SP491EN/TR

更新时间： 2024-11-18 07:03:55

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SP491EN/TR 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
SP491EN-L	SIPEX	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDSO14, LEAD FREE, MO-012AB, SOIC-14
SP491ES	SIPEX	获取价格	Full Duplex RS-485 Transceivers
SP491ES	EXAR	获取价格	Full Duplex RS-485 Transceivers
SP491ES-L	SIPEX	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP14, LEAD FREE, PLASTIC, MS-001AA,
SP494C	SIPEX	获取价格	Line Transceiver, 1 Func, 4 Driver, 4 Rcvr, CMOS, PQCC20, PLASTIC, LCC-20
SP494E	SIPEX	获取价格	Line Transceiver, 1 Func, 4 Driver, 4 Rcvr, CMOS, PQCC20, PLASTIC, LCC-20
SP495	SIPEX	获取价格	Quad Differential RS-485 Transceiver
SP495CL	SIPEX	获取价格	Line Transceiver, 1 Func, 4 Driver, 4 Rcvr, BICMOS, PQCC20, PLASTIC, LCC-20
SP495CT	SIPEX	获取价格	Quad Differential RS-485 Transceiver
SP495E	SIPEX	获取价格	Line Transceiver, 1 Func, 4 Driver, 4 Rcvr, CMOS, PQCC20, PLASTIC, LCC-20