25LC020AT-I/OT

Product Overview

Category

The 25LC020AT-I/OT belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, sensors, and communication modules.

Characteristics

• Low power consumption
• High reliability
• Small form factor
• Wide operating voltage range
• Fast read and write operations
• High endurance and retention

Package

The 25LC020AT-I/OT is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to store and retrieve digital information reliably, even when the power supply is removed.

Packaging/Quantity

The 25LC020AT-I/OT is typically packaged in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Memory Capacity: 2 kilobits (256 bytes)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 25LC020AT-I/OT has the following pin configuration:

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

Functional Features

• Byte-level read and write operations
• Software and hardware write protection
• Sequential and random access modes
• Self-timed programming cycle
• Power-saving standby mode
• Built-in write protection circuitry

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered devices.
• High reliability ensures data integrity in critical applications.
• Small form factor allows for space-efficient designs.
• Wide operating voltage range provides compatibility with various systems.
• Fast read and write operations enhance overall system performance.
• High endurance and retention ensure long-term data storage.

Disadvantages

• Limited memory capacity may not be sufficient for certain applications.
• Lack of built-in security features may require additional measures for data protection.

Working Principles

The 25LC020AT-I/OT utilizes the SPI interface to communicate with the host microcontroller. It employs a floating gate transistor technology to store digital information. When writing data, an electrical charge is applied to the floating gate, altering its threshold voltage. This change determines whether the transistor represents a logical "0" or "1". During read operations, the stored charge is measured, allowing the retrieval of the stored data.

Detailed Application Field Plans

The 25LC020AT-I/OT finds applications in various fields, including:

1. Internet of Things (IoT) devices
2. Automotive electronics
3. Industrial control systems
4. Medical equipment
5. Consumer electronics

Detailed and Complete Alternative Models

1. 25AA020A
2. 25LC040A
3. 25LC080A
4. 25LC160A
5. 25LC320A

These alternative models offer different memory capacities and package options while maintaining similar functionality and characteristics.

In conclusion, the 25LC020AT-I/OT is a versatile Serial EEPROM IC that provides reliable non-volatile data storage in a compact form factor. Its low power consumption, high reliability, and fast operation make it suitable for a wide range of applications. However, its limited memory capacity and lack of built-in security features should be considered when selecting this product for specific use cases.