Employing a unique eight-bit architecture and integrating high-efficiency
dc/dc boost converters, the C8051F9xx family of "microcontrollers (MCUs)" is described as the industry's first MCUs capable of operating down to 0.9V, enabling portable devices to derive power from a single-cell battery. The devices specify a typical sleep-mode current of less than 50 nA and can wake-up from sleep mode with the CPU operating at 25 MIPS and ready to make an a/d converter measurement within 2 ms. Active-mode current ranges as low as 170 µA/MHz. The family includes devices with 32 KB and 64 KB of flash and all include 4 KB of RAM. Available in 32-pin, 7 mm x 7 mm LQFP, 24-pin, 4 mm x 4 mm QFN, and 32-pin, 5 mm x 5 mm QFN packages, pricing starts at $1.99 each/10,000. SILICON LABORATORIES INC., Austin, TX. (877) 444-3032. PRODUCT INFO: Click Here For more Microcontrollers with flash, click here.____________________
Rev up your interdisciplinary design skills
What happens when a microcontroller turns on a power FET, sending a current pulse to a motor coil that develops a magnetic field that turns the rotor shaft, advancing a timing belt that drives a pair of nip rolls suspended on bearings in a web-processing operation on a form, fill, and seal machine installed on a potato chip line at a Frito Lay plant in central California?
- And how can you be sure that the encoders, prox sensors, and other feedback devices you plan to use will accurately see and report every relevant motion, machine state, and process condition?
- And will the signals get through the networks fast enough, without being corrupted, giving the controllers time to execute their algorithms as intended?
- It's a lot to think about, and it only scratches the surface of what many engineers grapple with today. If you happen to be one of them, then the place for you — where you can find answers and meet others with similar concerns — is www.Mechatronic-Design.com.
Backed by some of engineering's top information sources including Machine Design, Electronic Design, Motion System Design, and Power Electronics --" Mechatronic-Design.com " is the interdisciplinary engineer's desktop, toolbox, library, and lifeline in one easily accessible place.
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