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Data Sheet

FULL DATA SHEET (PDF, 984kB) Download   E-Mail

Description

The DS4520 is a 9-bit nonvolatile (NV) I/O expander with 64 bytes of NV user memory controlled by an I²C-compatible 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 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.

Key Features		Applications/Uses
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 UL Certified		Network Storage PC Peripherals RAM-Based FPGA Bank Switching for Multiple Profiles Routers/Switches Selecting Between Boot Flash Servers Setting ASIC Configurations/Profiles Telecom Equipment

Application Notes

Application Note 3291: Using DS4510/DS4520/DS4550 to Select Backup Flash Memory - DS4520, DS4520

Evaluation Kits

none

Reliability Reports

Reliability Report: DS4520.pdf

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-3 of 3
DS4520	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS4520E+			TSSOP;16 pin;33 mm² Dwg: 56-G2019-000A (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS4520E			TSSOP;16 pin;33 mm² Dwg: 56-G2019-000A (PDF) Use pkgcode/variation: U16-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS4520E+TRL			TSSOP;16 pin;33 mm² Dwg: 56-G2019-000A (PDF) Use pkgcode/variation: U16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2004-07-14

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