CAT24C256WI

Resistor Network, Array Bussed Surface Mount 10 8 -55°C ~ 125°C 1608 ±5%
4,507 Effective Inventory

CAT24C256WI

Effective Inventory4,507

Resistor Network, Array Bussed Surface Mount 10 8 -55°C ~ 125°C 1608 ±5%

  • Manufacturer Part # : CAT24C256WI

  • Package/Case: SOP8

  • Brand: Onsemi

  • Product Categories : EEPROMs

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CAT24C256WI DataSheet
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CAT24C256WI Details

[ON-Semiconductor]DescriptionThe CAT24C256 is a 256 kb Serial CMOS EEPROM, internally organized as 32,768 words of 8 bits each.It features a 64−byte page write buffer and supports both the Standard (100 kHz) as well as Fast (400 kHz) I2C protocol.Write operations can be inhibited by taking the WP pin High (this protects the entire memory).External address pins make it possible to address up to eight CAT24C256 devices on the same bus.Features• Supports Standard and Fast I2C Protocol• 1.8 V to 5.5 V Supply Voltage Range• 64−Byte Page Write Buffer• Hardware Write Protection for Entire Memory• Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs (SCL and SDA)• Low Power CMOS Technology• 1,000,000 Program/Erase Cycles• 100 Year Data Retention• Industrial and Extended Temperature Range• PDIP, SOIC, TSSOP and TDFN 8−lead Packages• This Device is Pb−Free, Halogen Free/BFR Free, and RoHS Compliant

Key Features

  • Supports Standard and Fast I2C Protocol
  • 1.8 V to 5.5 V Supply Voltage Range
  • 64−Byte Page Write Buffer
  • Hardware Write Protection for Entire Memory
  • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs
  • (SCL and SDA)
  • Low Power CMOS Technology
  • 1,000,000 Program/Erase Cycles
  • 100 Year Data Retention
  • Industrial and Extended Temperature Range
  • PDIP, SOIC, TSSOP and TDFN 8−lead Packages
  • This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
  • Compliant

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Manufacturer ON Semiconductor Product Category ! Memory ICs

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification CAT24C256WI PDF Download

FAQs

What is CAT24C256WI?

The CAT24C256WI is a 256K-bit serial I2C EEPROM (Electrically Erasable Programmable Read-Only Memory) manufactured by ON Semiconductor. It is commonly used for storing small amounts of non-volatile data in various electronic systems, including consumer electronics, automotive applications, and industrial control systems.

How Does CAT24C256WI Work?

The CAT24C256WI operates as a non-volatile memory device that can store data even when power is removed. It communicates with microcontrollers or other devices over the I2C bus, allowing for easy integration into digital systems. The EEPROM supports both read and write operations, enabling data storage and retrieval as needed.

How Many Pins does CAT24C256WI have and What are the Functions of the Pinout Configuration?

The CAT24C256WI is typically housed in an 8-pin SOIC (Small Outline Integrated Circuit) or 8-pin PDIP (Plastic Dual In-line Package) package. The pinout configuration includes:

  • VCC: Power supply pin.
  • GND: Ground pin.
  • A0, A1, A2: Address pins for device addressing.
  • SCL: Serial clock input for I2C communication.
  • SDA: Serial data input/output for I2C communication.
  • WP: Write protect pin for hardware write protection.

What are the Pros and Cons of CAT24C256WI?

Pros:

  • Non-Volatile Storage: Retains data even without power, ideal for data logging and parameter storage.
  • I2C Interface: Easy integration with microcontrollers and other devices supporting the I2C protocol.
  • Low Power Consumption: Operates with low power, suitable for battery-powered devices.
  • Multiple Package Options: Available in different package types for flexibility in design.
  • High Reliability: Offers reliable data retention and endurance characteristics.

Cons:

  • Limited Storage Capacity: Depending on the application, 256K bits may not be sufficient for certain data storage requirements.
  • Write Cycle Limitations: EEPROMs have a limited number of write cycles, requiring careful management in write-intensive applications.
  • Speed: EEPROMs are slower compared to volatile memory types like SRAM.

Are There Any Equivalents/Alternatives to CAT24C256WI for Recommendation?

  • Alternative options to the CAT24C256WI include the AT24C256 from Microchip Technology and the ST M24C256 from STMicroelectronics.
  • Equivalents to the CAT24C256WI include the 24AA256 from Microchip Technology and the 24LC256 from Microchip Technology.

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