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MCUs target apps that require USB connectivity

Posted: 16 Feb 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Marty Gold? Silicon Laboratories? C8051F34x? microcontroller? C8051F32x?

Silicon Laboratories Inc.'s C8051F34x microcontroller (MCU) family has been designed to meet the demands of applications that require USB connectivity and high-performance analog, high-performance CPU processing and larger memory footprints, including medical diagnostic equipment, point-of-sale terminals, weigh scales, embedded modems and voice over Internet protocol (VoIP) telephones.

The MCUs contain a high-speed pipelined 8051-compatible CPU core operating up to 48MIPS, a 10bit analog-to-digital converter (ADC), up to 64KB of on-board Flash memory and 5,376 bytes of RAM, which includes 1KB of USB FIFO. The on-chip USB engine has a control endpoint and six flexible endpoint pipes allowing customers to support multiple USB device types. An enhanced feature set includes SPI, SMBus, external memory interface (EMIF), counters, PWM generators and comparators.

All of Silicon Laboratories' USB MCU products are USB 2.0 compliant, supporting both low-speed and full-speed operation and include an on-chip voltage regulator and physical layer transceiver for direct interface to the USB connection without the need for additional components. Other peripheral functions include UARTs, timers and temperature sensors.

"There is increasing demand for USB solutions that offer higher integration, lower cost and a complimentary tool chain to accelerate product development," said Derrell Coker, VP of Silicon Laboratories. "With the expansion of our USB product line, we are able to address our customers' full spectrum of requirements."

Silicon Laboratories' offers a hardware development platform for each USB MCU product family as well as software development tools that accelerate time-to-market by simplifying the design process and allowing designers to focus on their end product. Software development tools include a full-featured integrated development environment (IDE) with single-cycle hardware breakpoints and configurable watch windows. Host and device source code examples for commonly used drivers and transfer types are included that enable designers to build their system to interface to standard host operating systems without the need for custom driver development.

Another key software tool, USBXpress, provides the easiest way to achieve 'bulk' data transfer. Silicon Laboratories also works with Jungo Ltd to supply rapid driver development software and National Technical Systems, Inc to accelerate USB compliance testing.

The company's USB MCU products are offered in a variety of packages and price points. The C8051F32x family is available in a 5-by-5mm 28-pin QFN package or a 32-pin LQFP. Pricing for the C8051F32x family begins at $1.76 in quantities of 10,000. Meanwhile, the C8051F34x family is available in a 32-pin LQFP and a 48-pin thin quad flat pack (TQFP). Pricing for the C8051F34x family begins at $3.42 in quantities of 10.000. Full production is scheduled for Q1 2006.

- Marty Gold

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