The Microchip MRF89XAM9A datasheet provides specifications, features, pinout and operation details for the ultra‑low‑power Sub‑GHz transceiver module.
The MRF89XAM9A is an ultra‑low‑power Sub‑GHz transceiver module that integrates a crystal, internal regulator, matching network and PCB antenna. It operates in the 902‑928 MHz ISM band and is compatible with Microchip PIC® microcontrollers and the MiWi™ development environment.
The document includes a device overview, circuit description, regulatory certifications, electrical characteristics, pin description, installation guidelines, and detailed operation settings such as reset, crystal frequency and band selection. This manual is written in Chinese.
| Operating voltage | 2.1–3.6 V (typical 3.3 V) |
|---|---|
| Temperature range | -40 °C to +85 °C (industrial) |
| Receive current (Rx mode) | 3 mA (typical) |
| Transmit current (Tx mode, +10 dBm) | 25 mA (typical) |
| Sleep current | 0.1 µA (typical) |
| Frequency band | 902–928 MHz ISM |
| Modulation types | FSK and OOK |
| FSK data rate | 200 kbps |
| FSK receive sensitivity | -105 dBm at 25 kbps |
| Typical Tx output power | +10 dBm |
| Crystal frequency | 12.8 MHz |
| Package dimensions | 0.7" × 1.1" (17.8 mm × 27.9 mm) |
The module operates from 2.1 V to 3.6 V, with a typical voltage of 3.3 V.
It supports both Frequency‑Shift Keying (FSK) and On‑Off Keying (OOK) modulation.
The sleep current is typically 0.1 µA.