As of 6-01-2007, these parts have not been released for sale by Texas Instruments. We do not have a confirmed release date at this time. Once we receive updated shipping information from Texas Instruments, we will update our system with valid ship dates. This information will be available on mouser.com or you can contact your Mouser Technical Sales Representative for the delivery information. 839-2550EM 839-CC1110 839-CC1110T/R 839-CC2431 839-CC2431T/R 839-CC2510F16RSP 839-CC2510F16RSPR 839-CC2510F32RSP 839-CC2510F32RSPR 839-CC2510F8RSP 839-CC2510F8RSPR 839-CC2510T/R 839-CC2511F16RSP 839-CC2511F16RSPR 839-CC2511F32RSP 839-CC2511F32RSPR 839-CC2511F8RSP 839-CC2511F8RSPR 5-0507-50