SP490

更新时间： 2024-09-16 06:13:07

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SP490 数据手册

SP490ꢀandꢀSP491

FullꢀDuplexꢀRS-485ꢀTransceivers

FEATURES

• +5V Only

• Low Power BiCMOS

• Driver/Receiver Enable (SP49ꢀ)

• RS-485 and RS-422 Drivers/Receivers

• Pin Compatible with LTC490 and

SN75ꢀ79 (SP490)

• Pin Compatible with LTC49ꢀ and

SN75ꢀ80 (SP49ꢀ)

Now Available in Lead Free Packaging

DESCRIPTION

The SP490 is a low power differential line driver/receiver meeting RS-485 and RS-422

standards up to 5Mbps. The SP491 is identical to the SP490 with the addition of driver and

receiver tri-state enable lines. Both products feature ±200mV receiver input sensitivity, over

wide common mode range. The SP490 is available in 8-pin plastic DIP and 8-pin NSOIC

packages for operation over the commercial and industrial temperature ranges. The SP491

is available in ꢀ4-pin DIP and ꢀ4-pin NSOIC packages for operation over the commercial

and industrial temperature ranges.

BLOCKꢀDIAGRAMS

ꢀ

SP490ꢀ

ꢀ

SP491

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (5ꢀ0)668-70ꢀ7 • www.exar.com

SP490,49ꢀ_ꢀ00_07ꢀ408

ꢀ

12 3 4 5 6 7...12

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型号	品牌	获取价格	描述	数据表
SP490_05	SIPEX	获取价格	Full Duplex RS-485 Transceivers
SP4902DP	DYNEX	获取价格	Prescaler, Bipolar, PDIP8
SP4902MP	DYNEX	获取价格	Prescaler, Bipolar, PDSO8
SP4902NADP	MICROSEMI	获取价格	Prescaler/Multivibrator
SP4902NADP	DYNEX	获取价格	Prescaler, 4000/14000/40000 Series, 1-Func, Bipolar, PDIP8
SP4902NAMP	MICROSEMI	获取价格	Prescaler/Multivibrator
SP4904DP	DYNEX	获取价格	Prescaler, Bipolar, PDIP8
SP4904MP	DYNEX	获取价格	Prescaler, Bipolar, PDSO8
SP4904NADP	MICROSEMI	获取价格	Prescaler, 4000/14000/40000 Series, 1-Func, PDIP8, DP8
SP4904NADP	DYNEX	获取价格	暂无描述