RS485 SPS3485
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4 years ago 2243
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RS-485 Breakout BOB-10124 Description: This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps. This board requires a very low amount of power and can operate from a single +3.3V DC supply. This breakout board includes the SP3485 RS-485 transceiver, filter capacitor, and other components shown on the schematic. We've broken out the RS-485 output to three different connections: (1) an RJ-45 connector, (2) a 3-pin 3.55mm screw terminal, and (3) a 3-pin 0.1" pitch header; none of these output connectors come populated. Features: Fully equipped with SP3485 RS-485 transceiver and supporting components Operates from a single +3.3V supply Interoperable with +5.0V logic RS-485 input/output broken out to RJ-45 connector, 3.5mm screw terminal, and 0.1" pitch header Driver/Receiver Enable connected to RTS line -7V to +12V Common-Mode Input Voltage Range Allows up to 32 transceivers on the serial bus Driver Output Short-Circuit Protection


RS232-RS485 Schematic

RS232-RS485 PCB


ID Name Designator Footprint Quantity
1 SP3485EP U1 DIP8 1
2 SIP3 P1 HDR1X3 1
3 SIP6 P2 HDR1X6 1
4 1u C1 C0805 1




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