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TR-77D series

Smart transceiver

Product status: New  Info

  • High resistivity against external interferences and noise
  • Extended blocking of unwanted signals
  • For fire sensors and similarly demanding applications
  • 868 MHz band, channels 45 to 67 only, SAW filter
  • RF power 4 mW
  • 12 I/O pins
  • Very low power consumption
  • Serial EEPROM 32 KB
  • Antenna options: soldering stamp-hole or on-board PCB antenna
  • No temperature sensor, 2 LEDs
  • No LDO voltage regulator, power supply 3.0 V to 3.4 V
  • Intended for SMT mounting,
    pluging into SIM connector KON-SIM-02 possible.
  • A lot of interfacing possibilities
  • Only a subset of RF channels is allowed and maximal RF power is limited. This must be ensured in user application.
» Recommended circuit for development
TR-77DA

TR-77D block schematics

Ordering codes

Type Antenna option Data controlled
TR-77D Soldering pad-hole Yes
TR-77DA On-board PCB antenna Yes

The transceivers are provided with current OS version and disabled RFPGM (wireless upload) after reset.
Older OS versions or versions with enabled RFPGM are available on request.

Ordering code
Price [EUR]
Pieces
TR-77D
22.02 question mark
PcsPrice [EUR]
1+22.02
5+22.02
20+17.30
100+12.83
1k+9.99
obr
TR-77DA
22.57 question mark
PcsPrice [EUR]
1+22.57
5+22.57
20+17.74
100+13.15
1k+10.24
obr