Suited for use in electronic door locks, garage door openers, remote keyless entry (RKE) and burglar alarm systems, and auto immobilizer and anti-theft mechanisms, the rfHCS362F and rfHCS362G wireless encoders integrate on-chip a RF transmitter together with the company's Keeloq access control system. The system consists of a programmable 32-bit serial number and two 6-bit user-programmable encryption keys--Keeloq is a code-hopping technology that makes each transmission unique. Both authentication devices feature adjustable output power (-12 to +2 dBm) and a VCO phase-locked to a quartz crystal reference for implementing a narrow receiver bandwidth to maximize both range and interference immunity. In addition, rfHCS362G has an integrated 310/480-MHz amplitude shift key (ASK) transmitter and rfHCS362F has a frequency shift key (FSK) transmitter in the same frequency range. Other features of the battery-operated wireless encoders include button queuing, Manchester and PWM encoding, low operating voltage (2.1V), low standby power dissipation (less than 1 µA), and a direct LED drive that also indicates low battery voltage. The rfHCS362G is housed in an 18-pin SOIC and costs $2.14 each/1,000 and the rfHCS362F comes in a 20-pin SSOP and is priced at $2.24. An evaluation kit is also available. For more information, contact MICROCHIP TECHNOLOGY INC., Chandler, AZ. (480) 792-7668.
Company: MICROCHIP TECHNOLOGY INC.
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