厂商：Freescale
类别：16位单片机
厂商：Linear
类别：精准放大器
厂商：Panasonic
类别：PhotoMOS(MOSFET输出光电耦合器)
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特点 Low Supply Current: 600μA at 3.3V Supply Current in Shutdown: 0.2μASupply Current in Receiver Alive Mode: 15μAESD Protection over ±10kV Operates from a Single 3V to 5.5V Supply Operates to 120kBaud with 0.1μF Flying CapacitorsThree-State Outputs Are High Impedance When OffOutput Overvoltage Does Not Force Current Back into SuppliesRS232 I/O Lines Can Be Forced to ±25V Without DamageFlowthrough Architecture典型应用典型应用描述描述 The LTC?1348 is a 3-driver/5-receiver RS232 transceiver with very low supply current. The charge pump only requires five 0.1 μF capacitors. The LTC1348 provides full RS232 output levels when operated over a wide supply range of 3V to 5.5V The transceiver operates in one of four modes: Normal, Receiver Disable, Receiver Alive and Shutdown. In Normal or Receiver Disable mode, I CC is only 600μA at 3.3V and 800μA at 5V in the no load condition. In Shutdown mode, the supply current is further reduced to 0.2μA. In Receiver Alive mode, all five receivers are kept alive and the supply current is 15μA. All RS232 outputs assume a high impedance state in Shutdown or Receiver Alive mode or with the power off. The receiver outputs assume a high impedance state in Receiver Disable or with the power off. The LTC1348 is fully compliant with all data rate and overvoltage RS232 specifications. The transceiver operates up to 120kbaud with all drivers loaded with 1000pF, 3kohms. Both driver outputs and receiver inputs can be forced to ?25V without damage and can survive multiple ±10kV ESD strikes.