【概要】The SN75LV4737A consists of three line drivers, five line receivers, and a charge-pump circuit. It provides the electrical interface between an asynchronous communication controller and the serial-port connector, and meets the requirements of TIA/EIA-232-F. This combination of drivers and receivers matches those needed for the typical serial port used in an IBM PC/AT or compatibles. The charge pump and five small external capacitors allow operation from a single 3.3-V supply, and four capacitors allow operation from a 5-V supply. The device has flexible control options for power management when the serial port is inactive. A common disable for all of the drivers and receivers is provided with the active-high STBY input. The active-low EN￥ input is an enable for one receiver to implement a wake-up feature for the serial port. All the logic inputs can accept signals from controllers operating from a 5-V supply, even though the SN75LV4737A is operating from 3.3 V. The SN75LV4737A is characterized for operation over the temperature range of 0°C to 70°C. Single-Chip and Single-Supply Interface for IBM PC/ATTM Serial PortMeets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.11 StandardsOperates With 3.3-V or 5-V SuppliesOne Receiver Remains Active During Standby （Wake-up Mode）Designed to Operate at 128 kbit/s Over a 3-m CableLow Standby Current...5 uA MaxESD Protection on RS-232 Pins Meets or Exceeds 4 kV （HBM） and 1.5 kV （HBM） on All Pins Per MIL-STD-883, Method 3015External Capacitors...0.1 uF（VCC = 3.3 V...Five External Capacitors）（VCC = 5 V...Four External Capacitors）Accepts 5-V Logic Input With 3.3-V SupplyApplicationsRS-232 InterfaceBattery-Powered Systems, PDAsNotebook, Laptop, and Palmtop PCsExternal Modems and Hand-Held TerminalsPackaged in Shrink Small-Outline Package【主な仕様】
