Cypress Targets LonWorks Control Networks with 3.3V Neuron Chip Samples

10/14/2003 - Cypress Semiconductor Corporation (NYSE: CY) is sampling two new 3.3V Neuron® chips for LonWorks® devices that deliver up to two times the memory of 5V pin-compatible alternatives while reducing power consumption by 33 percent. Attendees of the LonWorld® 2003 Exhibition in Munich, Germany, October 15-16th , will be able to place orders for the new devices at Cypress's booth.

Cypress's CY7C53120L8 and CY7C53150L chips enable sensors and actuators used in LonWorks -based building and home automation, industrial control, utility monitoring and transportation automation solutions to be networked and connected to the Internet. The new low-power controllers are supported by Echelon Corporation's (NASDAQ: ELON) NodeBuilder® 3.1 Development Tool.

"Cypress's new family of 3.3V Neuron chips enables developers to increase the effectiveness of control networks at the node level," said Norm Taffe, Control Communications Business Unit Director in Cypress's Personal Communications Division. "Lower power, increased I/O performance and higher memory integration open the door to a new generation of smart sensors and actuators that can collect and report data more efficiently than before, paving the way for more sophisticated automation applications."

The CY7C53120L8 and CY7C53150L devices include a hardware-based serial communications interface (UART) and serial peripheral interface (SPI) engine that is scalable to 2.5 Mbps, and a programmable low-voltage inhibitor (LVI). The UART and SPI enable a faster, more reliable interface to downstream components, while the programmable LVI allows customers to set voltage trip thresholds that reference the noise level, while reducing external components. The devices also feature a 5V-compatible communications port and 5V-tolerant I/Os for backward compatibility, and are compatible with Echelon's power line and free topology twisted pair transceivers.

"Cypress's new 3.3V Neuron chips should provide a smooth migration path to lower current devices, which is a design objective for many customers," said Michael R. Tennefoss, Echelon's vice president of marketing. "Additionally, the market demand for greater on-board memory has been rapidly increasing because of the added functionality and lower costs afforded by such designs. The new devices address this demand and give designers more flexibility with regard to memory partitioning and the complexity of applications they can run."

Cypress's ANSI/EIA709.1B-compliant, low-power components are available in two distinct formats. The CY7C53120L8 features 16 KBytes of ROM, 4 KBytes of RAM and 8 KBytes of internal EEPROM memory and is offered in 32-pin SOIC and 44-pin TQFP packages. The CY7C53150L incorporates 4 KBytes of RAM and 2.7 KBytes of EEPROM memory and uses an external memory interface that can address up to 56 KBytes. It is available in 64-pin and 100-pin TQFP packages. Both devices feature three eight-bit pipelined processors that enable concurrent processing of application code and network traffic at speeds of up to 20 MHz. They also offer an 11-pin configurable I/O block and a flexible five-pin communications port that can be configured to interface with a wide variety of 5V and 3.3V media transceivers over a wide range of data rates.

To facilitate communication with other devices using the ANSI/EIA709.1B protocol, the CY7C53120L8 and CY7C53150L feature new system firmware from Echelon. Development support is provided by Echelon's NodeBuilder 3.1 Development Tool with Service Pack 1, which simplifies LonWorks network configuration and significantly reduces development time. The NodeBuilder tool makes it simple to install and test LonWorks devices within functional networks. It also automatically generates source code, compiles and builds applications, and incorporates an integrated editor and source-level debugger for rapid code development.

Pricing and Availability
Cypress's CY7C53120L8 solution is priced at $3.80 and the CY7C53150L is priced at $3.10 in 10,000-unit quantities. Both products are available in sample quantities today by contacting your local Cypress sales representative or visiting Cypress online at

About Cypress
Cypress Semiconductor Corporation (NYSE: CY) is Connecting From Last Mile to First MileTM with high-performance solutions for personal, network access, enterprise, metro switch, and core communications-system applications. Cypress ConnectsTM using wireless, wireline, digital, and optical transmission standards, including USB, Fibre Channel, SONET/SDH, Gigabit Ethernet, and DWDM. Leveraging its process and system-level expertise, Cypress makes industry-leading physical layer devices, framers, and network search engines, along with a broad portfolio of high-bandwidth memories, timing technology solutions, and reconfigurable mixed-signal arrays. More information about Cypress is accessible online at

About Echelon Corporation
Echelon Corporation (NASDAQ: ELON) is the creator of the LonWorks platform, the world's most widely used standard for connecting everyday devices such as appliances, thermostats, air conditioners, electric meters, and lighting systems to each other and to the Internet. Echelon's hardware and software products enable manufacturers and integrators to create smart devices and systems that lower cost, increase convenience, improve service, and enhance productivity, quality, and safety. Thousands of companies have developed and installed LonWorks products and more than 30 million LonWorks enabled processors have been shipped for use in homes, buildings, factories, trains, and other systems worldwide. More information about Echelon can be found at

Cypress and the Cypress logo are registered trademarks of Cypress Semiconductor Corporation. "Connecting From Last Mile to First Mile" and "Cypress Connects" are trademarks of Cypress. Echelon, LonWorks, LonWorld, NodeBuilder, Neuron, and the Echelon logo are trademarks of Echelon Corporation, registered in the United States and other countries.

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