Technical | Cypress Semiconductor
As circuit designers, system designers or board designers, we have time and again had to throw down the gauntlet and have been asked to achieve the fastest speeds with the least power dissipation. In the end, we always have had to compromise one thing for the other. Faster speeds come at the price of power, and if we try to be more power-efficient, it might cut corners on the pace of operations.
Static RAMs (SRAM) are no different. On the one hand, until now, the fastest asynchronous SRAM would operate at 100 MHz and drain the battery within hours. On the other hand, SRAMs designed for battery-powered applications, such as handheld devices, would operate at a fifth of the speed of the fast SRAMs (20 MHz) to ensure years of long battery life. Since memory transactions are at the heart of all applications, speed limitations when accessing memory would make the system operate slower.
The good news is that Cypress has solved this speed-power bottleneck on its 65-nm process node. The SRAMs manufactured on this technology are offered with a PowerSnooze™ feature, enabling the SRAMs to operate at fast speeds of 100 MHz, while consuming less than 2 uA / Mbit of sleep current. By invoking this “deep sleep” feature of these SRAMs, you can quickly transition from a high-speed active state to a power-saving sleep state.
The PowerSnooze feature makes Cypress’ SRAMs ideal for industrial applications and IoT systems, where the emphasis is on completing the task quickly and switching to a power-saving state. You can now harness the power of your MCU; the SRAM is no longer a limitation in achieving peak performance. These devices are footprint-compatible with the standard SRAMs, making them easy to design with.
Check out our video on PowerSnooze, shot with a demo kit that has three sets of the classic Pacman character revealing a Cypress logo. Watch it to see who wins the race with the most fuel still left in the tank!
We love the creative and innovative ideas that makers from around the world have submitted to Cypress and Hackster’s “Sensing the World” contest. This contest was designed to showcase cool projects that use Cypress’ PSoC Analog Coprocessor. The PSoC Analog Coprocessor makes it easy to design sensor-based embedded solutions and leaves makers with no boundaries on what they can create. From wearables, to cars, kitchens, and gardens, check out some the innovative projects that have been submitted so far:
Ilter Koksal’s talking balcony project showcases how to make your home balcony interactive. This setup would send you alerts if someone is on your balcony or if the doors are open/closed, an especially useful feature in homes with children and pets. The system could even be integrated with cameras or UV index sensors for additional functionality.
Jefferson Paredes developed a pet monitoring project to highlight how pet owners can connect a dog house to the internet to activate features such as remote temperature monitoring and light switches, and enable owners to check if their dog is inside its pet home.
Jacek Pieczaba’s occupancy detector project was designed to help prevent accidents in which a child or pet is left unattended in a car in hot weather. This design shows how you can use sensors to automatically detect if someone is in a car—even when the car is turned off—and adjust the indoor temperature if necessary, while also sending an alert to the car owner’s smartphone.
To help protect precious bee hives, Nachem Rosenberg shared his project idea for a bee hive remote monitor which could sense temperature and humidity and make automatic adjustments. The system could also use motion and proximity sensors to alert beekeepers of theft and tampering.
If you haven’t submitted your project yet, it’s not too late! We’re accepting submissions through Feb. 26, 2017 and look forward to seeing many more innovative projects. For more details on our contest and prizes, please visit: https://www.hackster.io/contests/cypress-sensing-the-world-contest. We look forward to seeing your creations!
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