Manufacturing Industry
Single-chip solution for passive keyless entry: combines analog front end, microcontroller in one package.(ELECTRONICS)
Design News, September, 2005 by Murray, Charles J.
Engineers designing radio frequency systems for passive keyless entry and tire pressure monitoring may now be able to swap two chips for one, thanks to a new device that combines a microcontroller with a three-channel analog transponder. Known as the Microchip PIC16F639, the new chip enables designers of RF devices, such as automotive passive keyless entry systems, to more easily package electronic components in handheld keyfobs.
Microchip Technology, Inc. (http://www.microchip.com), makers of the new device, say that it can also be used in tire pressure monitoring, computer access, door locks, gate openers, and even "smart" doggie doors. "When you put a chip inside somebody's keyfob, size is a big factor," notes Fanie Duvenhage, a product marketing...
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