ISL41334 Overview
With both ports set to the same mode, two RS-485, RS-422 transceivers, or four RS-232 transceivers are available. If either port is in RS-232 mode, the onboard charge pump generates RS-232 pliant ±5V Tx output levels from a single VCC supply as low as 4.5V. Four small 0.1µF capacitors are required for the charge pump.
ISL41334 Key Features
- ±15kV (HBM) ESD protected bus pins (RS-232 or RS-485)
- Two independent ports, each user selectable for RS-232
- Single 5V (10% tolerance) supply
- Flow-through pinouts simplify board layouts
- Pb-Free (RoHS pliant)
- Large (2.7V) differential VOUT for improved noise immunity
- Full fail-safe (open/short) Rx in RS-485, RS-422 mode
- Loopback mode facilitates board self-test functions
- User selectable RS-485 data rates (ISL41334 only)
- Fast speed