WT3485/WT485 is a 3.3V/5V power supply, half-duplex, low power, low slew rate RS485 Transceiver. They Fully meets the TIA/EIA-485 standard.
WT3485/WT485 includes a driver and a receiver, both of which can be independently enabled and disabled. When both are disabled, the driver and receiver outputs are high-impedance state. WT3485/WT485 has a 1/8-unit-load receiver input impedance, that allows up to 256 transceivers on the bus. The WT3485/WT485 features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 12/1Mbps.

3.3V/5V Power Supply, Half-duplex

1/8-unit-load, allows up to 256 transceivers on the bus
Short-circuit protection
Thermal shutdown protection
Low-Current Shutdown Mode
Hot-Swap Input Structures on DE and /RE
True Fail-Safe Receiver
Excellent noise immunity
Integrated transient voltage suppression
12/1Mbps in Electrically Noisy Environments
ESD Protection for Bus Terminals：
Contact Discharge±16KV,HBM±16KV

WT3485/WT485是一个3.3V/5V电源，半双工，低功耗，低转换率RS485收发器。完全符合TIA/EIA-485标准。

WT3485/WT485包括一个驱动程序和一个接收器，两者都可以独立启用和禁用。当两者都被禁用时，驱动器和接收器的输出处于高阻抗状态。WT3485/WT485有一个1/8单位负载接收器输入阻抗，这允许多达256个收发器在总线上。WT3485/WT485的特点是减少了旋转速率驱动器，最大限度地减少了电磁干扰，并减少了由不当终止电缆引起的反射，允许无错误的数据传输高达12/1Mbps。

3.3V/5V电源，半双工

1/8单元负载，允许多达256收发器在总线上

短路保护

热停堆保护

电流关闭模式

DE和/RE上的热插拔输入结构

真正的自动防故障装置接收器

优秀的噪声免疫力

综合瞬态电压抑制

电噪声环境下的12/1Mbps

总线终端机ESD防护:

接触放电±16千伏,HBM±16千伏