EM260 ZigBee/802.15.4 Network Processor
The EM260 integrates a 2.4GHz, IEEE 802.15.4-compliant transceiver with a 16-bit network processor (XAP2b core) to run EmberZNet, the Ember ZigBee-compliant network stack. The EM260 exposes access to the EmberZNet API across a standard SPI module, allowing application development on a Host processor. This means that the EM260 can be viewed as a ZigBee peripheral connected over a SPI. The XAP2b microprocessor is a power-optimized core integrated in the EM260. It contains integrated Flash and RAM memory along with an optimized peripheral set to enhance the operation of the network stack.

Texas Instruments' eZ430-RF2480 
The eZ430-RF2480 Demo Kit comes with the hardware necessary to demonstrate ZigBee functionality using the CC2480 device. This includes 3 CC2480 target boards, 1 eZ430 USB emulator board, and 2 eZ430 battery boards.

Jennic's JN5139-xxx-Myy Family
Jennic's JN5139-xxx-Myy family is a range of surface mount RF modules that enables users to implement IEEE802.15.4 or ZigBee compliant systems with minimum time to market and at the lowest cost.

RFM's ZMN2430 Module
Small in size, the low cost ZMN2430 from RFM is ideal for ZigBee applications needing very low current consumption including industrial sensors, building and home automation, and any other applications requiring ZigBee's unique capabilities. The 2.4GHz, license-free band is also more widely accepted internationally.

Atmel's AT86RF230
Atmel's AT86RF230 is a low-power 2.4GHz radio transceiver especially designed for ZigBee/IEEE 802.15.4 applications. The AT86RF230 is a true SPI-to-antenna solution.

Ember Offers Several Different IEEE 802.15.4/ZigBee Solutions
The EM250 is a single-chip solution that integrates a 2.4GHz, IEEE 802.15.4-compliant transceiver with a 16-bit XAP2b microprocessor. It contains integrated Flash and RAM memory and peripherals.

Texas Instrument's CC2480 ZigBee Processor
Texas Instruments' cc2480 is a cost effective, low power, Z-Accel ZigBee processor that provides full ZigBee functionality with a minimum development effort.