DS4520 - Maxim Integrated Products

DS4520 I/O Expander Plus Memory

The DS4520 is a 9-bit nonvolatile (NV) I/O expander with 64 bytes of NV user memory controlled by an I2Ccompatible serial interface. The DS4520 offers users a digitally programmable alternative to hardware jumpers and mechanical switches that are being used to control digital logic nodes. Furthermore, the digital state of each pin can be read through the ser.

Features

● Programmable Replacement for Mechanical Jumpers and Switches
● Nine NV Input/Output Pins
● 64-Byte NV User Memory (EEPROM)
● I2C-Compatible Serial Interface
● Up to 8 Devices Can be Multidropped on the Same I2C Bus
● Open-Drain Outputs with Configurable Pullups
● Outputs Capable of Sinking 12mA
● Low Power Consumption
● Wide Operating Voltage (2.7V to 5.5V)
● Operating Temperature Range: -40°C to +85°C Ordering Information PART TEMP RANGE DS4520E+ -40°C to +85°C Add “TRL” for tape and reel orders. PIN-PACKAGE 16 TSSOP Pin Configuration VCC 0.1µF 4.7kΩ FROM SYSTEM CONTROLLE.