PSOC4 energy efficiency

[Anonymous]

For now the mono-core version of the Psoc6  is not yet available, also a Psoc4 may be a suitable low power solution.

When the energy efficiency is well documented for the two Cortex M cores integrated in the Psoc 6 I cannot find any number for the Psoc4.

What is the efficiency (µA/Mhz) of a low power PSOC4 (if a low power version exist)?

[NidhinM_71]

Hello,

You can find the PSoC 4 current consumption under different conditions and CPU frequencies from the respective device datasheets. Look for "DC Specifications" under the section "Device Level Specifications". Following table is an example from PSoC 4100S Plus device datasheet.

Although PSoC 6 has an active power advantage over PSoC 4, the latter has lower Deep Sleep currents. By properly switching between the power modes and using a variety of other techniques, you can easily design low power applications with PSoC 4. Please refer to the following application note for details:

http://www.cypress.com/documentation/application-notes/an86233-psoc-4-and-psoc-analog-coprocessor-lo... 

This application note also contains a handy power estimator spreadsheet tool.

Regards

Nidhin

[Anonymous]

Thank you for the answer Nidhin.

The Psoc 4100S has a lower power consumption than older Psoc 4 devices.

But sadly there is no more a stop mode (mode where the core is using only a few tenth of nA waiting for an external event).

I will have to look at the single core Psoc 6 to see if a stop mode is available.

[NidhinM_71 · Accepted solution]

PSoC 6 doesn't have a stop mode. However, it has a hibernate mode which consumes only 300nA at 1.8 V. In addition, PSoC 6 has a separate backup domain which allows you to completely shutdown the external regulator powering the system (PMIC control), and then re-enable it upon an RTC / pin interrupt. Details can be found in the following application note;

http://www.cypress.com/documentation/application-notes/an219528-psoc-6-mcu-low-power-modes-and-power...

Regards

Nidhin

[Anonymous]

Thank you for the information.

I will wait for the single core Psco6 to be available.