infoTECH Feature

June 12, 2009

Cypress Debuts Two PSoC Devices for Enhancing Analog and Digital Performance

Cypress Semiconductor Corp. has introduced two new PSoC programmable system-on-chips with enhanced analog and digital performance.

The CY8C21X45 and CY8C22xxxPSoC devices offer greater flexibility, configurability and better performance of digital resources. This is used in the implementation of PWMs, timers, communication interfaces like I2C and SPI among others.

The PSoC uses a dedicated dual-channel CapSense capacitive touch-screen interface or CapSense Plus capability for implementing multiple buttons and slider interfaces while managing functions like motor control, intelligent sensing, LED control and others. The new chip is suitable for applications in white goods, communications, industrial, automotive and consumer electronics.

The PSoC architecture integrates programmable analog and digital blocks with a microcontroller offering better integration and flexibility for designers. The digital resources on the new devices offer a hardware real-time clock and PWM deadband and single/multi shot support which reduces CPU horsepower and engineering development time, said Cypress.

The new device also includes a faster, dedicated Successive-Approximation Register (SAR) Analog-to-Digital Converter (ADC (News - Alert)) with sample and hold capability delivering sampling rates up to 150 ksps. They allow every I/O to be analog or digital with easy accessibility, so that customers can easily integrate system peripherals.

“The improved analog and digital performance in these new devices further extends PSoC’s unmatched integration and flexibility,” said Matt Branda, marketing director for Cypress’s PSoC products. “With the tremendous growth experienced by PSoC, Cypress is moving quickly to extend the performance of the architecture to address a much wider array of markets and applications.”

The new features of the PSoC devices include 2-channel dedicated peripherals for implementing up to 37 CapSense touch-sensing buttons for supporting additional functions, shift function register support, variable length serial peripheral interface (SPI) from 8-bit to16-bit, I2C hardware address matching, hardware real-time clock and dual analog bus for SAR ADC.

PSoC devices feature a highly configurable system-on-chip architecture for embedded control design. It integrates configurable analog and digital circuits, controlled by an on-chip microcontroller. This includes up to 32 Kbytes of Flash memory; 2 Kbytes of SRAM and 8x8 (News - Alert) multiplier with 32-bit accumulator; power and sleep monitoring circuits and hardware I2C communications.

Cypress claims one PSoC device can integrate about 100 peripheral functions saving on design time, board space and power consumption. The flexible PSoC resources allow designers to future-proof their products by enabling firmware-based changes during design, validation, production, and in the field.
 

Shamila Janakiraman is a contributing editor for TMCnet. To read more of Shamila’s articles, please visit her columnist page.

Edited by Patrick Barnard
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