TR-75D series
Smart transceiver
Product status: Preliminary 
- TR-55D successor, high RF power (10 mW)
- 10 I/O pins
- Serial EEPROM 32 KB
- No temperature sensor, 2 LEDs
- No LDO voltage regulator, power supply 3.0 V to 3.4 V
- On-board PCB antenna
- Intended for vertical soldering,
plugging into SIM connector also possible - RF bands 868 MHz and 916 MHz
- TR-75DA-IL version (intended for Israel, observing local RF band/channel restrictions)
Ordering codes
| Type | RF band [MHz] |
Antenna option | Data controlled |
| TR-75DA | 868/916 | 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.
Datasheet TR-75DA-IL – version for Israel
AN014 - Application note RF range
RF IC datasheet - SPIRIT1
MCU datasheet - PIC16LF1938
Serial EEPROM datasheet - 24AA256
ETSI certificate - EU
Product history - Release notes
