Module Features
• Small form factor, SMT module 25mm x 19mm
• Same footprint and pin-out as ETRX357-LRS
• Side Castellations for easy soldering and inspection
• Two antenna options: Integrated chip antenna or U.FL coaxial connector
• Based on 32-bit ARM® Cortex-M3
• Industry standard JTAG Programming and real time network level debugging via the Ember Debug Port
• Up to 512kB of flash and 64kbytes of RAM
• Lowest Deep Sleep Current of sub 1μA with retained RAM and GPIO and multiple sleep modes
• Ultra Wide supply voltage range (2.1 to 3.6V)
• Optional 32.768kHz watch crystal can be added externally
• Can act as an End Device, Router or Coordinator
• 22 general-purpose I/O lines including analogue inputs
• Firmware upgrades via serial port or over the air (password protected)
• Hardware supported encryption (AES-128)
• CE and FCC and IC compliance, IC and FCC modular approval
• Operating temperature range: -40°C to +85°C
• Standard version without LNA and PA available in the same form factor

Radio Features
• Based on the Silicon Labs EM3585 family of single chip ZigBee® SoCs
• 2.4GHz ISM Band
• 250kbit/s over the air data rate – NB: actual usable data throughput with ZigBee is about 20kbps
• 15 channels (IEEE802.15.4 Channel 11 to 25)
• SiGe SE2432L integrated PA and LNA
• +20dBm output power (adjustable down to -41dBm)
• High sensitivity of -106dBm typ. @ 1% packet error rate
• RX Current: 33mA, TX Current: approx 140mA at 20dBm