Low-Power RF System-on-Chip for ZigBee^® Applications

The CC2431 from Texas Instruments is the first SoC with a hardware location engine targeting low-power ZigBee^® wireless sensor networking applications, such as asset tracking, patient monitoring, inventory control, security and commissioning networks. The device features a powerful RSSI-based location engine—which reduces network traffic compared to centralized location systems—and is supported by Z-Stack™ protocol stack from TI.

The CC2431 is based on the industry’s first available SoC solution for low-power RF applications, the CC2430. Both devices combine the excellent performance of the industry-leading CC2420 RF transceiver core with an enhanced 8051 microcontroller, up to 128 kB flash memory, 8 kB of RAM and many additional features – all in a small 7mm x 7mm package.

CC2431 KEY FEATURES

• Location engine with accurate calculations of node in a network • High-performance and low-power 8051-MCU core • 2.4-GHz, IEEE 802.15.4-compliant, industry-leading CC2420 RF transceiver • Excellent receiver sensitivity and robustness to interferers • 128-kB in-system programmable flash • 8-kB RAM, 4 kB with data retention in all power modes • Very few external components • Only single crystal needed for mesh network systems • Low current consumption (RX: 27-mA, TX: 27-mA, MCU running at 32 MHz)