一直在用LBC184!
不过也有坏的,

6楼，这个芯片是TI的，当然是去TI的网站找啦：

http://focus.ti.com.cn/cn/docs/prod/folders/print/sn65lbc184.html

特性

Integrated Transient Voltage Suppression
ESD Protection for Bus Terminals Exceeds:
±30 kV IEC 61000-4-2, Contact Discharge
±15 kV IEC 61000-4-2, Air-Gap Discharge
±15 kV EIA/JEDEC Human Body Model
Circuit Damage Protection of 400-W Peak (Typical) Per IEC 61000-4-5
Controlled Driver Output-Voltage Slew Rates Allow Longer Cable Stub Lengths
250-kbps in Electrically Noisy Environments
Open-Circuit Fail-Safe Receiver Design
1/4 Unit Load Allows for 128 Devices Connected on Bus
Thermal Shutdown Protection
Power-Up/-Down Glitch Protection
Each Transceiver Meets or Exceeds the Requirements of TIA/EIA-485 (RS-485) and ISO/IEC 8482:1993(E) Standards
Low Disabled Supply Current 300 µA Max
Pin Compatible With SN75176
Applications:
Industrial Networks
Utility Meters
Motor Control

SN75176BP，MAX485  都可以呀  MAX1483，

基本上都能通用的，只是注意防干扰静电

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