Microchip Technology AC164136-4 Features: Supports Low-power, Low Data-rate, WEP, WPA-PSK, WPA2-PSK Security Frequency: 2.4GHz ID_COMPONENTS: 1939333 Interface Type: SPI Lead Free Status / Rohs Status: Lead free / RoHS Compliant Silicon Core Number: MRF24WB0MA Silicon Manufacturer: Microchip Type: Microcontroller, Transceiver