Wireless Encoder provides security.

Press Release Summary:



rfHCS362G/362F encoders integrate built-in radio frequency (RF) transmitter with company's secure Keeloq(R) access control system. Encoder provides programmable 32-bit serial number and two 64-bit user-programmable encryption keys for secure identification. Code hopping technology makes each transmission unique, eliminating threat of capture and re-send schemes. Applications include electronic door locks, door openers, and remote keyless entry (RKE).



Original Press Release:


Microchip Technology Releases Single-Chip Keeloq(R) Security And Radio Frequency Transmitter Solution


EMBEDDED SYSTEMS CONFERENCE, SAN FRANCISCO, Calif., March 13, 2002 - Microchip Technology Inc. [NASDAQ: MCHP] introduced today its new wireless rfHCS362 encoder, which integrates a built-in radio frequency (RF) transmitter - with the company's highly secure KEELOQ(R) access control system. Providing both standard, as well as new enhanced KEELOQ features, the rfHCS362G and rfHCS362F are single-package, low-cost authentication devices that require minimal external components for operation. The devices offer designers an easy "no code development required" system solution for secure authentication.

The rfHCS362G/362F encoders offer a programmable 32-bit serial number and two 64-bit user-programmable encryption keys for secure identification. The KEELOQ code hopping technology makes each transmission unique, thereby eliminating the threat of capture and re-send schemes while the length of the transmission eliminates the threat of code scanning. Targeted applications include electronic door locks, garage door openers, remote keyless entry (RKE), burglar alarm systems, property identification, remote control, auto immobilizers and theft protection.

The rfHCS362G features an integrated 310-440 MHz Amplitude Shift Key (ASK) transmitter and the rfHCS362F features a Frequency Shift Key (FSK) transmitter in the same frequency range. Both devices feature adjustable output power (-12dBm to +2dBM) and a voltage controlled oscillator (VCO) phase locked to a quartz crystal reference to allow implementation of a narrow receiver bandwidth to maximize range and interference immunity even at extremely low RF power levels.

The device features button queuing (to increase the number of functions and enable a single button to perform multiple functions), Manchester and Pulse Width Modulation (PWM) encoding, and timing output bits to determine how long a button was pressed. Programmable time-out options, programmable data rates and code word blanking options, a tunable oscillator and low voltage detector are additional features.

Designed for battery operation, the devices feature low standby power consumption (less than 1 uA) to improve battery life, low operating voltage of 2.2V, and a direct LED drive that also indicates low battery voltage.

The 18-pin SOIC rfHCS362G costs $2.14 each and the 20-pin SSOP rfHCS362F costs $2.24 each in 1,000-unit quantities. Samples are available now and volume production is scheduled for April. Several application notes on KEELOQ designs are also available on Microchip's website. Microchip's KEELOQ Evaluation Kit and the PRO MATE(R) II device programmer support the rfHCS362G/362F devices. For more information on these new devices, contact any Microchip sales representative or authorized worldwide distributor or visit www.microchip.com.

Microchip Technology Inc. manufactures the popular PICmicro(R) field-programmable RISC microcontrollers, which serve 8- and 16-bit embedded control applications, and a broad spectrum of high-performance linear and mixed-signal, power management and thermal management devices. The Company also offers complementary microperipheral products including interface devices; microID(TM) RFID devices; serial EEPROMs; and the patented KEELOQ(R) security devices. This synergistic product portfolio targets thousands of applications and a growing demand for high-performance designs in the automotive, communications, computing, consumer and industrial control markets. The Company's quality systems are ISO 9001 (1994 version) and QS9000 (1998 version) certified. Microchip is headquartered in Chandler, Arizona with design facilities in Mountain View, California and Bangalore, India; semiconductor fabrication facilities in Tempe and Chandler, Arizona and Puyallup, Washington; and assembly and test operations near Bangkok, Thailand. Microchip employs approximately 2,950 people worldwide and has sales offices throughout Asia, Europe, Japan and the Americas. More information on the Company can be found at www.microchip.com.

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