�15kV ESD Protected, 5V, Dual Protocol (RS-232/RS-485) Transceivers

These devices are BiCMOS Interface ICs that are user configured as either a single RS-422 RS-485 differential transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver.
In RS-232 mode, the on-board Charge Pump generates RS-232 compliant 5V Tx output levels, from a supply as low as 4.5V. Four small 0.1F capacitors are required for the Charge Pump The transceivers are RS-232 compliant, with the Rx inputs handling up to 25V, and the Tx outputs handling 12V.
In RS-485 mode, the transceivers support both the RS-485 and RS-422 differential Communication standards. The RS-485 receiver features "full failsafe" operation, so the Rx output remains in a high state if the inputs are open or shorted together. The RS-485 transmitter supports up to three data rates, two of which are slew rate limited for problem free Communications The Charge Pump disables in RS-485 mode, thereby saving power, minimizing noise, and eliminating the Charge Pump capacitors.
Both RS-232 RS-485 modes feature loopback and shutdown functions. The loopback mode internally connects the Tx outputs to the corresponding Rx input, which facilitates the implementation of board level self test functions. The outputs remain connected to the loads during loopback, so connection problems (e.g., shorted connectors or cables) CAN be detected. The shutdown mode disables the Tx and Rx outputs, disables the Charge Pump if in RS-232 mode, and places the IC in a low current (20A) mode.
The ISL41387 is a QFN packaged device that offers additional functionality, including a lower speed and edge rate option (115kbps) for EMI sensitive designs, or to allow longer bus lengths. It also features a Logic supply voltage pin (VL) that sets the VOH level of Logic outputs, and the switching points of Logic inputs, to be compatible with another supply voltage in mixed voltage systems. The QFN's choice of active high or low Rx enable pins increases design flexibility, allowing Tx/Rx direction control via a single signal by connecting DEN and RXEN together.
For a dual port version of these devices, please see the ISL81334 ISL41334 data sheet.
By Intersil Corporation
ISL41387 's PackagesISL41387 's pdf datasheet

ISL41387 Pinout, Pinouts
ISL41387 pinout,Pin out
This is one package pinout of ISL41387,If you need more pinouts please download ISL41387's pdf datasheet.

ISL41387 Application circuits
ISL41387 circuits
This is one application circuit of ISL41387,If you need more circuits,please download ISL41387's pdf datasheet.

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