【产品】洺太高速收发器SK2485用于RS-485通信，允许总线上最多128个收发器，传输速度达到10Mbps

时间： 2022-05-30 来源：洺太

技术问答

洺太 SK2485是用于RS-485通信的高速收发器，包含一个驱动器和一个接收器。SK2485具有故障保护电路，可在接收器输入开路或短路时保证接收器输出为逻辑高电平。这意味着，如果终端总线上的所有发射器均被禁用，则接收器输出将为逻辑高输出（高阻抗）。SK2485驱动器转换速率不受限制，使传输速度达到10Mbps。该设备具有1/8单位负载的接收器输入阻抗，允许总线上最多128个收发器。

特点

■ 故障保护电路
■ 低功耗
■ 总线上最多可连接128个收发器
■ 最大传输速率：10Mbps
■ ESD：≥±15kV
■ SOP8封装

应用

RS-485 通讯

电平转换器

安全设备

工控设备

电度表

典型应用

绝对最大额定值（TA=25℃）

供电电压（VCC）................................. 7V 接收器输入电压(A,B)...........................±13V

控制输入电压（/RE, DE）..-0.3~VCC+0.3V 接收器输出电压(RO)........-0.3~VCC+0.3V

驱动器输入电压(DI)...... -0.3~Vcc+0.3V 工作温度（TOPR）…….... -40℃~+85℃

驱动器输出电压（A,B）...................... ±13V 储存温度（TSTG）............ -65℃~+150℃

功能表

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