+3.3V供电、具有±16kV ESD保护的RS-485/422收发器HGX3070E-HGX3078E
HGX3070E–HGX3078E是华冠半导体推出的+3.3V供电、具有±16kV ESD保护的RS-485/RS-422收发器。具有失效保护电路,当接收器输入开路或短路、或者挂接在终端匹配总线上的所有发送器都禁用时,接收器将输出逻辑高电平。全系列都具有热插拔功能,在上电或热插入时可以消除总线上的故障瞬变信号。
HGX3070E–HGX3075E具有低摆率驱动器,能够减小EMI和由于不恰当的终端匹配电缆所引起的反射,实现高达500kbps的无差错数据传输;HGX3076E/HGX3077E/HGX3078E驱动器的摆率不受限制,可实现高达16Mbps的传输速率。
HGX3072E/HGX3075E/HGX3078E用于半双工通信;HGX3070E/HGX3071E/HGX3073E/HGX3074E/HGX3076E/HGX3077E用于全双工通信。
所有器件的接收器具有1/8单位负载输入阻抗,总线上可以挂接多达256个收发器。
HGX3071E/HGX3072E/HGX3074E/HGX3075E/HGX3077E/HGX3078E采用8脚DIP和8脚SOP封装,HGX3070E/HGX3073E/HGX3076E采用14脚DIP和14脚SOP封装。这些器件可以提供商用级或工业级温度范围。
特性
真正的失效保护接收器,低功耗关断模式(HGX3071E/HGX3074E/HGX3077E除外)
DE与RE采用热插拔输入结构
+3.3V工作电压总线上允许挂接多达256个收发器,具有摆率限制功能有助于实现无差错数据传输(HGX3076E/HGX3077E/HGX3078E除外)
I/O口采用增强型ESD保护(±16kV IEC 61000-4-2模型)
直接取代SN65HVD72-78、HGX307X系列
应用
RS-422/RS-485通讯
数字电表水表
工业控制,工业
嵌入电脑和外设安防监控系统
路由器和交换机
仪器仪表
电平转换
对EMI敏感收发器应用
绝对最大额定值
直流电气特性
(如无另外说明,VCC=+3.3V±5%,TA=TMIN~TMAX,典型值在VCC=+3.3V,TA=25°C)
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本文由Vicky转载自华冠半导体,原文标题为:HGX3070E-HGX3078E 具有热插拔、失效保护、±16kV ESD 保护的 3.3V RS485 收发器,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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