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Single-chip Zigbee IC promises low power consumption

Posted: 24 Jun 2008 ?? ?Print Version ?Bookmark and Share

Keywords:Zigbee IC? IEEE 802.15.? wireless application?

Freescale Semiconductor has begun sampling the latest addition in its MC1322x single-chip IEEE 802.15.4/Zigbee Platform-in-Package (PiP) family, designed to provide a highly integrated, total solution with very low power consumption. Freescale was able to achieve this by integrating the essential components of an IEEE 802.15.4 based application within a single package, requiring designers to add only an antenna and crystal.

The MC13224 is designed for a range of wireless applications, including energy management, commercial building automation, industrial control and monitoring and home entertainment control. The family supports existing protocols, such as SMAC, IEEE 802.15.4 MAC, Zigbee stack and Synkro network protocol stack, with the ability to support the WirelessHART specification, ISA100 and 6LoWPAN.

The MC13224 contains a 32bit ARM7 MCU, a fully compliant IEEE 802.15.4 transceiver, flash, RAM and ROM, high-performance peripherals, balun and RF matching components. This is all integrated into a small-footprint land-grid array package that virtually eliminates the need for external RF matching components, making it easy for designers to get up and running quickly and ultimately decreasing time- to-market and overall system cost.

The MC13224's typical transmit currents of 28mA and receive currents of 21mA can even be lowered with MCU bus stealing enabled. With receive sensitivity of up to -100dBm and maximum output power of +5dBm, the MC1322x claims to offer the highest link margin. Onboard power supply regulation is provided for source voltages from 1.8Vdc to 3.6Vdc, and can operate over an extended temperature range up to +105C.

In addition, the MC1322x family is engineered to double the expected battery life for current IEEE 802.15.4 and Zigbee protocol solutions, in many cases exceeding the shelf life of batteries. It does this by providing numerous low current modes to maximize battery life with sleep or restricted performance operation and also contains an on-board buck converter that takes advantage of the operating characteristics of Lithium-ion or NiCad batteries.

"We've seen high demand for our IEEE 802.15.4/Zigbee PiP family as wireless applications such as home entertainment control, smart energy, industrial and process control and monitoring continue their rapid growth," said Brett Black, manager of Freescale's wireless connectivity operation. "Our customers need a platform solution that helps them get to market quickly so they can keep pace with this growth and be ready to develop the applications that could be next. With the designer's needs in mind, we developed the MC13224 as a solution that provides high-performance functionality and industry-leading integration at a cost-effective price point."

MC1322x development kits are orderable now. Production quantities are expected to be available in September. Suggested resale pricing for the MC13224V in 10,000 resale quantities is $4.99.

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