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Microchip Technology Expands Analog Portfolio with High-Speed CAN Transceiver that Offers Industry-Leading Transient Voltage Tolerance.

Business Editors/High-Tech Writers

CHANDLER, Ariz.--(BUSINESS WIRE)--July 22, 2002

MCP2551, an ISO11898-Standard Physical Layer-Compliant Device,

Withstands Short Circuit Voltages from -40 Volts to +40 Volts

Microchip Technology Inc. (Nasdaq: MCHP) Monday announced the MCP2551, a high-speed CAN transceiver suitable for 12-volt and 24-volt systems, ideal for automotive and industrial applications.

The MCP2551 is a high-speed CAN fault-tolerant device that serves as the interface between a CAN-protocol controller and a system's physical bus. The device provides differential transmit and receive capability that enables many nodes to be connected to the same network.

The MCP2551 adheres to the stringent requirements of the ISO11898 Standard, a standard specification that describes the characteristics of setting up a network of nodes for road vehicles using CAN at communication speeds up to 1Mbps. Most automotive and many industrial applications require that CAN nodes adhere to the ISO11898 specification.

"The MCP2551 withstands industry-leading transient voltage tolerances from -250 to +250-volt peaks without damaging the circuit.

"Combining this transient voltage tolerance with the ability to withstand shorts from -40 to +40-volts makes this device a robust alternative to competitive devices," said Keith Pazul, product marketing manager for the Analog and Interface Product Division at Microchip Technology.

"This device, along with additional Microchip CAN products and related analog power and signal conditioning products, enable our customers to create complete CAN nodes using Microchip solutions exclusively."

The device features externally controlled output slope capability for reduced RFI emissions. For many applications, designers utilize lower speed CAN networks (typically 125kbps or lower) so they can implement their networks without twisted, shielded pair wiring.

By using the slope control input pin, differential output signal (CANH and CANL) changes can be controlled (slowed down) such that it is possible to implement networks with lower cost, non-shielded wiring while remaining below acceptable levels of radiated emissions. This lowers the overall network system cost while still providing robust data on the CAN bus.

CANH and CANL are protected against battery short circuits and electrical transients that can occur on the CAN bus. This feature prevents destruction of the transmitter output stage during such a fault condition.

The device is further protected from excessive current loading by automatic thermal shutdown circuitry that disables the output drivers when the junction temperature exceeds a nominal limit of 165 degrees Celsius.

All other parts of the chip remain operational and the chip temperature is lowered due to the decreased power dissipation in the transmitter outputs. Other features include permanent dominant detection.

Pricing for the MCP2551, available in 8-pin PDIP and SOIC packages, for 1,000-unit quantities is $1.29 each. Samples and low-volume production are available today with high volume production available in August 2002. For more information, contact any Microchip sales representative or authorized worldwide distributor.

About Microchip Technology

Microchip's CAN product portfolio includes CAN peripherals and a family of PICmicro(R) microcontrollers with integrated CAN support targeting applications in the automotive, industrial control and medical equipment markets.

The PIC18CX58 family of devices feature the company's high-performance PIC18CXXX core with an intelligent CAN interface allowing execution of complex control algorithms and network interfaces on the same microcontroller.

Featuring a stand-alone CAN controller with SPI(TM) interface for added design flexibility, the MCP2510 brings immediate CAN support to Microchip's entire PICmicro microcontroller line or to any microcontroller architecture with an SPI serial interface.

Available in a small 14-pin package, the MCP250XX mixed-signal and digital CAN I/O expanders provide a small, cost-effective solution for simple CAN nodes without utilizing a microcontroller.

Microchip has integrated analog technology, peripherals and features to meet today's demanding design requirements. Our broad spectrum of analog products addresses thermal management, power management, mixed-signal, linear and interface solutions.

Combined with "Intelligent Analog" microcontrollers, Microchip offers an extensive analog portfolio for thousands of high-performance design applications in the automotive, communications (wireless), consumer, computing and industrial control markets.

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(R) 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, with design facilities in Mountain View, Calif. and Bangalore, India; semiconductor fabrication facilities in Tempe and Chandler, Ariz. and Puyallup, Wash.; and assembly and test operations near Bangkok, Thailand.

Microchip employs approximately 3,100 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.

Note: The Microchip name and logo, PIC, PICmicro, microID and KEELOQ are registered trademarks of Microchip Technology Inc. in the United States and other countries. SPI is a registered trademark of Motorola. All other trademarks are the property of their respective owners.

Note: Product photo is available through editorial contact.
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Date:Jul 22, 2002
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