25LC080D-I/ST

Product Overview

Category: Integrated Circuits (ICs)

Use: Non-volatile Memory

Characteristics: - Low-power CMOS technology - 8Kbytes of EEPROM memory - SPI interface - 1.8V to 5.5V operating voltage range - 1 MHz clock rate - 100 years data retention - 1 million erase/write cycles

Package: SOIC-8

Essence: The 25LC080D-I/ST is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuit that provides non-volatile storage for various applications.

Packaging/Quantity: The 25LC080D-I/ST is available in a standard SOIC-8 package and is typically sold in reels of 2,000 units.

Specifications

• Memory Size: 8 Kbytes
• Interface Type: Serial Peripheral Interface (SPI)
• Operating Voltage Range: 1.8V to 5.5V
• Clock Rate: Up to 1 MHz
• Data Retention: 100 years
• Erase/Write Cycles: 1 million

Detailed Pin Configuration

The 25LC080D-I/ST has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | CS | Chip Select | | 2 | SCK | Serial Clock | | 3 | SI | Serial Input | | 4 | SO | Serial Output | | 5 | WP | Write Protect | | 6 | VSS | Ground | | 7 | HOLD | Hold Input | | 8 | VCC | Power Supply |

Functional Features

• Non-volatile storage: The 25LC080D-I/ST retains data even when power is removed.
• Serial interface: It uses the SPI protocol for communication with a microcontroller or other devices.
• Low-power consumption: The IC operates at low voltage and has a low standby current, making it suitable for battery-powered applications.
• High endurance: It supports up to 1 million erase/write cycles, ensuring long-term reliability.

Advantages and Disadvantages

Advantages: - Compact size and easy integration into various electronic systems. - Wide operating voltage range allows compatibility with different power supply levels. - High endurance ensures reliable data storage over an extended period. - Low-power consumption makes it suitable for energy-efficient applications.

Disadvantages: - Limited storage capacity compared to larger EEPROMs or other memory technologies. - Slower write speeds compared to some other non-volatile memory options. - Requires an external microcontroller or device for interfacing and control.

Working Principles

The 25LC080D-I/ST utilizes EEPROM technology to store data. It consists of a grid of memory cells that can be electrically programmed and erased. The serial interface allows data to be written or read one byte at a time. The chip select (CS), clock (SCK), and serial input/output (SI/SO) pins facilitate communication with a microcontroller or other devices.

When writing data, the chip select pin is activated, and the clock signal synchronizes the data transfer. The data is then sent through the serial input pin and stored in the appropriate memory cell. Reading data follows a similar process, where the desired memory location is selected, and the data is retrieved through the serial output pin.

Detailed Application Field Plans

The 25LC080D-I/ST is commonly used in various applications, including but not limited to:

1. Consumer Electronics:

   • Smartphones
   • Tablets
   • Digital cameras

2. Automotive:

   • Engine control units
   • Infotainment systems
   • Instrument clusters

3. Industrial Control Systems:

   • Programmable logic controllers (PLCs)
   • Human-machine interfaces (HMIs)
   • Data loggers

4. Home Automation:

   • Smart thermostats
   • Security systems
   • Lighting control systems

Detailed and Complete Alternative Models

Some alternative models to the 25LC080D-I/ST include:

1. AT24C08A: 8Kbit I2C-compatible EEPROM
2. M93C86-WMN6P: 16Kbit Microwire-compatible EEPROM
3. CAT24C08WI-GT3: 8Kbit Serial EEPROM with a wide operating voltage range

These alternatives offer similar functionality and can be considered based on specific application requirements.

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