Smart Grid Solutions Guide - Maxim

CommunicationsFeatured productsMultiprotocol transceivers enable on-the-fly protocol selection for power-metercommunicationsMAX3160E/MAX3161E/MAX3162EBenefitsThe MAX3160E/MAX3161E/MAX3162E are multiprotocol transceiversthat allow designers to use a single device to support both RS-232and RS-485 serial communications in power-meter applications.These devices offer flexibility and convenience through a pinselectableinterface, which makes it easy to program each board tothe desired protocol during production. In addition, the transceivershave extra protection against static electricity; true fail-safe circuitrythat guarantees a logic-high receiver output when the receiverinputs are open or shorted; a 10nA shutdown mode; short-circuitlimiting; and thermal shutdown circuitry to protect against excessivepower dissipation.••Provide adaptability without additionalparts or design work––Pin-programmable half- or full-duplexcommunication––Pin-selectable RS-232 or RS-485/RS-422operation••Save board space and cost––Integrated ±15kV ESD protectioneliminates external protection circuitry––Allow up to 256 transceivers on the buswithout requiring an extra serial bus,UART, or microprocessor••Reduce power consumption––First 3V multiprotocol solution in theindustry––5x lower supply current than thecompetition—significantly reducespower dissipationMAX3160ERS-232DUAL CHARGEPUMPRS-485/RS-422UARTLOGICI/OCONTROLLOGICMULTI-PROTOCOLTRANSCEIVERBLOCKBlock diagram of Maxim’s multiprotocol transceivers.www.maxim-ic.com/smartgrid 37