UC864-E Hardware User Guide

1vv0300766a Rev.1 - 31/01/08

An example of level translation circuitry of this kind is:

The example is done with a SIPEX SP3282EB RS232 Transceiver that could accept supply voltages lower than 3V DC.

NOTE: In this case Vin has to be set with a value compatible with the logic levels of the module (Max 2.9V DC). In this configuration the SP3282EB will adhere to EIA/TIA-562 voltage levels instead of RS232 (-5 +5V)

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Telit Wireless Solutions manual UC864-E Hardware User Guide