Data Sheet
SNAP Engine RF220UF1 Modules Overview
The SNAP Engine Model RF220UF1 series consists of an SM220UF1 on a carrier
board. It is an IEEE 802.15.4, low-power, highly reliable solution for embedded
wireless control and monitoring networks that require high data rates. The Model
RF220UF1 embeds Synapse’s SNAP OS, the industry’s first Internet-enabled,
wireless mesh network operating system, into the Atmel ATmega128RFA1 single-
chip AVR
®
microcontroller with an integrated transceiver that delivers up to
2Mbits/sec. This low-cost module can have current consumption under 390nA to
enable a new generation of battery-driven systems. The RF220UF1 also includes
a Skyworks SE2431L front-end module, which provides a power amplifier and
LNAfor increased range.
SNAP’s on-board Python interpreter provides for rapid application development and over-the-air programming,
while Atmel’s low-power RF single-chip design saves board space and lowers power consumption. The modules
provide up to 15 channels of operation in the ISM 2.4GHz frequency band.
By default, the SNAPoperating system automatically forms a mesh network with other nodes immediately on
receiving power. No further configuration is necessary. Multiple unrelated SNAPnetworks can exist within the same
area through several configuration options outlined in the SNAPUser Guide available from www.synapse-
wireless.com.
NOTE: Channel 15 is receive-only due to FCCpower restrictions.
This data sheet covers part number RF220UF1:
• 20 GPIO with up to 7 A/D inputs
• 128k flash, 58.5k free for over-the-air uploaded user apps
• Two UART ports for control or transparent data
• Low power modes:
• Timed Sleep Mode 1: 1.27 µA
• Timed Sleep Mode 2 : 1.47 µA
• Untimed Sleep Mode : < 390 nA
• Spread Spectrum (DSSS) technology
• Up to 2 Mbps radio data rate
• 2.4 GHz RF Frequency
• AES 128-bit encryption
• Integrated on-board compact F antenna or U.FL connecter
• Solder-able or socket-able
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