Radio transceiver TR-77D series

radio transceiver
radio transceiver
radio transceiver
radio transceiver
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radio, ISM band, IQRF, LAN
data transmission, for sensors, remote control, for wireless data transmitters, for actuators, for lighting
Other characteristics
IC, data, bidirectional, programmable, low-power, low-consumption, ready-to-use, 869 MHz, 915 MHz


High resistivity against external interferences and noise. Extended blocking of unwanted signals. For fire sensors and similarly demanding applications. TR-77D is a family of IQRF transceiver modules operating in the 868 MHz license-free ISM (Industry, Scientific and Medical) frequency band. Its highly integrated ready-to-use design containing MCU, RF circuitry, serial EEPROM and optional onboard antenna requires no external components. SMT mounting and very small dimensions allow space-saving. Ultra-low power consumption fits for battery-powered applications. To be applicable for fire sensors and similar applications, unwanted signals are blocked by the SAW filter, only a subset of RF channels is allowed and maximal RF power is limited. MCU with builtin operating system significantly reduces application development time. Optional DPA framework supports applications without programming. Key features: RF band 868 MHz, multiple channels; RF output power 4 mW; SAW filter for extended blocking of unwanted signals, EN 54-25:2008, subclause 4.2.4 compliant; MCU with extended resources, user interrupt capability; Extra low power consumption, power management modes; SPI interface supported by OS in the background; Serial EEPROM 256 Kb; 2 LEDs; PWM output; Programmable HW timer; Battery monitoring; 18 pins, 11 I/O pins, 1 input only pin; A/D converter (4 channels), D/A converter, analogue comparator; Options: on-board antenna or soldering antenna pad-hole; Stamp-hole pads, SMT mounting, compatible with SIM card; connector without metallic holder (KON-SIM-02); Shielding can


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