Silicon Labs Si4461-B1B-Fm of Pins:20Pins; Supply Voltage Min:1.6V; Transmitting Current:33mA; Output Power (dBm):16dBm; Sensitivity dBm:-97dBm; RF Transceiver Applications:Automatic Meter Reading, Wireless Sensor Networks, Home and Building Automation; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:-; RoHS Phthalates Compliant:To Be Advised; MSL:MSL 1 - Unlimited.8V; Supply Voltage Max:3.