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4Kb I²C/SMBus EEPROM with Nonvolatile PIO

Multifunction, Integrated Features Reduce Component Count, Save Board Space, and Lower Overall System Cost

Product Details

Key Features

Simplified Block Diagram

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Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Key Features

  • 4Kb (512 x 8) EEPROM Organized in Two 256-Byte Blocks
  • Single Byte and up to 16-Byte EEPROM Write Sequences
  • Write-Protect Control Pin for the Entire EEPROM Array
  • Endurance 200k Cycles per Block at 25°C; 10ms max EEPROM Write Cycle
  • 4 PIO Lines
  • Each PIO is Configured to Input or Output Mode on Startup by Stored Value
  • All PIOs are Reconfigurable after Startup
  • Serial Interface User-Programmable for I²C Bus and SMBus Compatibility
  • Supports 100kHz and 400kHz I²C Communication Speeds
  • Operating Range: 2.0V to 5.25V, -40°C to +85°C
  • 4mm x 4mm 12-Pin TQFN Package

Applications/Uses

  • 4G SFP Copper Modules
  • RAID Systems
  • Servers
  • SFF-8472, SFP Fiber Modules

Description

The DS28CZ04 combines 4Kb (512 x 8) EEPROM with 4 PIO lines. Communication with the device is accomplished with an industry standard I²C and SMBus™ interface. The memory is organized as two segments of 256 bytes with single byte and up to 16-byte block write capability. Individual PIO lines may be configured as inputs or outputs. The power-on state of PIO programmed as outputs is stored in nonvolatile memory. All PIO may be reconfigured by the user through the serial interface.

Simplified Block Diagram

DS28CZ04: Typical Operating Circuit DS28CZ04: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.