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Microchip Technology Expands Analog Portfolio with
High Speed CAN Transceiver that Offers IndustryLeading Transient Voltage Tolerance
FOR IMMEDIATE RELEASE
Editorial Contact
Reader/Literature Inquiries:
Paul Loughran
Microchip Technology Inc.
Web:www.microchip.com
(480) 792-7182
Office(480) 792-7668
[email protected]
MCP2551, an ISO11898-Standard Physical Layer-compliant device,
withstands short circuit voltages from –40 volts to +40 volts
CHANDLER, Ariz., Jul. 22, 2002 – Microchip Technology Inc. (NASDAQ: MCHP) today 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 CANprotocol 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® 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™
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® 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®
RFID devices; serial EEPROMs; and the patented KEELOQ® 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 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.