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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com

SP490,49_0_0627

Model

Temperature Range

Package

SP490CN-L....................................................................................0˚C to +70˚C ............................................................................... 8-Pin NSOIC

SP490CN-L/TR ..............................................................................0˚C to +70˚C ............................................................................... 8-Pin NSOIC

SP490EN-L .................................................................................. -40˚C to +85˚C.............................................................................. 8-Pin NSOIC

SP490EN=L/TR............................................................................ -40˚C to +85˚C.............................................................................. 8-Pin NSOIC

SP49CN-L....................................................................................0˚C to +70˚C .............................................................................. 4-Pin NSOIC

SP49CN/TR-L ..............................................................................0˚C to +70˚C .............................................................................. 4-Pin NSOIC

SP49EN-L .................................................................................. -40˚C to +85˚C............................................................................. 4-Pin NSOIC

SP49EN-L/TR ............................................................................ -40˚C to +85˚C............................................................................. 4-Pin NSOIC

/TR = Tape and Reel

Pack quantity is 2500 for NSOIC.

ORDERINGINFORMATION

Notice

EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliabil-

ity. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for

illustration purposes and may vary depending upon a user's specific application. While the information in this publication has been carefully checked;

no responsibility, however, is assumed for inaccuracies.

EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can

reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for

use in such applications unless EXAR Corporation receives, in writting, assurances to its satisfaction that: (a) the risk of injury or damage has been

minimized ; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately protected under the circumstances.

Copyright 20 EXAR Corporation

Datasheet May 20

Send your serial transceiver technical inquiry with technical details to: serialtechsupport@exar.com

Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.

REVISION HISTORY

Date

Revision Description

02/24/05

-

Sipex Legacy Data Sheet

07/4/08

.0.0

Convert to Exar format.

June 20 .0.

Remove minimum entry to Driver Short Circuit Current. Change SP490

receiver propagation typical to 45ns. Remove SP49 receiver short

circuit current minimum entry. Change SP49 receiver propagation

delay MIN and TYP levels to 20 and 45ns respectively. Change SP49

receiver Enable and Disable time TYP and MAX levels to 45 and 70ns

respectively. Change SP49 Supply Current TYP to 900µA. Remove

SP49 driver rise/fall time minimum. Update ordering information.