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MMAAXX33007701EE

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德州仪器 - TI 驱动器
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3.3 V FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS

MMAAXX33007701EE 数据手册

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RHL (QFN)  
D-8 (SOIC)  
D-14 (SOIC)  
SN65HVD30 SN65HVD39  
www.ti.com  
SLLS665ESEPTEMBER 2005REVISED MARCH 2008  
3.3 V FULL-DUPLEX RS-485 DRIVERS AND RECEIVERS  
Each driver and receiver has separate input and  
1
FEATURES  
output pins for full-duplex bus communication  
designs. They are designed for balanced  
transmission lines and inter-operation with ANSI  
TIA/EIA-485A, TIA/EIA-422-B, ITU-T v.11 and ISO  
8482:1993 standard-compliant devices.  
1/8 Unit-Load Option Available (Up to  
256 Nodes on the Bus)  
Bus-Pin ESD Protection Exceeds 15 kV HBM  
Optional Driver Output Transition Times for  
Signaling Rates(1) of 1 Mbps, 5 Mbps and  
26 Mbps  
The SN65HVD30, SN65HVD31, SN65HVD32,  
SN65HVD36 and SN65HVD37 are fully enabled with  
no external enabling pins.  
Low-Current Standby Mode: < 1 µA  
Glitch-Free Power-Up and Power-Down  
Protection for Hot-Plugging Applications  
The SN65HVD33, SN65HVD34, SN65HVD35,  
SN65HVD38, and SN65HVD39 have active-high  
driver enables and active-low receiver enables. A low,  
less than 1µA, standby current can be achieved by  
disabling both the driver and receiver.  
5-V Tolerant Inputs  
Bus Idle, Open, and Short Circuit Failsafe  
Driver Current Limiting and Thermal Shutdown  
All devices are characterized for ambient  
temperatures from –40°C to 85°C. Low power  
dissipation allows operation at temperatures up to  
105°C or 125°C, depending on package option.  
Meets or Exceeds the Requirements of ANSI  
TIA/EIA-485-A and RS-422 Compatible  
5-V Devices available, SN65HVD50-59  
(1)  
Line Signaling Rate is the number of voltage transitions made  
per second expressed in units of bps (bits per second).  
The preview devices SN65HVD36 and SN65HVD38  
implement receiver equalization technology for  
improved jitter performance on differential bus  
applications with data rates up to 20 Mbps at cable  
lengths up to 160 meters.  
APPLICATIONS  
Utility Meters  
DTE/DCE Interfaces  
Industrial, Process, and Building Automation  
Point-of-Sale (POS) Terminals and Networks  
The preview devices SN65HVD37 and SN65HVD39  
implement receiver equalization technology for  
improved jitter performance on differential bus  
applications with data rates in the range of 1 to 5  
Mbps at cable lengths up to 1000 meters.  
DESCRIPTION  
The SN65HVD3X devices are 3-state differential line  
drivers and differential-input line receivers that  
operate with 3.3-V power supply.  
IMPROVED REPLACEMENT FOR:  
Part Number  
Replace with  
xxx3491  
xxx3490  
SN65HVD33:  
SN65HVD30:  
Better ESD protection (15kV vs 2kV or not specified) Higher Signaling Rate (26Mbps vs 20Mbps)  
Fractional Unit Load (64 Nodes vs 32)  
MAX3491E  
MAX3490E  
SN65HVD33:  
SN65HVD30:  
Higher Signaling Rate (26Mbps vs 12Mbps) Fractional Unit Load (64 Nodes vs 32)  
Higher Signaling Rate (26Mbps vs 16Mbps) Lower Standby Current (1 µA vs 10 µA)  
Higher Signaling Rate (5Mbps vs 500kbps) Lower Standby Current (1 µA vs 10 µA)  
Higher Signaling Rate (1Mbps vs 250kbps) Lower Standby Current (1 µA vs 10 µA)  
MAX3076E  
MAX3077E  
SN65HVD33:  
SN65HVD30:  
MAX3073E  
MAX3074E  
SN65HVD34:  
SN65HVD31:  
MAX3070E  
MAX3071E  
SN65HVD35:  
SN65HVD32:  
1
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.  
UNLESS OTHERWISE NOTED this document contains  
PRODUCTION DATA information current as of publication date.  
Products conform to specifications per the terms of Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005–2008, Texas Instruments Incorporated  

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