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The IO60-COM4 is a four channel asynchronous serial module supporting RS-232, RS-422, and RS-485 serial standards. The module utilizes high-speed serial peripheral interface (SPI™) and I2C interfaces to provide serial expansion for single board computers with the IO60 connector. The flexible design uses jumperless configuration and is compatible with both ARM and x86 single board computers.


SKU: IO60-COM4 Categories: , , ,
Serial UART

Four independent asynchronous serial channels
– Maxim MAX14830ETM+ Quad Serial UART
128-Word Transmit and Receive FIFOs per channel
Programmable baud rates to 5.5 Mbps (using 1.8432 MHz reference)
Fractional baud-rate generators, predivider, and phase-locked loop (PLL)
Software and hardware flow control supported
Programmable serial characteristics for each channel:
– 5, 6, 7, or 8-bit character lengths
– Even, odd, or no parity
– 1, 1.5, or 2 stop bits

Serial Transceivers

RS-232, RS-485, and RS-422 Transceivers with internal termination
– EXAR – SP339EER1
High Speed interfaces support up to 20 Mbps RS-485/422 and 1 Mbps RS-232
No external resistors required for RS-485/422 termination
CTS, RTS, DSR, DTR, RI and DCD (RS-232)
RS-485/422 Enhanced fail-safe for inputs
Local internal loopback for diagnostics
ESD Protection:
– ±15kV Human Body Model (HBM)
– ±8kV IEC 61000-4-2 (Contact)


+3.3V required, 37 mA typical


1.97 x 2.84 inches (50 x 72 mm)
Weight: 19g (0.67 oz)

Operating Temperature Range

-40°C to 85°C

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