Combines data transmission security with power management
Microchip Technology Inc. announced a Flash, 8-bit PIC® microcontroller with a 3-channel, transponder analog front end and an integrated KEELOQ® cryptographic peripheral. Applications for the PIC16F639 include: Automotive (PKE, tire-pressure monitoring systems); Authentication (intelligent RFID, property and identity, hospital systems, computer access); Security Systems (door locks, gate openers, doggie doors, remote sensors and their intercommunication); and other general-purpose applications. Key features of the PIC16F639 microcontroller include: Precision 8 MHz internal oscillator with software clock switching, up to 3.5 Kbytes of Flash program memory, 128 bytes of RAM, 256 bytes of EEPROM, two analog comparators, one 8-bit timer, and one 16-bit timer. NanoWatt low-power and reliability features Include: Ultra Low Power Wakeup (ULPW), software-selectable Brownout Reset (BOR), Programmable Low Voltage Detect (PLVD), Wakeup Reset (WUR) feature, and Enhanced Watchdog Timer (EWDT). LF analog front end features include: three channels for omni-directional 125 kHz wireless communications, 3 mV input sensitivity, programmable antenna tuning, and battery-less operation.
Using wireless chips and accessories, engineers can now extract data from the unlikeliest of places -- pumps, motors, bridges, conveyors, refineries, cooling towers, parking garages, down-hole drills and just about anything else that can benefit from monitoring.
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