Radio module based Silicon Labs Si4463 /
SI4463-C2A-GMR
RF transceiver.

N540AS Si4463 SPI wireless transceiver module designed for 169M, 433M, 868M and 915Mhz band. The module up to +20 dBm output power, and down to -126dBm sensitivity. Ardunio support.

N540AS based Silicon Labs Si4463. 169MHz, 433M, 868M and 915MHz used. The module transmission range is about 1500m.

Si4463 module leads all pins out of SI4463 for secondary development.

N540AS is suitable for free frequency band in EU.

RF Interface	Parameter
Frequency	169M, 433M, 868M, 915MHz
Output Power	+20dBm
Sensitivity	-120dBm
Symbol Rate	0.3-500kbps
Deviation	+/-10kHz
Distance	2000m

Hardware parameters	Value
Size	16 x 12 x 3mm
Antenna Interface	RF pin
Communication Interface	SPI
Package	SMD

Electrical Parameters	Minimum	Typical	Maximum
Volt	1.8V	3.3V	3.9V
Emission Current		120mA
Receiving Current		18mA
Sleep current		0.1uA
Working Temperature	-40℃		85℃

N540AS Pin Definition

Si4463 module size

Si4463 Programming

‍N540AS Datasheet Download

SI4463 Datasheet Download

Si4463 Ardunio code

Si4463 Sample code‍

Si4463 Radio Library for AVR and Arduino

This is a library for use with the Si4463 radio IC from Silicon Labs, used (or will soon be) in some of my projects. The Si4463 is configurable in a ton of different ways with options for modulation, packet format, CRC algorithms and has a high output power of up to +20dBm (100mW). The Si4463 is used in a number of pre-made modules like the HopeRF RFM26W and Coral RF N540AS. The whole range of Si446x transceivers should also work with this library.

This library configures the chip to send and receive variable length packets of up to 128 bytes and uses callback functions for when events occur, such as receiving a new packet and completing a packet transmission. The callback functions run straight from the interrupt routine allowing the program to react much faster to events than if the library was polled.

Ordering Information

N540AS-169M Si4463 SPI, +20dBm, 160M - 175MHz

N540AS-433M Si4463 SPI, +20dBm, 410M - 480MHz

N540AS-868M Si4463 SPI, +20dBm, 860M - 960MHz

Files download

N540AS Software code example‍ Download N540AS datasheet Download Si4463 datasheet

Radio modules/Dongles design Manufacturer

Si4463 Module, +20dBm, N540AS

Radio module based Silicon Labs Si4463.

N540AS Si4463 module designed for 169M, 433M, 868M 915Mhz band. Up to 20dBm output power, and down to -126dBm sensitivity.