Maxim Integrated DS4520
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. Each I/O pin is independently configurable.| Part No. | DS4520 |
|---|---|
| Datasheet | DS4520 Download |
| Manufacturer |  Maxim Integrated |
| Description | I/O Expander Plus Memory |
| Buy | Stock & Price |
GENERAL DESCRIPTION
Furthermore, the digital state of each pin can be read through the serial interface. Each I/O pin is independently configurable. The outputs are open drain with selectable pullups. Each output has the ability to sink up to 12mA. Since the device is NV, it powers up in the desired state allowing it to control digital logic inputs immediately on power-up without having to wait for the host CPU to initiate control.APPLICATIONS
●● RAM-Based FPGA Bank Switching for Multiple Profiles●● Selecting Between Boot Flash
●● Setting ASIC Configurations/Profiles
●● Servers
●● Network Storage
●● Routers
●● Telecom Equipment
●● PC Peripherals Typical Operating Circuit
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...
