Jennic has announced that its JN5121 single chip IEEE 802.15.4 wireless microcontroller is now available and in production in volume quantities. It was designed for power-efficient control within wireless sensor networks based on the IEEE 802.15.4 and ZigBee standards. The JN5121 is unique since it combines a 32-bit RISC core, fully compliant 2.4GHz IEEE802.15.4 transceiver and integrated 64KB ROM and 96KB RAM memory blocks, all in a single 8x8mm 56 lead QFN chip package.

The JN5121 only requires an additional crystal oscillator, flash memory, decoupling components and printed antenna. A reference module is available from Jennic with designs that can be customized to suit the application with alternative antennas, IO and so on. The module is 18x25mm in size, and includes an integrated antenna, 21 multi-purpose digital IO, an SPI port and four analog connections. The device is controlled via the SPI or UART interfaces, whereas debug is achieved via a second UART port. Jennic also provides IEEE802.15.4 protocol software, coordinator and endpoint device evaluation boards and software development tools.