Datasheet > XR3074XIDTR-F

XR3074XIDTR-F

更新时间： 2024-11-09 22:48:31

品牌	Logo	应用领域
艾科嘉 - EXAR		/
页数	文件大小	规格书
23页	740K
描述
IC TXRX RS485/422 1MBPS 8SOIC

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XR3074XIDTR-F 数据手册

XR3070-78X

LOW POWER 18V TOLERANT RS-485/RS-422 +3.3V TRANSCEIVERS

SEPT 2013

REV. 1.0.0

GENERAL DESCRIPTION

FEATURES

The XR3070-78X family of high performance RS-485/

422 devices are designed for improved performance in

noisy industrial environments and increased tolerance

to system faults.

 10% Higher SNR (Signal-to-Noise Ratio)

compared to other RS-485 devices (1.65V vs. 1.5V)

 ±18V Fault Tolerance on Analog Bus pins

 Robust ESD (ElectroStatic Discharge) Protection:

The analog bus pins can withstand direct shorts up to

±18V, and are protected against ESD events up to

±15kV. The differential high output driver delivers 10%

higher SNR than standard RS-485/422 devices, afford-

ing additional noise margin or extended cable lengths.

■ ±15kV IEC 61000-4-2 Air Gap Discharge

■ ± 8kV IEC 61000-4-2 Contact Discharge

■ ±15kV Human Body Model

■ ± 4kV Human Body Model on non-bus pins

 +3.0V to +3.6V Operation (3.3V ± 10%)

 300μA Idle Current, 1nA Shutdown Current

The receivers include full fail-safe circuitry, guarantee-

ing a logic-high receiver output when the receiver

inputs are open, shorted, or undriven. The receiver

input impedance is at minimum 96k (1/8 unit load),

allowing up to 256 devices on the bus while preserving

the full signal margin.

 Enhanced Receiver Fail-Safe Protection for Open,

Shorted, or Terminated but Idle Data Lines

 Hot-Swap Glitch Protection on DE and RE Pins

 Driver Short Circuit Current Limit and Thermal

Shutdown for Overload Protection

The drivers are protected by short circuit detection as

well as thermal shutdown, and maintain high imped-

ance in shutdown or when powered off. The XR3070-

75X drivers are slew limited for reduced EMI and error-

free communication over long or unterminated data

cables.

 1/8 Unit Load Allows up to 256 Devices on Bus

 Industry Standard 8 and 14 NSOIC Packages

The devices with DE and RE pins include hot swap cir-

cuitry to prevent false transitions on the bus during

powerup or live insertion, and can enter a 1nA low cur-

rent shutdown mode for extreme power savings.

The transceivers draw less than 600μA from a +3.3V

supply, and typically only 300μA when idling with the

receivers active.

TYPICAL APPLICATIONS

 Motor Control

V_CC

 Security Systems

 Building and Process Automation

 Remote Utility Meter Reading

 Energy Monitoring and Control

 Long or Unterminated Transmission Lines

GND

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510) 668-7000 • FAX (510) 668-7017 • www.exar.com

12 3 4 5 6 7...23

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与XR3074XIDTR-F相关器件

型号	品牌	获取价格	描述	数据表
XR3075XED-F	EXAR	获取价格	LOW POWER 18V TOLERANT RS-485/RS-422 3.3V TRANSCEIVERS
XR3075XID-F	EXAR	获取价格	IC TXRX RS485/422 1MBPS 8SOIC
XR3075XIDTR-F	EXAR	获取价格	IC TXRX RS485/422 1MBPS 8SOIC
XR3076XED-F	EXAR	获取价格	LOW POWER 18V TOLERANT RS-485/RS-422 3.3V TRANSCEIVERS
XR3076XID-F	EXAR	获取价格	IC TXRX RS485/422 20MBPS 14SOIC
XR3076XIDTR-F	EXAR	获取价格	IC TXRX RS485/422 20MBPS 14SOIC
XR3077XED-F	EXAR	获取价格	LOW POWER 18V TOLERANT RS-485/RS-422 3.3V TRANSCEIVERS
XR3077XID-F	EXAR	获取价格	IC TXRX RS485/422 20MBPS 8SOIC
XR3077XIDTR-F	EXAR	获取价格	IC TXRX RS485/422 20MBPS 8SOIC
XR3078XED-F	EXAR	获取价格	LOW POWER 18V TOLERANT RS-485/RS-422 3.3V TRANSCEIVERS

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