4Kb I²C/SMBus EEPROM with Nonvolatile PIO

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

Overview

Technical Documents

Ordering Info

Status

All versions are No Longer Available.

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.

Data Sheet

Download	Rev 1	(PDF, 360kB)
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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

Diagram

Typical Operating Circuit

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 1; 2007-06-11
This page last modified: 2009-09-04