nRF905 is a single-chip radio transceiver from Nordic Semiconductor ASA. It operates in the 433/868/915MHz ISM band and features ShockBurstTM mode, multi-channel operation, ultra-low power consumption, automatic CRC and preamble generation. It can be widely used in wireless data communication, alarm and security systems, home automation, remote control, surveillance, automotive, telemetry, industrial sensors, keyless entry and toys.
The nRF905 is a single‑chip GFSK transceiver covering the 433, 868 and 915 MHz ISM bands. It integrates a frequency synthesizer, receiver chain, demodulator, power amplifier, crystal oscillator and modulator, and supports ShockBurst™ low‑power operation for applications such as wireless data communication, alarm systems, home automation, remote control, automotive and industrial sensors.
The document provides a complete product specification, including pin functions and assignment, electrical specifications, current consumption, modes of operation, SPI register configuration, timing data, peripheral RF information, package outline, application examples, absolute maximum ratings, glossary and definitions. It serves as a reference for designers integrating the nRF905 into their hardware.
| Supply voltage range | 1.9 V – 3.6 V |
|---|---|
| Maximum transmit output power | 10 dBm |
| Data rate | 50 kbps |
| Typical sensitivity | -100 dBm |
| Supply current in transmit @ -10 dBm | 9 mA |
It operates in the 433 MHz, 868 MHz and 915 MHz ISM bands.
The nRF905 is offered in a 32‑pin QFN 5 × 5 mm package.
The typical transmit current at -10 dBm output power is about 9 mA.
The transceiver supports a data rate of 50 kbps.