Single-chip transmitters include microcontroller and memory

Wireless applications are constantly driving the demand for I high integration, low power consumption, and low cost, But beyond these three demands, many wireless applications, including keyless entry, remote control, short-haul wireless data communications, and remote sensing also require digital control for data I encoding, transmission control, and user interfacing. Additionally, nonvolatile memory is often required to retain security or sensor information when the battery runs down. To satisfy the additional requirements of these applications, Atmel Corp. (San Jose, CA) has developed a family of single-chip RF transmitters (Txs) that incorporate an 8-b reduced-instruction-set-computer (RISC) microcontroller (see figure).