Austin, Tex. Silicon Laboratories Inc. says its new CP220x single-chip Ethernet controller enables designers to easily add embedded Ethernet connectivity to a broad range of products including POS terminals, access control devices, security panels and VoIP adapters.
Available in a small 5 x 5 mm package, the CP220x offers an integrated IEEE 802.3-compliant 10 Base-T Ethernet MAC and PHY and 8 kBytes of on-board flash memory that is factory preprogrammed with a unique 48-bit MAC address.
By implementing a high-performance parallel external memory interface with an operating speed of up to 30 Mbps, the CP220x allows a companion MCU to execute stack or other code much more efficiently since less time is spent in communication. The new device is capable of operating from –40 to +85 degrees while consuming only 70 mA, or as little as one-third the current of competing devices.
The CP220x also supports auto-negotiation, which often is the only mechanism available to the user to inform the network of the controller's complete Ethernet capabilities. Without this mechanism or user control of the switch, the relevant network segment will default to its lowest common capability resulting in a lower bandwidth communication solution.
Silicon Laboratories offers an Ethernet development kit that provides all of the hardware and software necessary to develop real-world embedded Ethernet solutions with the CP220x.
Included in the kit is a C8051F120 MCU target board, a CP2200-based Ethernet development board, a USB debug adapter and all necessary cables to debug the MCU and connect it to an Ethernet network. The CMX Micronet TCP/IP protocol stack, which was developed specifically for embedded processors, is included in an easy-to-use library format. A TCP/IP configuration wizard is provided to generate a highly customized library optimized for user-selected protocols. This wizard generates both the framework code required to use the library and a project file that can be managed within the Silicon Laboratories Integrated Development Environment (IDE). The Ethernet Development Kit is available for $199 at
The CP220x is available in a 5 x 5 mm 28-pin quad flat no-lead (QFN) package or a 48-pin thin quad flat package (TQFP). Pricing for the CP220x family begins at $3.32 in quantities of 10K. Samples are available now with production quantities available beginning in Q2 2006.
Silicon Laboratories (877) 444-3032