25LC128-H/SN

Product Overview

Category: Integrated Circuits (ICs)

Use: The 25LC128-H/SN is a serial EEPROM (Electrically Erasable Programmable Read-Only Memory) that provides non-volatile storage of data. It is commonly used in various electronic devices for storing configuration settings, calibration data, and other small amounts of information.

Characteristics: - Low power consumption - High reliability - Small form factor - Easy to integrate into circuit designs

Package: The 25LC128-H/SN is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence: This IC is designed to provide reliable and non-volatile storage of data in electronic devices.

Packaging/Quantity: The 25LC128-H/SN is typically sold in reels containing 2500 units.

Specifications

• Memory Size: 128 kilobits (16 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating Voltage: 2.5V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1,000,000 cycles
• Data Retention: 200 years

Pin Configuration

The 25LC128-H/SN has the following pin configuration:

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| | | 1 8 | | | | 2 7 | | | | 3 6 | | | | 4 5 | |___________| ```

Pin Description: 1. Chip Select (CS) 2. Serial Clock (SCK) 3. Serial Data Input/Output (SDI/SDO) 4. Ground (GND) 5. Not Connected (NC) 6. Write Protect (WP) 7. VCC (Power Supply) 8. Not Connected (NC)

Functional Features

• Byte-level read and write operations
• Software write protection
• Sequential read mode for faster data retrieval
• Self-timed programming cycle
• Power-saving standby mode

Advantages and Disadvantages

Advantages: - Low power consumption makes it suitable for battery-powered devices - High reliability ensures data integrity - Small form factor allows for easy integration into compact designs - Easy to use with a simple serial interface

Disadvantages: - Limited storage capacity compared to other memory technologies - Slower write speeds compared to some other EEPROMs - Relatively higher cost per bit of storage

Working Principles

The 25LC128-H/SN operates based on the principles of EEPROM technology. It uses electrically controlled floating gate transistors to store and retrieve data. The data can be written or erased electronically, without the need for physical intervention.

When writing data, the IC applies a high voltage to the floating gate transistor, which traps charge in the floating gate, representing a logical "1" or "0". Reading data involves sensing the charge level in the floating gate to determine the stored value.

Application Field Plans

The 25LC128-H/SN is widely used in various electronic devices that require non-volatile storage of small amounts of data. Some common application fields include: - Consumer electronics (e.g., TVs, set-top boxes, remote controls) - Automotive electronics (e.g., engine control units, infotainment systems) - Industrial automation (e.g., sensors, programmable logic controllers) - Medical devices (e.g., patient monitoring systems, diagnostic equipment)

Alternative Models

If the 25LC128-H/SN does not meet specific requirements, alternative models with similar functionality include: - 25LC256: Offers double the storage capacity (256 kilobits) - 25AA128: Provides byte-level addressing for more flexible data access - 24LC128: Operates at lower voltage levels (1.8V)

These alternatives can be considered based on specific application needs and compatibility requirements.

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