EXAR, the market leader, offers the industry's broadest line-up of
UART and serial protocol transceivers solutions.
With over 200 devices, wide 2.25 to 5.5V power supply range, 1 to 128 bytes of FIFO and compliance with the universal 3.3/5V PCI, Intel and Motorola bus interfaces, including single protocol ICs that support RS-232, RS-422 or RS-485 as well as dual and multi-protocol ICs that support from 2 to 8 of the most popular interface standards with a single IC, Exar has already done the difficult work for you.
We can deliver an immediate competitive advantage to your compressed time-to-market demands accelerating initial design, to functioning prototype and finally volume production.
The SP481R and SP485R are pin-to-pin equivalent with our existing SP485 product and contain enhancements such as higher ESD tolerance and high receiver input impedance.
The higher receiver input impedance allows for connecting over 400 transceivers on a single transmission line without degrading the RS-485 driver signal. Each device is packaged in an 8-pin plastic DIP or 8-pin narrow SOIC package.
SP485R Features:
- Allows Over 400 Transceivers on Transmission Line (1/10th Unit Load)
- High Impedance on Receiver Inputs (RI= 150kΩ typical)
- Half-Duplex Configuration Consistent With Industry Standard Pinout
- –7V to +12V Common Mode Input Voltage Range
- Low Power Consumption (250mW)
- Separate Driver and Receiver Enable