Cypress MicroSystems Introduces the Smallest, Most Highly Integrated PSoC Device

Extensive Analog and Digital Integration Benefits Consumer and Industrial Applications -- for Less than $1.00

LYNNWOOD, Wash.—(BUSINESS WIRE)—Dec. 16, 2004— Cypress MicroSystems Inc., a subsidiary of Cypress Semiconductor Corporation (NYSE: CY), today announced production shipments of its smallest and most highly integrated Programmable System-on-Chip(TM) (PSoC(TM)) mixed-signal array. In addition to four configurable analog blocks and four configurable digital blocks, the CY8C21x34 devices provide eight Kbytes of flash memory for program storage and 512 bytes of SRAM for data, making it ideal for cost-sensitive consumer and industrial control applications such as touch-sensitive control panels, security sensors and control, smart temperature, pressure and flow sensors, large sensor arrays, fan controllers and battery chargers.

The new PSoC's built-in low-Ron 28:1 analog input multiplexer greatly simplifies sensor-control designs. Each of the up to 28 pins has a switch that, when selected, connects it to an analog bus. The bus connects to a configurable analog array which, when combined with on-chip digital resources, enables the creation of complex signal processors.

"The CY8C21x34 offers users the expanded Flash program memory, analog configurability and system integration that they need at a price they can easily afford," said John McDonald, Vice President of Marketing for Cypress MicroSystems. "This flexibility increases PSoC's core value proposition -- and now the already low-priced PSoC solution can further reduce component cost by replacing expensive off-chip multiplexers."

The CY8C21x34's analog and digital blocks can be configured as 8-bit timers, counters and pulse-width modulators (PWMs). For example, the new device can integrate a full-duplex UART, I2C, SPI, two 10-bit ADCs, and a 28:1 low-Ron analog multiplexer in a single chip, while competing devices require a multi-chip solution. This lowers the overall device count, reduces board size and lowers BOM cost in addition to improving system quality and reliability.

Pricing and Availability

The CY8C21x34, is available in 16 SOIC, 20/28 SSOP and 32 5x5 MLF. It operates between 2.4V and 5.25V from -40 to 85 degrees C. The product is in production and priced as low as $0.99/10,000 units.


A high-resolution photo of the CY8C21x family of devices is available by emailing Cypress's public relations department at

About the PSoC Family

A true system-on-a-chip, the PSoC device is a configurable mixed signal array that integrates the microcontroller and related peripheral circuits typically found in an embedded design. Employing easy to use development tools, designers select configurable, well characterized library elements to provide analog functions such as amplifiers, ADCs, DACs, filters and comparators and digital functions such as timers, counters, PWMs, SPI and UARTs. PSoC analog performance is instrumentation-quality -- including rail-to-rail inputs, exceptionally low noise, input leakage and voltage offset, programmable gain, and 14-bit ADCs.

In addition to these configurable analog and digital blocks, PSoC devices include a fast 8-bit microcontroller, up to 32KB of Flash memory, 2KB of SRAM, an 8x8 multiplier with 32-bit accumulator, power and sleep monitoring circuits, and hardware I2C communications.

All PSoC devices are dynamically reconfigurable, enabling designers to create new system functions on-the-fly. Re-configuring the same silicon for different functions at different times, designers can achieve more than 120 percent utilization of the die in many cases. In the automotive PSoC LIN bus reference design, the same digital blocks are re-configured four times to support the different LIN communication modes; in doing so, these blocks consume less than 10 percent of PSoC hardware resources and less than 10 percent of the PSoC MCU cycles.

Software and Support

A CY8C21x34-specific service pack is downloadable free from the Cypress Semiconductor website. This service pack is an enhancement to the company's existing software development environment, PSoC Designer 4.2.

The software development environment, PSoC Designer 4.2 is a full-featured, GUI-based design tool suite that enables the user to configure their design in silicon with simple point and click options; code the MCU in either C or assembly language; and debug the design using sophisticated features such as event triggers and multiple break points while single-stepping through the code in C or assembly or a mix of the two. PSoC Designer 4.2 is free and can be downloaded at

The new CY3215-DK Professional Class Development Kit includes a tiny full-speed in-circuit USB-based emulator with a large trace buffer, which seamlessly integrates with PSoC Designer 4.2 and the user's development board. The development kit includes everything necessary to complete a design with the PSoC family of ICs. The kits also contain all materials for the first four "Tele-training" classes offered on line by Cypress. The tools are designed for ease of use, to support all the advanced PSoC packages and to keep the cost of development to a minimum while providing all the features found in tools that cost $2,500 or more. The CY3215-DK is priced at $599 (suggested resale).

About Cypress MicroSystems

Headquartered in Lynnwood, Wash., Cypress MicroSystems develops and markets the expanding Programmable System-on-Chip (PSoC) product family -- high-performance, field-programmable mixed signal integration products for high-volume embedded control functions in consumer, industrial, office automation, telecom and automotive applications. The close association with Cypress Semiconductor allows access to their process and design technology, and field sales and applications forces. More information about Cypress MicroSystems and its successful line of PSoC products -- as well as access to over 150 PSoC applications notes -- is available online at

About Cypress

Cypress Semiconductor Corporation (NYSE: CY) is Connecting From Last Mile to First Mile(TM) with high-performance solutions for personal, network access, enterprise, metro switch, and core communications-system applications. Cypress Connects(TM) 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 reprogrammable mixed-signal arrays. More information about Cypress is accessible online at

Cypress and the Cypress logo are registered trademarks of Cypress Semiconductor Corporation. "Connectivity From Last Mile to First Mile" and "Cypress Connects" are trademarks of Cypress. "Programmable System-on-Chip," PSoC and PSoC Designer are trademarks of Cypress MicroSystems. All other trademarks are the property of their respective owners.

Cypress Public Relations
Karen Suty, 408-545-6906

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