SN65HVD21A

更新时间： 2024-11-24 12:21:47

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
22页	573K
描述
6 Mbps, Extended Common-Mode RS-485 Transceiver

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SN65HVD21A 数据手册

SN65HVD21A

www.ti.com

SLLSE36 –DECEMBER 2010

6 Mbps, Extended Common-Mode RS-485 Transceiver

Check for Samples: SN65HVD21A

FEATURES

DESCRIPTION

•

Common-Mode Voltage Range (–20 V to 25 V)

More Than Doubles TIA/EIA-485 Requirement

The SN65HVD21A offers performance far exceeding

typical RS−485 devices. In addition to meeting all

requirements of the TIA/EIA−485−A standard, the

device operates over an extended range of

common-mode voltage, and has features such as

high ESD protection, wide receiver hysteresis, and

failsafe operation. This device is ideally suited for

long-cable networks, and other applications where

the environment is too harsh for ordinary

transceivers.

•

Reduced Unit-Load for up to 256 Nodes

Bus I/O Protection to Over 16-kV HBM

Failsafe Receiver for Open-Circuit,

Short-Circuit and Idle-Bus Conditions

•

Low Standby Supply Current 1-µA Max

More Than 100 mV Receiver Hysteresis

APPLICATIONS

The device is designed for bidirectional data

transmission on multipoint twisted-pair cables.

Example applications are digital motor controllers,

remote sensors and terminals, industrial process

control, security stations, and environmental control

systems.

•

Long Cable Solutions

–

Factory Automation

Security Networks

Building HVAC

•

Severe Electrical Environments

–

Electrical Power Inverters

Industrial Drives

Avionics

The device combines a 3-state differential driver and

a differential receiver, which operate from a single

5-V power supply. The driver differential outputs and

the receiver differential inputs are connected

internally to form a differential bus port that offers

minimum loading to the bus. This port features an

extended common-mode voltage range making the

device suitable for multipoint applications over long

cable runs.

Device Operates Over a Wider Common-Mode Voltage Range

-20 V

+25 V

SUPER485

RS485

-7 V

+12 V

-20 V -15 V -10 V -5 V

5 V

10 V 15 V 20 V 25 V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...22

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SN65HVD21A 替代型号

型号	品牌	替代类型	描述	数据表
SN65HVD24	TI	功能相似	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD23	TI	功能相似	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD20	TI	功能相似	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS

与SN65HVD21A相关器件

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SN65HVD21AD	TI	获取价格	6 Mbps, Extended Common-Mode RS-485 Transceiver
SN65HVD21ADR	TI	获取价格	6 Mbps, Extended Common-Mode RS-485 Transceiver
SN65HVD21D	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD21DG4	TI	获取价格	Extended Common-Mode RS-485 Transceivers
SN65HVD21DR	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD21DRG4	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD21MDREP	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD21MDREPG4	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD21M-EP	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS
SN65HVD21P	TI	获取价格	EXTENDED COMMON-MODE RS-485 TRANSCEIVERS

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