Technical data sheet for the Microchip MRF24J40 IEEE 802.15.4 2.4 GHz RF transceiver.
The MRF24J40 is a low‑cost, low‑power 2.4 GHz RF transceiver that integrates PHY and MAC functions compliant with the IEEE 802.15.4 standard. It supports ZigBee®, MiWi™, and proprietary wireless protocols and connects to Microchip PIC® MCUs via a 4‑wire SPI interface.
The document provides a detailed hardware description, functional features, electrical characteristics, package information, and application guidance for designers developing wireless personal area network (WPAN) solutions. This manual is written in Chinese.
| Frequency range | 2.405‑2.48 GHz |
|---|---|
| Data rate | 250 kbps (standard) / 625 kbps (accelerated) |
| Maximum TX output power | +0 dBm (typical) |
| RX sensitivity | -95 dBm (typical at +5 dBm input) |
| TX current consumption | 23 mA (typical) |
| RX current consumption | 19 mA (typical) |
| Sleep mode current | 2 µA (typical) |
| Package | 40‑pin QFN 6 × 6 mm² |
| Operating temperature range | -40 °C to +85 °C (industrial) |
It complies with the IEEE 802.15.4 standard and supports ZigBee®, MiWi™, and MiWi P2P protocols.
Six general‑purpose I/O pins are provided, which can be used for control or monitoring functions.
The device draws about 2 µA in sleep mode.