AT25128A-10PU-2.7

Basic Information Overview

Category: Integrated Circuit (IC)

Use: Data storage and retrieval

Characteristics: - Non-volatile memory - Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) - 128 kilobits (16,384 x 8 bits) capacity - Low power consumption - High reliability - Wide operating voltage range (2.7V - 5.5V) - Extended temperature range (-40°C to +85°C)

Package: PDIP (Plastic Dual In-line Package)

Essence: The AT25128A-10PU-2.7 is a serial EEPROM IC that provides non-volatile data storage and retrieval capabilities. It is commonly used in various electronic devices for storing configuration settings, calibration data, and other small amounts of non-volatile information.

Packaging/Quantity: The AT25128A-10PU-2.7 is typically sold in tubes or reels, with each tube/reel containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 128 kilobits (16,384 x 8 bits)
• Interface: Serial I2C (Inter-Integrated Circuit)
• Operating Voltage Range: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Time: 5 ms (maximum)
• Data Retention: 100 years (minimum)
• Endurance: 1 million write cycles (minimum)

Detailed Pin Configuration

The AT25128A-10PU-2.7 IC has a total of 8 pins, which are assigned specific functions as follows:

1. VCC: Power supply voltage input
2. SDA: Serial data input/output for I2C communication
3. SCL: Serial clock input for I2C communication
4. WP: Write Protect pin (optional, used to protect the memory from accidental writes)
5. VSS: Ground reference voltage
6. NC: No connection (unused pin)
7. HOLD: Hold input (optional, used to pause serial communication)
8. CS: Chip Select input (used to enable/disable the IC)

Functional Features

• Byte-wise Read/Write Operations: Allows individual bytes of data to be read from or written to the memory.
• Page Write Buffer: Supports page write operations, allowing multiple bytes of data to be written in a single operation for improved efficiency.
• Software Write Protection: Provides the ability to protect specific memory areas from being overwritten by software commands.
• Sequential Read: Enables sequential reading of data from consecutive memory locations without requiring repeated address transmissions.
• Self-timed Programming Cycle: Automatically manages internal programming and erase cycles, simplifying the integration process.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention even when power is disconnected. - Low power consumption makes it suitable for battery-powered devices. - High reliability with a long data retention period and endurance. - Wide operating voltage range allows compatibility with various systems. - Compact PDIP package facilitates easy integration into circuit boards.

Disadvantages: - Limited storage capacity compared to larger EEPROM or flash memory devices. - Slower write time compared to some other non-volatile memory technologies. - Limited availability of alternative models with similar specifications.

Working Principles

The AT25128A-10PU-2.7 utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data in a grid of memory cells that can be individually programmed or erased using electrical signals. The IC communicates with the host system through the I2C interface, allowing data to be read from or written to specific memory locations.

During a write operation, the IC receives data and stores it in an internal buffer. The data is then programmed into the appropriate memory cells. Reading data involves sending the address of the desired memory location, after which the IC retrieves and outputs the corresponding data.

Detailed Application Field Plans

The AT25128A-10PU-2.7 is widely used in various electronic devices that require non-volatile data storage capabilities. Some common application fields include:

1. Consumer Electronics: Used for storing configuration settings, user preferences, and calibration data in devices such as TVs, set-top boxes, and audio systems.
2. Industrial Automation: Employed in industrial control systems for storing critical parameters, device configurations, and production data.
3. Automotive Electronics: Integrated into automotive modules for storing vehicle-specific settings, sensor calibration data, and fault codes.
4. Medical Devices: Utilized in medical equipment for storing patient data, device configurations, and firmware updates.
5. Internet of Things (IoT): Incorporated into IoT devices for storing network credentials, device identification information, and