC)

Use: Non-volatile Memory

Characteristics: - Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) - 8 Kbit (1024 x 8) memory size - SPI (Serial Peripheral Interface) communication protocol - Low power consumption - High reliability and endurance - Wide operating voltage range - Small form factor

Package: SOIC (Small Outline Integrated Circuit)

Essence: The 25AA080T-I/SN is a serial EEPROM IC that provides non-volatile memory storage. It is commonly used in various electronic devices for storing configuration data, calibration values, and other critical information.

Packaging/Quantity: The 25AA080T-I/SN is available in a SOIC package and is typically sold in reels of 2500 units.

Specifications

• Memory Size: 8 Kbit (1024 x 8 bits)
• Communication Protocol: SPI (Serial Peripheral Interface)
• Operating Voltage Range: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 Million cycles
• Data Retention: 200 years
• Package Type: SOIC-8

Detailed Pin Configuration

The 25AA080T-I/SN has 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ 6 │ ├───┼───┤ │ 7 │ 8 │ └───┴───┘

1. Chip Select (CS) - Input: Used to enable/disable the device for communication.
2. Serial Clock (SCK) - Input: Provides the clock signal for data transfer.
3. Serial Data Input (SI) - Input: Data input line for sending commands and data to the device.
4. Ground (GND) - Ground reference for the IC.
5. Serial Data Output (SO) - Output: Data output line for reading data from the device.
6. Write Protect (WP) - Input: When held low, prevents write operations.
7. Hold (HOLD) - Input: When held low, pauses ongoing operations.
8. Power Supply (VCC) - Power supply voltage for the IC.

Functional Features

• High-speed SPI interface for fast data transfer.
• Byte-level read and write operations.
• Software and hardware write protection options.
• Built-in write cycle timers for reliable operation.
• Low power consumption in both active and standby modes.
• Self-timed erase and write cycles for easy integration.

Advantages and Disadvantages

Advantages: - Compact size and low power consumption make it suitable for portable devices. - High reliability and endurance ensure long-term data retention. - Wide operating voltage range allows compatibility with various systems. - Easy integration with microcontrollers and other digital circuits. - Cost-effective solution for non-volatile memory storage.

Disadvantages: - Limited storage capacity compared to other memory technologies. - Slower write speeds compared to volatile memory. - Susceptible to data corruption in case of power failure during write operations.

Working Principles

The 25AA080T-I/SN uses a floating gate transistor structure to store data. It employs the SPI protocol for communication with the host system. The chip select pin is used to enable or disable the device for communication. The serial clock and data lines facilitate the transfer of commands and data between the device and the host.

During write operations, the device erases the targeted memory location and then writes the new data. The write cycle is self-timed, ensuring reliable programming. The device also provides software and hardware write protection options to prevent accidental modification of stored data.

Detailed Application Field Plans

The 25AA080T-I/SN is widely used in various applications, including but not limited to: - Consumer electronics (e.g., smartphones, tablets, digital cameras) - Automotive systems (e.g., infotainment systems, engine control units) - Industrial automation (e.g., PLCs, motor control systems) - Medical devices (e.g., patient monitoring systems, diagnostic equipment) - Communication equipment (e.g., routers, switches)

In these applications, the 25AA080T-I/SN is utilized for storing configuration settings, calibration data, encryption keys, and other critical information that needs to be retained even when power is removed.

Detailed and Complete Alternative Models

Some alternative models to the 25AA080T-I/SN include: - 25LC