Part Number: CAT25256VI-GT3

Manufacturer: onsemi

Description: IC EEPROM 256KBIT SPI 8SOIC

Shipped from: Shenzhen/HK Warehouse

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CAT25256VI-GT3 Introduction

The CAT25256VI-GT3 is an 8-SOIC box with a 256-kbit SPI EEPROM memory IC. It has a fast SPI port and can work at speeds of up to 20 MHz. This guide gives an in-depth look at the CAT25256VI-GT3, including its most important features and what it can do for data storage apps. By the end, you’ll know a lot about this IC’s pin configuration, electrical properties, communication protocol, and design factors.

Overview of CAT25256VI-GT3

The CAT25256VI-GT3 is an EEPROM memory IC that can hold 256 kbits of information. It is made to store data in electrical systems that doesn’t change when the power goes out. The IC uses the Serial Peripheral Interface (SPI) to talk to other devices, which makes it easy to use in many different applications.

Key Specifications and Functionalities

  • Storage Capacity: The CAT25256VI-GT3 has a large storage capacity of 256 Kbits, which makes it possible to store a lot of information.
  • SPI Interface: The IC’s SPI interface makes it easy to talk to a microcontroller or other devices without any problems. This makes it easy to add to current electronic systems.
  • High-Speed Operation: The CAT25256VI-GT3 works at frequencies of up to 20 MHz, which makes it possible to send data quickly and run the device efficiently.
  • Non-Volatile Memory: The IC uses a technology called “non-volatile memory,” which keeps the data saved even when the power goes out.
  • Reliable and long-lasting: The CAT25256VI-GT3 is made to be strong and dependable, with a high endurance rate and the ability to keep data.

The CAT25256VI-GT3 EEPROM Memory IC is a flexible part that can be used for a wide range of tasks, such as saving data, storing configurations, storing firmware, and storing parameters. It has a lot of storage space and an SPI interface, which makes it perfect for apps that need reliable and flexible non-volatile memory.

Pin Descriptions

  • Chip Select/Shutdown (CS/SHDN): This pin is used to turn on the IC and choose it for transmission. When the wire is pulled low, the IC is on, and data can be sent. When held down, it goes into low-power mode, where it shuts down.
  • SCK (Serial Clock): The SCK pin is in charge of sending the clock signal for synchronous serial connections. The clock pulse makes sure that the IC and the microcontroller send and receive data at the same time.
  • SI (Serial Input): During write or programming tasks, this pin is used to send data from the microcontroller to the IC. The clock signal tells the IC how to receive and handle the data.
  • VSS (Ground): The VSS pin is linked to the system’s ground reference, which gives the IC the connection to the ground it needs.
  • WP (Write Protect): This pin lets you protect the IC from being written to. When WP is pulled low, it stops any writing to the memory and turns it into a read-only mode.
  • SO (Serial Output): During a read action, the data from the IC is sent to the microcontroller through the SO pin. When the clock signal from the microprocessor comes in, the IC sends the data.
  • HOLD: The HOLD pin is used to stop the connection with the IC that is already going on. When pulled low, it stops the current communication, so the microcontroller can do other things before the communication starts up again.
  • VCC (power source): The power source is connected to the VCC pin, which gives the IC the voltage it needs to work.

Features and Benefits of the CAT25256VI-GT3 EEPROM Memory IC

● High-Speed SPI Interface

The CAT25256VI-GT3 has a high-speed Serial Peripheral Interface (SPI), which makes it easy for the IC and the microprocessor to send and receive data quickly. This feature makes it easier to communicate and reduces the time it takes to store and get information.

● Low Power Consumption

The IC was made to use little power, so it can be used in situations where saving energy is very important. It saves battery life in handheld devices and lowers the total amount of power used in embedded systems, which makes them run longer.

● Wide Range of Operating Voltages

The CAT25256VI-GT3 can work with a wide range of voltages, usually between 1.8V and 5.5V. This wide range of voltage makes it compatible with many different power source systems and gives you options for different applications.

● Non-Volatile Memory

The IC uses a technology called “non-volatile memory,” which means that it keeps the data it stores even if the power goes out. This function makes sure that the data is correct and gets rid of the need to back up the data often or use battery backup systems.

● High Endurance and Data Retention

The IC has high endurance and data retention, which means that it can store important data reliably and for a long time. It can handle a lot of write and erase processes and keep data intact for long periods of time.

● Versatile Uses

The CAT25256VI-GT3 can be used for many different things, such as data logging, setup storage, firmware storage, and parameter storage. It can be used in many different electrical systems because it has a high-speed SPI interface, uses little power, and can work with a wide range of voltages.

By taking advantage of the CAT25256VI-GT3 EEPROM Memory IC’s high-speed SPI interface, low power consumption, and wide operating voltage range, designers can make efficient and reliable data storage solutions for a wide range of uses, from consumer electronics to industrial systems.

Electrical Characteristics of the CAT25256VI-GT3 EEPROM Memory IC

  • Operating Voltage Range: Usually between 1.8V and 5.5V, which lets it work with different power source systems.
  • Operating Frequency: Up to 20 MHz, which lets you send and receive information quickly.
  • High-level input voltage (VIH) is usually 0.7 times VCC, and low-level input voltage (VIL) is usually 0.3 times VCC.
  • Levels of Output Voltage: VOH (High-Level Output Voltage) is usually 0.7 times VCC, while VOL (Low-Level Output Voltage) is usually 0.3 times VCC.

Typical Applications of the CAT25256VI-GT3 EEPROM Memory IC

Electronic systems using non-volatile memory use the CAT25256VI-GT3 EEPROM Memory IC. Common uses:

  • Data logging: The CAT25256VI-GT3 may save sensor data, event logs, and other data. Power loss does not affect its non-volatile memory.
  • Electronic gadgets save configuration settings in the IC. It stores system characteristics, user preferences, and calibration data throughout power cycles, maintaining device consistency.
  • Embedded systems store firmware on the CAT25256VI-GT3. It stores vital system codes and instructions in a reliable and conveniently accessible memory region.
  • Parameter Storage: The IC stores key parameters or settings in numerous applications. Including calibration values, system configurations, and user preferences.
  • Security Key Storage: The CAT25256VI-GT3 can store encryption keys or system security codes. Its non-volatile memory secures and accesses sensitive data.

The CAT25256VI-GT3 EEPROM Memory IC’s adaptability and non-volatile storage make it suitable for many electronic systems that need reliable and adaptable memory storage. The IC securely stores vital data for data logging, configuration, firmware, and parameter storage.


In conclusion, the CAT25256VI-GT3 EEPROM Memory IC emerges as a versatile and dependable solution for non-volatile memory storage in electrical systems. With its high-speed SPI interface, low power consumption, and wide operating voltage range, it proves to be an ideal choice for diverse applications such as data logging, configuration storage, firmware storage, and parameter storage.

At ICRFQ, our team of experts is ready to assist you in harnessing the full potential of the CAT25256VI-GT3. We will guide you in exploring the myriad capabilities of this exceptional IC, enabling you to unlock new horizons in your electronic designs. By integrating the CAT25256VI-GT3 EEPROM Memory IC, you can infuse unmatched reliability and performance into your projects.

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