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Partname: | SN75LV4737ADBRE4 |
Description: | 3.3-V/5-V Multichannel RS-232 Line Driver/Receiver |
Manufacturer: | Texas Instruments |
Datasheet: | PDF (238K). Click here to download *) |
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 0C to 70C. |
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